Document that a sandboxed logging program needs its own network permission

A logging program started as a Flatpak, or through a Wine environment such as Bottles, uses the network permissions of that sandbox. Without shared=network its 127.0.0.1 is not the loopback KST4Contest listens on, so the connection is refused although KST4Contest reports the port correctly. Adds the check and the override command to the DX Cluster troubleshooting section in both language versions, and notes that the published KST4Contest Flatpak manifest already carries --share=network. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HT8R7zTMoQnmJj6dGbaqqf
chore: update AUR packages to v1.44.0 [skip ci]
2026-09-11 11:45:27 +02:00 · 2026-09-07 22:21:47 +02:00 · 2026-09-04 12:23:20 +00:00 · 2026-09-04 14:07:43 +02:00 · 2026-09-04 13:55:45 +02:00 · 2026-09-04 13:47:39 +02:00
85 changed files with 5964 additions and 1234 deletions
@@ -551,6 +551,9 @@ jobs:
    name: Publish Flatpak OSTree Repo (nightly)
    runs-on: ubuntu-latest
    needs: build-flatpak
    concurrency:
      group: flatpak-repo-publish
      cancel-in-progress: false
    steps:
      - name: Install Flatpak tooling
@@ -646,6 +646,9 @@ jobs:
    name: Publish Flatpak OSTree Repo (${{ github.ref_name }})
    runs-on: ubuntu-latest
    needs: build-flatpak
    concurrency:
      group: flatpak-repo-publish
      cancel-in-progress: false
    steps:
      - name: Install Flatpak tooling
@@ -786,45 +789,45 @@ jobs:
            release-assets/macos/KST4Contest-${{ github.ref_name }}-macos-*.dmg,
            release-assets/docs/KST4Contest-${{ github.ref_name }}-manual-en.pdf,
            release-assets/docs/KST4Contest-${{ github.ref_name }}-manual-de.pdf
            # The update feed is generated only after GitHub has published the
            # release. Otherwise the Releases API cannot return the release notes
            # belonging to the tag which triggered this workflow.
            - name: Set up Node.js for website build
              uses: actions/setup-node@v4
              with:
                node-version: "24"
                cache: npm
                cache-dependency-path: website/package-lock.json
-            - name: Build and validate website after release publication
+      # The update feed is generated only after GitHub has published the
-              working-directory: website
+      # release. Otherwise the Releases API cannot return the release notes
-              run: |
+      # belonging to the tag which triggered this workflow.
-                npm ci
+      - name: Set up Node.js for website build
-                npm test
+        uses: actions/setup-node@v4
-                npm run build
+        with:
-              env:
+          node-version: "24"
-                GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          cache: npm
          cache-dependency-path: website/package-lock.json
-            - name: Verify Stable release in update feed
+      - name: Build and validate website after release publication
-              if: ${{ !startsWith(github.ref_name, 'beta-') }}
+        working-directory: website
-              working-directory: website
+        run: |
-              run: npm run validate:version-info
+          npm ci
-              env:
+          npm test
-                EXPECTED_STABLE_VERSION: ${{ github.ref_name }}
+          npm run build
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-            - name: Attach verified version info to tagged release
+      - name: Verify Stable release in update feed
-              run: >-
+        if: ${{ !startsWith(github.ref_name, 'beta-') }}
-                gh release upload "${GITHUB_REF_NAME}"
+        working-directory: website
-                website/_site/kst4ContestVersionInfo.xml
+        run: npm run validate:version-info
-                --clobber
+        env:
-              env:
+          EXPECTED_STABLE_VERSION: ${{ github.ref_name }}
                GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-            - name: Upload verified website artifact
+      - name: Attach verified version info to tagged release
-              uses: actions/upload-artifact@v4.3.4
+        run: >-
-              with:
+          gh release upload "${GITHUB_REF_NAME}"
-                name: kst4contest-website-${{ github.ref_name }}
+          website/_site/kst4ContestVersionInfo.xml
-                path: website/_site/
+          --clobber
-                if-no-files-found: error
+        env:
-                retention-days: 14
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Upload verified website artifact
        uses: actions/upload-artifact@v4.3.4
        with:
          name: kst4contest-website-${{ github.ref_name }}
          path: website/_site/
          if-no-files-found: error
          retention-days: 14
@@ -1,6 +1,6 @@
 # KST4Contest Project Context
-Last reviewed: 2026-08-27
+Last reviewed: 2026-09-03
 This file is the durable technical project context for KST4Contest. It is not a user manual and not a replacement for the changelog. Current code, tests and authoritative external specifications remain the source of truth when this document is stale or ambiguous.
@@ -21,8 +21,8 @@ KST4Contest is a Java/JavaFX desktop client for ON4KST chat focused on VHF/UHF/m
 ### Chat identity
- Full callsign variants can be distinct chat-member identities.
+- For remote chat participants, the complete visible callsign plus category forms the chat-member identity.
- Category is part of chat identity.
+- Full callsign variants can therefore be distinct chat-member identities.
 - Base-call normalization is permitted only for explicitly base-call-wide functions.
 - Worked status is shared across suffix variants of the same base call.
 - Monitoring a variant such as `DN9APW-2` or `DN9APW-70` intentionally monitors the base call `DN9APW`.
@@ -34,6 +34,7 @@ KST4Contest is a Java/JavaFX desktop client for ON4KST chat focused on VHF/UHF/m
 - `NOT-QRV` overrides positive inferred band-availability hints.
 - Unknown/missing frequency, QRB, QTF or similar external data must remain unavailable rather than becoming a fabricated zero/default.
 - Features that depend on frequency should use the current/actual QRG according to current implemented rules; do not silently revert to a fixed 144 MHz default.
 - Complete digit-only frequencies use their final three digits as the kHz part and are accepted only when the resulting MHz value lies within a supported `Band` range. The same full-frequency parser is used for station names and public or directed chat messages. Relative QRG rules and bare three-digit context handling remain separate.
 ### JavaFX/threading
@@ -49,6 +50,17 @@ JavaFX ObservableList / UI state
 `MessageBusManagementThread` must not directly iterate or mutate UI-bound JavaFX collections. UI-visible changes should cross the controller/UI boundary and run on the JavaFX Application Thread.
 ## Configuration and Layout Persistence
 - The current `preferences.xml` configuration version is 7. Version 6 introduced optional managed leaf-column widths below `guiOptions`, identified by stable table and column IDs. Parent-column widths remain derived from their leaf columns.
 - `GUIstationMapClusteringEnabled` is a layout preference below `guiOptions`. It defaults to `true`, is selectively autosaved and controls only screen-based clustering of nearby map markers. Missing or malformed values retain the enabled default for backward compatibility.
 - Stored widths take precedence. Without a usable entry, a managed column is sized once when meaningful table data first becomes available. Message and similar free-text columns use a flexible initial width instead of following the longest value.
 - Main-window and separate-monitor DXCluster/QSO tables use distinct layout IDs even though they share the underlying message stores.
 - Window sizes and positions, relevant divider positions and managed column widths are selectively autosaved after a short debounce. A pending write is flushed during application shutdown.
 - Selective layout writes update the XML already on disk, preserve unknown XML nodes and must not persist unconfirmed functional settings from the current UI. **Save Settings** remains the full settings writer and includes the current layout.
 - Full and selective writes are synchronized and replace `preferences.xml` atomically. Missing, unknown or malformed width entries do not prevent loading and fall back to initial sizing.
 - Older configuration files require no migration. Older KST4Contest versions can ignore the additional elements; a complete rewrite by such a version may discard column widths without invalidating the remaining file.
 ## External Interfaces
 Treat current implementation/tests and authoritative upstream documentation as source of truth before modifying any interface.
@@ -65,10 +77,57 @@ Known integration areas include:
 CR/LF framing, XML framing, ports/transports, callsign normalization and frequency formatting are protocol behaviour and must not be changed as incidental cleanup.
 ### Local DX Cluster output
 - Local spots use a fixed 75-character, DXSpider-compatible payload line followed by two BEL characters and CRLF.
 - The DX callsign begins in column 27 and occupies up to 12 characters. The 30-character comment begins in column 40, and the five-character UTC time begins in column 71.
 - Spotter and frequency padding is calculated dynamically so frequencies from 50 MHz through 24 GHz do not shift the following fields.
 - Comments are padded or truncated to exactly 30 characters. Automatic AirScout comments retain the locator first and use the compact form `JO51HK AP 1m/100%;4m/75%`.
 - A DX callsign longer than 12 characters is rejected and logged rather than truncated.
 - Trigger conditions, QRG recognition and normalisation, login, keepalive, multi-client delivery and the local-only trust boundary remain separate from line formatting.
 ### Logging and Worked-state persistence
 - The Simplelogfile interpreter reads the selected text file after connection startup and then once per minute using a fixed built-in callsign pattern.
 - Simplelogfile callsigns are normalized to base callsigns and set only the global Worked state for every active variant. They do not create per-band Worked or grid-square state.
 - Simplelogfile-derived Worked state is not persisted in SQLite. The selected file is the durable source and is read again in each application session.
 - The interpreter only adds positive runtime marks. It does not remove existing marks during the current session and does not reset automatically when a new contest starts. A database reset does not modify the file; callsigns contained in it are marked as worked again during the next periodic evaluation.
 - A missing selected file is created. Read, path and creation failures are contained so the periodic timer remains alive; successful creation triggers a one-time, non-blocking UI notice with the exact path and setup/contest checks.
 - Network-derived and manually assigned Worked, NOT-QRV and worked-grid state continues to use SQLite with its established lifetime and reset behaviour.
 - Each completed initial ON4KST user list loads one SQLite Worked/NOT-QRV snapshot. `ChatController` applies that snapshot by normalized base callsign to every new category and suffix variant before the completed category is published. The same event-driven path runs again after a reconnect; startup synchronization does not depend on a fixed-delay timer.
 - Automatic QRG updates require both an enabled source and valid incoming `RadioInfo` or Win-Test `STATUS` data. Merely enabling a source does not provide or validate a current QRG.
 - UCXLog-compatible QSO packets and Win-Test `ADDQSO` packets are converted into one validated external-QSO state. Logger-specific numeric, metre and centimetre values and Win-Test band IDs are normalised once; the resolved band is then the sole source for per-band Worked and worked-grid state.
 - A missing or unknown logger band sets only the global Worked state. Worked-grid state requires both a recognised project band and a valid locator; no band or locator is inferred. Packets without a usable callsign are discarded without terminating the listener.
 - External logger threads do not read or mutate the JavaFX user-list projection. `ChatController` applies global and per-band Worked state to every active variant of the base callsign on the JavaFX Application Thread before evaluating a band-upgrade notice.
 - The established Win-Test handling for 24, 47 and 76 GHz remains unchanged. Their Worked flags are retained, while only frequencies represented by the project `Band` model can create worked-grid state.
 ### Win-Test log recovery
 - Win-Test only broadcasts new QSOs. A listener started later never sees the earlier ones, so KST4Contest pulls them with the Win-Test `IHAVE` / `NEEDQSO` protocol, ported from the wtKST `WtLogSync` implementation. The answers are ordinary `ADDQSO` packets and reuse the established Worked path; the recovery itself never touches database or UI.
 - The recovery is not configurable. It is bound to the existing Win-Test network listener, runs automatically once a station is detected through `HELLO` or `STATUS`, and stays active so gaps caused by lost broadcasts are refetched.
 - The station-name filter remains a QRG-sync setting. Log recovery covers every station in the network, because each band station of a multi-station setup keeps its own log and contributes per-band Worked state.
 - A QSO is identified by `StationName@LogUniqueID` plus the Win-Test QSO number. That identity deduplicates the answers of overlapping requests, so a recovered log is written once instead of once per resend.
 - Win-Test framing must be resolved on the raw datagram bytes: the checksum byte is not valid ASCII and would otherwise corrupt the trailing fields, which carry the log ID of `ADDQSO` and the run-length inventory of `IHAVE`. A broken checksum discards `IHAVE` only; the established handling of the other message types is unchanged and still does not verify checksums.
 - Win-Test answers broadcasts only; an identical unicast request to the same station stays unanswered (verified against Win-Test). Outgoing Win-Test packets therefore derive their broadcast address from the source address of received Win-Test packets, with the configured address as fallback for a station behind a router. A configured address pointing at a non-existent network raises no send error, so it silently disabled both log recovery and SKED handover before. Only genuine Win-Test message types update that address; internal control packets such as the poison pill must not redirect outgoing traffic.
 - `IHAVE` inventories are run-length encoded and may be split, so the announced first row is honoured instead of assuming that an inventory starts at QSO number one. A station that never sends a usable inventory is served by a blind block fallback starting at QSO number one.
 ### Terrain data providers
 - The active terrain profile provider is Open-Meteo using Copernicus GLO-90 data.
 - `OfflineDemImportService` only prepares a local directory and copies manually selected Copernicus GLO-30 GeoTIFF files into it. Importing files does not activate an offline provider or change the active calculation chain.
 ### ON4KST session and authentication
 - One KST4Contest connection authenticates one ON4KST TCP session with one local login callsign and one password.
 - The TCP session uses one common locator for both categories; the locator is not part of authentication.
 - The primary category is part of the initial login. A distinct second category is added to the same session through ON4KST Single Sign-on; it must not create a second TCP connection or local login.
 - **Name in Chat** is a visible category-specific name field, not a login callsign or message destination. Private messages to the local station are addressed to the local login callsign.
 - The visible **Name in Chat** field, message context, QRG and beacon configuration remain category-specific.
 ### ON4KST session liveness
 - After 90 seconds without inbound data, the application keeps the established empty CRLF heartbeat.
- At about 180 seconds of inbound idle time, the TCP session sends one `RDXQ|<main chat id>|` probe. The probe state belongs to the session, so a two-category login still sends only one probe per idle phase.
+- At about 180 seconds of inbound idle time, the TCP session sends one `RDXQ|<main chat id>|` probe. The probe state belongs to the session, so a two-category session still sends only one probe per idle phase.
 - Any subsequent inbound server frame confirms the probe. `DXQ` is accepted as the expected internal response and is not published as chat content.
 - If no inbound frame arrives by about 210 seconds, the existing reconnect flow remains responsible for replacing the session.
 - Probe diagnostics contain the session id, main category, opcode and timing only. They must not include credentials, complete server frames or normal chat messages.
@@ -78,6 +137,8 @@ CR/LF framing, XML framing, ports/transports, callsign normalization and frequen
 - Contest operating speed and low-friction interaction are primary goals.
 - Incidental code changes must not unexpectedly change selection, focus, sorting, tab state, map zoom or prefilled text.
 - Map reset clears the selected target without changing zoom unless explicitly redesigned.
 - **Group nearby stations** re-renders only the existing station-marker layer from JavaScript `stationData`. It must not reload the WebView, tiles or station data, request a new controller snapshot, or change zoom, viewport or selection.
 - Base-callsign aggregation into one geographical marker happens before screen-based clustering. Disabling clustering displays each resulting positionable map station individually but never splits active variants of the same normalised base callsign into separate geographical markers.
 - Station selection preserves the established `/cq callsign` prefill behaviour.
 - Sending without an explicitly selected send category preserves the established Main-category fallback unless explicitly changed.
@@ -111,6 +172,10 @@ The repository contains the KST4Contest website under `website/`, published sepa
 Current website/deployment scripts and update-feed behaviour must be inspected before changes; do not rely on historical assumptions.
 - `APPLICATION_CURRENT_VERSION` is the user-visible semantic version and must use the dotted `major.minor.patch` form. `APPLICATION_CURRENTVERSIONNUMBER` is retained only for older feeds and encodes patch releases by appending the patch digit, for example `1.43.1` as `1.431`.
 - The tagged-release workflow creates the GitHub Release before building the website update feed. This ordering is required because `versionInfo.js` reads the published release body through the GitHub Releases API.
 - After publication, the workflow tests and builds the website, validates the expected Stable version, attaches `kst4ContestVersionInfo.xml` to the release and uploads the complete website build as a workflow artifact.
 ## Important Decisions and Workarounds
 - Preserve full callsign/category identity while applying base-call normalisation only to specifically defined features.
@@ -136,6 +201,7 @@ Before implementing planned items, re-check current decisions and obtain a fresh
 - Historical project context is useful but may be stale; current code/tests win.
 - External service/API behaviour must be verified against current upstream documentation when uncertain.
 - Screenshots in manuals/website may need targeted replacement after visible UI changes; never fabricate them.
 - `station_map_path_analysis.png` and `station_map_reset.png` predate the **Group nearby stations** checkbox in the map header. Replace them with current screenshots when suitable source images are available; the website reuses `station_map_path_analysis.png` through `/manual/assets/`.
 ## Recent Significant Changes
@@ -2,7 +2,7 @@
 > 🇬🇧 [English version](en-AirScout-Integration) | 🇩🇪 Du liest gerade die deutsche Version
-AirScout (von DL2ALF) ist ein Programm zur Erkennung von Flugzeugen für den Aircraft-Scatter-Betrieb. KST4Contest ist eng mit AirScout integriert und zeigt reflektierbare Flugzeuge direkt in der Benutzerliste an.
+AirScout (von DL2ALF) berechnet Aircraft-Scatter-Gelegenheiten anhand aktueller Flugzeugpositionen. KST4Contest übernimmt diese Ergebnisse und zeigt für die jeweilige Gegenstation geeignete Flugzeuge direkt in der Benutzerliste an.
 > **Aircraft Scatter** ermöglicht sehr weitreichende Verbindungen auf VHF und höher – auch für Stationen mit geringer Höhe über NN oder ungünstigen topografischen Verhältnissen.
@@ -15,9 +15,9 @@ Download von AirScout:
 ---
-## Flugzeugdaten-Feeds (ADSB)
+## Flugzeugdaten-Feeds (ADS-B)
-Öffentliche Flugzeugdaten-Feeds im Internet sind oft unzuverlässig und begrenzt nutzbar. Eine empfohlene Alternative bietet **OV3T (Thomas)** mit einem dedizierten ADSB-Feed-Dienst:
+Öffentliche Flugzeugdaten-Feeds im Internet sind oft unzuverlässig und nur eingeschränkt nutzbar. Eine empfohlene Alternative bietet **OV3T (Thomas)** mit einem dedizierten ADS-B-Feed-Dienst:
 - https://airscatter.dk/
 - https://www.facebook.com/groups/825093981868542
@@ -28,7 +28,7 @@ Für diesen Dienst ist ein Account erforderlich. Bitte eine Spende für Thomas i
 ## AirScout einrichten
-### Schritt 1: ADSB-Feed in AirScout konfigurieren
+### Schritt 1: ADS-B-Feed in AirScout konfigurieren
 1. AirScout starten.
 2. In den AirScout-Einstellungen den OV3T-Feed-Account eintragen (Benutzername, Passwort, URL).
@@ -85,32 +85,40 @@ Andernfalls kann es zu fehlerhaften AP-Daten kommen.
 ## AP-Spalte in der Benutzerliste
-Nach der Einrichtung erscheint in der Benutzerliste eine **AP-Spalte** mit bis zu zwei reflektierbaren Flugzeugen pro Station.
+Nach der Einrichtung erscheint in der Benutzerliste eine **AP-Spalte**. Sie zeigt für jede Station die Ankunftszeit und das von AirScout berechnete Reflexionspotenzial der ersten beiden geeigneten Flugzeuge.
 Beispiel-Darstellung:
 | Station | AP-Info |
 |---|---|
-| DF9QX | 2 Planes: 0 min / 0 min, je 100% |
+| DF9QX | 0 (100 %) / 0 (100 %) |
-| F5DYD | 2 Planes: 14 min / 31 min, je 50% |
+| F5DYD | 14 (50 %) / 31 (50 %) |
 Die Zahl vor der Klammer gibt die verbleibenden Minuten bis zur berechneten Gelegenheit an. Die Prozentzahl beschreibt das von AirScout gemeldete Reflexionspotenzial. Sie ist keine QSO-Wahrscheinlichkeit.
 Die AP-Informationen sind auch im **Privatnachrichten-Fenster** verfügbar.
-Die Prozentzahl gibt das Reflexionspotenzial an (Größe des Flugzeugs, Höhe, Entfernung).
+## Einfluss auf Priority Score und Timeline
 Mindestens ein von AirScout als erreichbar gemeldetes Flugzeug erhöht den Priority Score der Station. Eine unmittelbar bevorstehende Gelegenheit in null, einer oder zwei Minuten wird zusätzlich zeitabhängig gewichtet. AirScout ist dabei nur ein Faktor neben Worked-Status, verfügbaren Bändern, QRB, Antennenrichtung, Chat-Aktivität und Skeds.
 Die AP- und Sked-Timeline verwendet den Priority Score zur Auswahl interessanter Stationen und ordnet die nächste geeignete Aircraft-Scatter-Gelegenheit zeitlich ein. Das Reflexionspotenzial bestimmt zusätzlich die Darstellung des AP-Symbols. Die Timeline bleibt eine Vorschau; sie garantiert kein QSO.
 ---
 ## AP-Variablen in Nachrichten
-Die Flugzeugdaten können direkt in Nachrichten eingefügt werden:
+Die Flugzeugdaten der ausgewählten Station können direkt in Shortcuts, Snippets und andere stationsbezogene Nachrichten eingefügt werden:
 - `FIRSTAP` → z. B. `a very big AP in 1 min`
 - `SECONDAP` → z. B. `Next big AP in 9 min`
 Details: [Makros und Variablen](de-Makros-und-Variablen#variablen)
 Da die Werte eine ausgewählte Gegenstation benötigen, stehen `FIRSTAP` und `SECONDAP` nicht als globale Beacon-Variablen zur Verfügung.
 ---
 ## „Show Path in AirScout"-Button
-In der Benutzerliste gibt es einen Button mit einem Pfeil, der die Richtung (QTF) zur ausgewählten Station anzeigt. Ein Klick maximiert AirScout und zeigt den Pfad mit reflektierbaren Flugzeugen zum ausgewählten Gesprächspartner.
+In der Benutzerliste gibt es einen Button mit einem Pfeil, der die Richtung (QTF) zur ausgewählten Station anzeigt. Ein Klick maximiert das externe AirScout-Fenster und lässt dort den Pfad zur ausgewählten Gegenstation mit den berechneten Aircraft-Scatter-Gelegenheiten anzeigen. Die Schaltfläche startet keine eigene Gelände- oder Ausbreitungsberechnung in KST4Contest.
@@ -4,7 +4,7 @@
 ## Verbinden mit dem Chat
-Vor dem ersten Verbindungsaufbau müssen im Einstellungsfenster mindestens Rufzeichen, Passwort, Locator und primäre Chat-Kategorie konfiguriert werden. Soll zusätzlich eine zweite Kategorie verwendet werden, muss auch deren Login aktiviert und vollständig eingerichtet sein.
+Vor dem ersten Verbindungsaufbau müssen im Einstellungsfenster das lokale Login-Rufzeichen und Passwort, der gemeinsame Locator der TCP-Sitzung sowie die primäre Chat-Kategorie konfiguriert werden. Soll zusätzlich eine zweite Kategorie verwendet werden, wird sie dort aktiviert und ausgewählt. KST4Contest meldet sich einmal an und ergänzt die zweite Kategorie per Single Sign-on innerhalb derselben TCP-Sitzung.
 Die Verbindung kann auf zwei Wegen aufgebaut werden:
@@ -54,7 +54,7 @@ Beide Hinweise blinken ungefähr zwölf Sekunden und verschwinden anschließend
 ### PM-Fenster (oben links)
-Das PM-Fenster zeigt die an die eigenen Chat-Logins gerichteten Privatnachrichten und die zugehörigen ausgehenden Antworten.
+Das PM-Fenster zeigt die an das lokale Login-Rufzeichen adressierten Privatnachrichten und die zugehörigen ausgehenden Antworten.
 Nicht selbst gesendete Nachrichten erscheinen dort zusätzlich, wenn ihr Text ohne Beachtung der Groß- und Kleinschreibung das konfigurierte eigene Login-Rufzeichen enthält. Das gilt für öffentliche Nachrichten an `ALL` ebenso wie für gerichtete Nachrichten zwischen anderen Chatteilnehmern. Gerade im zweiten Fall lässt sich dieses PM-Catching flapsig als **„Lästererkennung“** bezeichnen.
@@ -152,7 +152,15 @@ Der Wert beeinflusst unter anderem:
 ---
-## Nachrichtentabellen
+## Tabellenbreiten und gekürzte Zellinhalte
 Beim ersten brauchbaren Datenbestand richtet KST4Contest die Spalten der Benutzerliste, der Nachrichtenansichten, der DXCluster- und QSO-Tabellen sowie der Worked-Datenbank einmalig nach Überschrift und vorhandenem Inhalt aus. Bereits gespeicherte Breiten haben Vorrang. **Name**, **AP** und **NOT QRV @** werden dabei begrenzt, damit einzelne lange Werte nicht den restlichen Tabellenbereich verdrängen. **Message** und vergleichbare Freitextspalten bleiben flexibel und richten sich nicht nach der längsten Nachricht.
 Manuell geänderte Spaltenbreiten werden automatisch gespeichert und beim nächsten Start wiederhergestellt. Spätere Nachrichten oder Stationsaktualisierungen überschreiben diese Auswahl nicht.
 Passt ein normaler Textwert nicht vollständig in seine Zelle, zeigt ein Tooltip den vollständigen Wert. Der Tooltip erscheint nur bei tatsächlich gekürztem Text. Funktionale Tooltips, etwa für QRA-, Worked- oder Bandzustände, bleiben erhalten; bei gekürztem Zelltext stehen Volltext und Erklärung gemeinsam im Tooltip.
 ### Nachrichtentext und Links
 KST4Contest zeigt Nachrichtentexte bewusst einzeilig an. So bleiben auch bei hohem Chat-Aufkommen viele Einträge gleichzeitig sichtbar. Der Nachteil liegt auf der Hand: Bei einer schmalen **Message**-Spalte passt nicht jede Nachricht vollständig in die Zeile.
@@ -327,7 +335,11 @@ Ein einzelner Stationsmarker kann direkt angeklickt werden. KST4Contest:
 3. aktualisiert den **Further Info**-Bereich und
 4. bereitet das vollständige sichtbare Rufzeichen als `/cq`-Empfänger vor.
-Marker, die bei der aktuellen Zoomstufe zu dicht beieinanderliegen, werden als Cluster mit einer Stationsanzahl dargestellt. Ein Klick auf einen Cluster vergrößert den betreffenden Kartenausschnitt. Erst ein anschließend sichtbarer einzelner Marker wählt eine konkrete Station aus.
+Ist **Group nearby stations** ausgewählt, werden Marker, die bei niedrigen Zoomstufen zu dicht beieinanderliegen, als Cluster mit einer Stationsanzahl dargestellt. Ein Klick auf einen Cluster vergrößert den betreffenden Kartenausschnitt. Erst ein anschließend sichtbarer einzelner Marker wählt eine konkrete Station aus. Wird die Checkbox ausgeschaltet, zeigt die Karte unabhängig von der Zoomstufe alle positionierbaren Stationen als einzelne Marker.
 Das Umschalten wirkt sofort und verändert weder Zoom noch Kartenausschnitt oder Stationsauswahl. Die Einstellung wird automatisch gespeichert und beim nächsten Programmstart wiederhergestellt. Ohne gespeicherte Einstellung bleibt **Group nearby stations** ausgewählt, damit bestehende Installationen zunächst das bisherige Verhalten behalten.
 Der Schalter betrifft nur die räumlichen Cluster auf dem Bildschirm. Aktive Chatvarianten desselben normalisierten Basisrufzeichens können weiterhin einen gemeinsamen geografischen Marker verwenden und bleiben unabhängig davon getrennte Nachrichtenziele.
 Die Kopfzeile ergänzt bei ausgewählter Station:
@@ -432,7 +444,7 @@ Zusätzlich öffnet KST4Contest das Fenster **Cluster & QSO of the other**. Es z
 ![Separates Cluster- und QSO-Monitorfenster](cluster_qso_monitor.png)
-Die Position des vertikalen Dividers sowie die Fenstergröße werden zusammen mit den übrigen UI-Einstellungen gespeichert. Nach einer Änderung **Save Settings** verwenden.
+Die Position des vertikalen Dividers sowie die Fenstergröße werden automatisch gespeichert. Die DXCluster- und QSO-Tabellen besitzen hier eigene Spaltenbreiten; Änderungen im Monitorfenster verändern daher nicht das Tabellenlayout der Hauptfenster-Tabs.
 Das Fenster lässt sich über das Menü aus- und wieder einblenden:
@@ -478,13 +490,13 @@ Die serverbezogenen Funktionen sind nur bei vollständig aufgebauter ON4KST-Verb
 ## Fenstergrößen und Divider
-Beim Klick auf **Save Settings** speichert KST4Contest die Größen der Programmfenster und die Positionen der relevanten Divider in der Konfigurationsdatei. Diese Werte werden beim nächsten Programmstart wiederverwendet.
+KST4Contest speichert Größen und Positionen der Programmfenster, die relevanten Divider sowie manuell geänderte Tabellenbreiten automatisch nach einer kurzen Verzögerung in der Konfigurationsdatei. Ein ausstehender Layoutstand wird beim Programmende noch geschrieben. **Save Settings** ist dafür nicht erforderlich, speichert aber weiterhin den vollständigen aktuellen Stand einschließlich Layout.
 Das Hauptfenster wird beim Start zusätzlich gegen den sichtbaren Bereich des primären Bildschirms geprüft. Ist die gespeicherte Größe zu groß, verkleinert und verschiebt KST4Contest das Fenster so, dass es wieder erreichbar bleibt. Die genaue Herleitung ist unter [Bildschirmgerechte Größe des Hauptfensters](de-Funktionen#bildschirmgerechte-größe-des-hauptfensters-ab-v141) beschrieben.
-Für die übrigen Programmfenster gilt diese zusätzliche Größenbegrenzung derzeit nicht. Wird beispielsweise das separate Monitorfenster nach einem Wechsel auf einen kleineren Bildschirm zu groß dargestellt, muss seine Größe manuell korrigiert und anschließend erneut mit **Save Settings** gespeichert werden.
+Für die übrigen Programmfenster gilt diese zusätzliche Größenbegrenzung derzeit nicht. Wird beispielsweise das separate Monitorfenster nach einem Wechsel auf einen kleineren Bildschirm zu groß dargestellt, genügt eine manuelle Korrektur; die neue Größe wird automatisch gespeichert.
-Bei einer ungünstigen Aufteilung sollten zuerst die Divider an eine brauchbare Position verschoben und die Einstellungen erneut gespeichert werden. Das Löschen der Konfigurationsdatei setzt zwar die UI-Werte zurück, entfernt aber auch die übrigen gespeicherten Programmeinstellungen und sollte deshalb nur verwendet werden, wenn sich die Oberfläche auf anderem Weg nicht mehr herstellen lässt.
+Bei einer ungünstigen Aufteilung sollten zuerst die Divider und Spaltenbreiten wieder an brauchbare Positionen verschoben werden. Das Löschen der Konfigurationsdatei setzt zwar die UI-Werte zurück, entfernt aber auch die übrigen gespeicherten Programmeinstellungen und sollte deshalb nur verwendet werden, wenn sich die Oberfläche auf anderem Weg nicht mehr herstellen lässt.
 ---
@@ -8,6 +8,72 @@ Die veröffentlichten Stable-Versionen und ihre Programmpakete stehen unter [Git
 ---
 ## v1.43.1 (2026-09-03)
 **Korrigierte Versionsmetadaten**
 v1.43.1 enthält dieselben funktionalen Änderungen wie v1.43.0. Korrigiert wurden die Anwendungs- und Build-Metadaten für Anzeige, ON4KST-Kennung und Update-Vergleich. Ein Teil der Metadaten des ersten v1.43.0-Pakets wies den Build noch als Version 1.42 aus.
 ### Behoben
 - **Einheitliche semantische Version:** Die sichtbare Anwendungsversion verwendet jetzt vollständig `1.43.1`. Der kompakte Wert `1.431` bleibt ausschließlich im veralteten numerischen Feld für die Kompatibilität mit älteren Update-Feeds erhalten.
 - **Update-Feed im Tagged-Release-Workflow:** Website-Build, Prüfung des Versionsfeeds und Upload der Artefakte laufen jetzt tatsächlich nach der Veröffentlichung des GitHub Releases. Diese Schritte waren zuvor versehentlich in die Artefaktliste der Release-Action eingerückt und wurden deshalb übersprungen.
 Wer v1.43.0 installiert hat, sollte v1.43.1 verwenden. Die Funktionen bleiben unverändert; korrigiert werden nur die Versionsmetadaten und der Release-Workflow.
 Die korrigierte Version ist als [Release v1.43.1](https://github.com/praktimarc/kst4contest/releases/tag/v1.43.1) verfügbar.
 ---
 ## v1.43.0 (2026-09-03)
 **Zuverlässigere Log-Synchronisation, gespeicherte Tabellenlayouts und bessere DX-Cluster-Kompatibilität**
 v1.43 konzentriert sich auf die zuverlässige Verarbeitung externer Logdaten und den stabilen Betrieb während längerer Conteste. Hinzu kommen praktische Einstellmöglichkeiten für Tabellenlayouts und die Stationsgruppierung auf der Karte.
 ### Neu
 - **Optionale Kartencluster:** **Group nearby stations** schaltet die räumliche Gruppierung bei niedrigen Zoomstufen unmittelbar ein oder aus. Die gespeicherte Auswahl verändert weder Kartenausschnitt noch Stationsauswahl; die Zusammenfassung aktiver Varianten desselben Basisrufzeichens bleibt davon unabhängig. Damit ist [Issue #79](https://github.com/praktimarc/kst4contest/issues/79) umgesetzt.
 - **Tabellenlayout automatisch gesichert:** Tabellen erhalten beim ersten brauchbaren Inhalt sinnvolle Breiten. Manuell geänderte Spaltenbreiten, Fenstergrößen und relevante Divider werden nach kurzer Verzögerung in `preferences.xml` geschrieben. Haupt- und Monitorfenster behalten getrennte Layouts für DXCluster und QSO of the other.
 - **Tooltips für gekürzte Tabellenwerte:** Normale Tabellenzellen zeigen ihren vollständigen Inhalt, wenn die sichtbare Spalte zu schmal ist. Funktionale Tooltips und anklickbare Links bleiben davon unberührt.
 - **Hinweis bei neu angelegtem Simplelogfile:** Fehlt die ausgewählte Datei, legt KST4Contest sie an und zeigt einen Hinweis mit Dateipfad, konkretem Testablauf und Link zum passenden Abschnitt des Handbuchs.
 ### Geändert
 - **Robuste Simplelogfile-Auswertung:** Die ausgewählte Datei wird einmal pro Minute ausgewertet und nach jedem Durchlauf geschlossen, damit das Logprogramm sie ersetzen oder rotieren kann. Erkannte Rufzeichen setzen den globalen Worked-Status für alle aktiven Suffixvarianten des Basisrufzeichens. Bei deaktivierter Funktion findet kein Dateizugriff statt; Lese- oder Erstellungsfehler beenden die periodische Aufgabe nicht mehr.
 - **Einheitliche Bandwerte externer Logger:** UCXLog-kompatible Pakete und Win-Test-Ereignisse verwenden eine gemeinsame Bandnormalisierung. Numerische Werte, Meter- und Zentimeterangaben sowie die vorhandenen Win-Test-IDs setzen damit dieselben Worked-Markierungen und Worked-Großfelder. Insbesondere `2320`, `5760` und `10368` werden zuverlässig verarbeitet; bei fehlendem oder unbekanntem Band wird nur der globale Worked-Status gesetzt.
 - **Kompakte vollständige Frequenzen erkannt:** Vollständige Frequenzangaben ohne Dezimaltrenner werden auf allen unterstützten Bändern akzeptiert; die letzten drei Ziffern bilden den kHz-Anteil. Nackte dreistellige Zahlen benötigen weiterhin einen erkennbaren Frequenzkontext, damit Signalrapporte und andere Zahlen nicht als QRG behandelt werden.
 - **DXSpider-kompatibles Spotformat:** Lokale DX-Cluster-Spots verwenden eine feste 75-Zeichen-Nutzzeile mit dem DX-Rufzeichen ab Spalte 27, einem 30 Zeichen breiten Kommentarfeld und der UTC-Zeit ab Spalte 71. Das Format bleibt bis 24 GHz stabil. Überlange DX-Rufzeichen werden verworfen und protokolliert, statt unbemerkt abgeschnitten zu werden. Damit ist [Issue #86](https://github.com/praktimarc/kst4contest/issues/86) behoben.
 - **Aktive ON4KST-Verbindungsprüfung:** Ein ruhiger Chatserver wird mit einer expliziten, sitzungsweiten Abfrage geprüft, bevor die Verbindung als unterbrochen gilt. Heartbeat und Prüftelegramme behalten das erforderliche CR/LF-Framing.
 - **Zuverlässige Altersmarkierung privater Nachrichten:** Eingehende Privatnachrichten verwenden bis zu fünf Minuten lang die definierten grünen Altersstufen. Eigene Nachrichten behalten ihre separate Darstellung; leere oder wiederverwendete Tabellenzeilen kehren zum normalen Design zurück und behalten keine veraltete Hervorhebung.
 ### Behoben
 - **Worked-Status nach dem Login:** Persistierte SQLite-Informationen werden vor der Veröffentlichung jeder initialen ON4KST-Benutzerliste geladen und angewendet. Erneute Verbindungen, beide Kategorien und alle aktiven Varianten eines Basisrufzeichens starten dadurch mit dem richtigen Status. Damit ist [Issue #85](https://github.com/praktimarc/kst4contest/issues/85) behoben.
 - **Fehlerhafte Trennung bei ruhigem Server:** Eine gültige ON4KST-Verbindung wird nicht mehr beendet, nur weil der Server gerade keine Aktivitätszeilen überträgt.
 ### Dokumentation und Auslieferung
 - Das deutsche und englische Handbuch wurden mit der Implementierung abgeglichen und überarbeitet. Ein neues Kapitel zum Contest-Workflow verbindet die einzelnen Funktionen zu einem praktischen Betriebsablauf; außerdem wurden die Abschnitte zu Dual Chat, Privatnachrichten, QRG-Synchronisation, Simplelogfile-Auswertung und Konfiguration präzisiert.
 - Die Website beschreibt Band- und Richtungsgelegenheiten, Stationskarte, QRG-Verarbeitung, Filter, globale Nachrichtenansichten, Privatnachrichten und Log-Synchronisation jetzt ausführlicher.
 - Die AUR-Paketdefinitionen wurden auf v1.43.0 aktualisiert.
 Die vollständige Funktionalität von v1.43.0 steht im [Release v1.43.0](https://github.com/praktimarc/kst4contest/releases/tag/v1.43.0) bereit. Wegen der inkonsistenten eingebetteten Versionsmetadaten ist v1.43.1 der empfohlene Paketstand.
 ---
 ## v1.42.0 (2026-08-22)
 **Gemeinsamer Bandkontext, sitzungsbasierte ON4KST-Verbindung und signierte macOS-Pakete**
@@ -34,6 +100,8 @@ v1.42 führt mehrere bisher getrennte Auswertungen zusammen. Bandinformationen,
 - **Manuelle QTF-Eingabe:** Die aktuelle Antennenrichtung kann auch ohne PSTRotator direkt in KST4Contest geändert werden.
 - **Nachrichtenvariable `MYQTF`:** Die aktuelle Antennenrichtung kann als numerischer Winkel in Grad in Shortcuts, Snippets und andere unterstützte Nachrichtentexte eingesetzt werden.
 - **Filter zurücksetzen:** Ein eigener Reset-Button entfernt die aktiven Filterprädikate der Benutzerliste zuverlässig.
 - **Kartencluster:** Räumlich dicht beieinanderliegende Stationen werden bei niedrigen Zoomstufen zusammengefasst. Die ausgewählte Station und relevante Richtungsgelegenheiten bleiben einzeln sichtbar.
@@ -80,6 +148,8 @@ v1.42 führt mehrere bisher getrennte Auswertungen zusammen. Bandinformationen,
 - **DXLog-Gesamtlog übernommen:** Der UCXLog-kompatible UDP-Listener verarbeitet neben `contactinfo` auch `contactreplace`. Dadurch kann ein von DXLog.net als vollständiges Log ausgesendeter Datenbestand eingelesen werden.
 - **Automatische QRG-Übernahme abgesichert:** `MYQRG` wird nur von einer aktivierten Schnittstelle aktualisiert, die tatsächlich gültige `RadioInfo`- beziehungsweise Win-Test-`STATUS`-Pakete liefert. Eine aktivierte, aber nicht liefernde Quelle ersetzt die notwendige Funktionsprüfung oder manuelle QRG-Pflege nicht.
 - **Versionserkennung verbessert:** Versionsnummern werden semantisch verglichen, damit beispielsweise Patch-Versionen und Nightly-Stände nicht mehr durch eine einfache Fließkommazahl falsch eingeordnet werden.
 ### Behoben
@@ -411,7 +481,6 @@ Erste öffentlich veröffentlichte Version. Grundfunktionen:
 ## Geplante Features
 - `MYQTF`-Variable (eigene Antennenrichtung als Text)
 - ~~Lebensdauer für den Worked-Status (automatisches Zurücksetzen)~~ ✅ **Umgesetzt in v1.40** (3-Tage-Lebensdauer, kein manuelles Zurücksetzen mehr nötig)
 - Filterung des „Cluster & QSO der anderen"-Fensters auf eigenes QTF
 - Weitere Topografie-basierte Berechnungen für die Richtungswarnung
@@ -67,6 +67,8 @@ Aktiviere nur die Schnittstellen, die tatsächlich verwendet und vorher getestet
 Ein Contest ist ein ungünstiger Zeitpunkt, um gleichzeitig die Funkbedingungen und eine erstmals aktivierte Netzwerkschnittstelle zu untersuchen.
 Beim Simplelogfile sollte vor jedem Contest geprüft werden, ob das Logprogramm die aktuelle Contestdatei an den in KST4Contest ausgewählten Pfad schreibt. Ein Test-QSO muss innerhalb einer Minute als global gearbeitet erscheinen. KST4Contest setzt die aus dieser Datei abgeleiteten Worked-Markierungen beim Contestwechsel nicht automatisch zurück.
 ---
 ## Grundablauf während des Contests
@@ -89,7 +91,7 @@ KST4Contest hält die benötigten Informationen zwischen diesen Schritten zusamm
 ## CQ-Betrieb
-Bei einer weitgehend festen CQ-QRG sollten `MYQRG` beziehungsweise `SECONDQRG` den tatsächlich verwendeten Frequenzen entsprechen. Eine aktivierte TRX-Synchronisation kann `MYQRG` automatisch aktualisieren. Ohne automatische Quelle muss der Wert von Hand gepflegt werden.
+Bei einer weitgehend festen CQ-QRG sollten `MYQRG` beziehungsweise `SECONDQRG` den tatsächlich verwendeten Frequenzen entsprechen. Eine aktivierte und tatsächlich liefernde TRX-Synchronisation kann `MYQRG` automatisch aktualisieren. Die Aktivierung allein reicht nicht: Vor dem Contest sollte mit einer realen Frequenzänderung geprüft werden, ob gültige Pakete ankommen. Ohne funktionierende automatische Quelle muss der Wert von Hand gepflegt werden.
 Der Beacon kann die aktuelle QRG, den Locator und die Antennenrichtung regelmäßig im Chat veröffentlichen. Seine Variablen werden bei jedem Sendedurchlauf erneut ausgewertet.
@@ -257,7 +259,7 @@ Eine weitere, besonders konsequente Betriebsweise nutzt die Stationskarte als ge
 Die Karte wird so zu einer räumlichen Liste der noch abzuarbeitenden Stationen. Dieser Ablauf ist optional. Er setzt eine zuverlässig eingerichtete Log-Synchronisation und DX-Cluster-Verbindung voraus und ist vor allem für Operatoren interessant, die den Contest bewusst auf diese geografische Weise strukturieren möchten.
-[G1YBB zeigt diesen Workflow im Video.](https://www.youtube.com/watch?v=BCNCjowPgec)
+[G1YBB zeigt diesen Workflow im Video.](https://www.youtube.com/watch?v=lMQZMiSHlUI)
 ---
@@ -163,7 +163,7 @@ Die Schaltfläche **Send test spot** erzeugt folgenden Testeintrag:
 ```text
 Spotted callsign: DO5AMF
-Comment: Testing DXC-Spot: Congrats, you donated $100!
+Comment: DXC test: You donated $100!
 Frequency: .300 des konfigurierten Fallback-Bandes
 ```
@@ -191,8 +191,18 @@ Ein Spot enthält:
 - den Locator,
 - die aktuelle UTC-Zeit.
 Die Nutzzeile folgt einem festen, DXSpider-kompatiblen 75-Zeichen-Format. Das DX-Rufzeichen beginnt in Spalte 27, das Kommentarfeld umfasst genau 30 Zeichen und die UTC-Zeit beginnt in Spalte 71. Kurze Kommentare werden mit Leerzeichen aufgefüllt, längere kontrolliert auf 30 Zeichen begrenzt. Unterschiedlich lange Spotter-Rufzeichen und Frequenzen bis 24 GHz verschieben die nachfolgenden Felder nicht.
 Das vollständige DX-Rufzeichen wird nicht abgeschnitten. Ist es länger als zwölf Zeichen, verwirft KST4Contest den Spot stattdessen kontrolliert und protokolliert den Grund.
 Bei automatisch erzeugten Richtungs-Spots kann KST4Contest bis zu zwei aktuelle AirScout-Einträge als zusätzliche AP-Information in den Kommentar aufnehmen. Fehlende AirScout-Daten verhindern den Spot nicht. Ein manuell über die Stationskarte ausgelöster Spot verwendet den Locator der ausgewählten Station ohne diese optionale Ergänzung.
 Ein kompakter Kommentar mit AirScout-Information sieht beispielsweise so aus:
 ```text
 JO51HK AP 1m/100%;4m/75%
 ```
 ---
 ## Wenn kein Spot erscheint
@@ -230,6 +240,24 @@ Prüfe zuerst, welche Frequenzen für die betreffende Station innerhalb der letz
 Ist kein aktueller Stationskontext vorhanden, prüfe die Auswahl unter **Fallback band for relative QRG detection**. Das Fallback wird nur benötigt, wenn sich das Band weder aus einer vollständigen Frequenz noch aus dem aktuellen Kontext des Absenders ergibt.
 ### Das Logprogramm läuft in einer eigenen Sandbox
 Ein Logprogramm, das als Flatpak oder über eine Wine-Umgebung wie Bottles gestartet wird, benutzt die Netzwerkrechte dieser Sandbox. Teilt die Sandbox das Netzwerk des Rechners nicht, ist `127.0.0.1` darin nicht das `127.0.0.1`, auf dem KST4Contest lauscht. Die Verbindung wird dann abgewiesen, obwohl KST4Contest den Port korrekt meldet.
 Bei einem Flatpak-Logprogramm lassen sich die Rechte so prüfen:
 ```bash
 flatpak info --show-permissions <Anwendungs-ID>
 ```
 Im Abschnitt `[Context]` muss `shared=network` stehen. Nachträglich vergeben lässt es sich mit:
 ```bash
 flatpak override --user --share=network <Anwendungs-ID>
 ```
 Das Gleiche gilt, wenn KST4Contest selbst als Flatpak läuft. Dessen veröffentlichtes Manifest enthält `--share=network` bereits, ein lauschender Port ist daher vom Rechner selbst und von anderen Anwendungen darauf erreichbar.
 ### Der Spot wird vom Logger ausgeblendet
 Verwende ein Spotter-Rufzeichen, das nicht mit dem eigenen Contest-Rufzeichen identisch ist. Abhängig vom Logger können eigene Spots gefiltert oder besonders behandelt werden.
@@ -84,13 +84,15 @@ KST4Contest wertet deshalb den Text jeder öffentlichen und gerichteten Chat-Nac
 | Schreibweise | Beispiel | Verarbeitung |
 |---|---|---|
-| Vollständige Frequenz | `144.210`, `432,088`, `10368.100` | Das Band ergibt sich direkt aus der Frequenz. |
+| Vollständige Frequenz | `144.210`, `432,088`, `144307`, `10368100` | Das Band ergibt sich direkt aus der Frequenz. |
 | Relative Frequenz mit Punkt oder Komma | `.210`, `,088` | Das Band wird aus dem Stationskontext oder dem konfigurierten Fallback ergänzt. |
 | Dreistellige Frequenz mit Textkontext | `qrg 210`, `freq is 210`, `on 210`, `210 MHz` | Die Zahl wird als relative Frequenz behandelt. |
 | Dreistellige Zahl ohne Frequenzkontext | `210`, `599`, `144` | Die Zahl wird absichtlich nicht als QRG übernommen. |
 Die letzte Einschränkung verhindert plausible, aber falsche Ergebnisse. Mit einem Fallback von `144 MHz` ließe sich ein Signalrapport `599` technisch problemlos zu `144.599 MHz` zusammensetzen. Das Ergebnis wäre formal gültig und fachlich trotzdem Unsinn.
 Eine vollständige Frequenz kann auch ohne Punkt oder Komma geschrieben sein. KST4Contest behandelt dabei die letzten drei Ziffern als kHz-Anteil: `144307` im Namensfeld wird zu `144.307 MHz`, `10368100` in einer öffentlichen oder gerichteten Chatnachricht zu `10368.100 MHz`. Der Wert wird nur übernommen, wenn die daraus entstehende Frequenz innerhalb eines unterstützten Bandbereichs liegt.
 ### Wie wird das Band einer relativen QRG bestimmt?
 KST4Contest verwendet folgende Reihenfolge:
@@ -136,7 +138,7 @@ Diese Trennung ist notwendig. Ein bereits gearbeitetes Rufzeichen kann auf einem
 Die [Log-Synchronisation](de-Log-Synchronisation) übernimmt neue QSOs aus dem Logprogramm. Welche Informationen dabei zur Verfügung stehen, hängt von der verwendeten Schnittstelle ab:
- Der dateibasierte Simplelogfile-Interpreter erkennt nur das Rufzeichen. Er kann deshalb lediglich den globalen Worked-Status setzen.
+- Der dateibasierte Simplelogfile-Interpreter liest die ausgewählte Textdatei einmal pro Minute mit einem festen Rufzeichenmuster. Treffer werden auf das Basisrufzeichen normalisiert und setzen für alle aktiven Varianten lediglich den globalen Worked-Status.
 - Die QSO-UDP-Schnittstellen und der Win-Test-Netzwerk-Listener können zusätzlich das Band übernehmen.
 - Enthält das Logpaket einen gültigen Locator, speichert KST4Contest außerdem das gearbeitete vierstellige Großfeld für dieses Band.
@@ -205,7 +207,9 @@ Im Klartext: Ein erkannter Hinweis bedeutet „wahrscheinlich auf diesem Band ak
 ### Speicherung und Lebensdauer
-Worked-, NOT-QRV- und Großfeldinformationen werden in der internen SQLite-Datenbank gespeichert und beim nächsten Start wieder geladen. Die Einträge laufen nach drei Tagen automatisch ab. Ein Reset vor jedem Contest ist deshalb normalerweise nicht erforderlich.
+Worked-, NOT-QRV- und Großfeldinformationen aus den Netzwerkschnittstellen sowie manuelle Markierungen werden in der internen SQLite-Datenbank gespeichert und beim nächsten Start wieder geladen. Die Einträge laufen nach drei Tagen automatisch ab. Ein Reset vor jedem Contest ist deshalb normalerweise nicht erforderlich.
 Simplelogfile-Treffer sind davon ausgenommen. Sie werden nicht in SQLite persistiert, sondern bei jedem Programmlauf aus der ausgewählten Datei abgeleitet. Die Datei ist damit die dauerhafte Quelle. Der Interpreter entfernt während der laufenden Sitzung keine bereits gesetzte Worked-Markierung und setzt den Zustand beim Wechsel zu einem neuen Contest nicht automatisch zurück. Ein manueller Datenbank-Reset verändert oder leert die Datei ebenfalls nicht. Darin enthaltene Rufzeichen werden bei der nächsten Auswertung innerhalb einer Minute erneut als gearbeitet markiert.
 Ein manueller Reset unter **Workedstn database** entfernt sämtliche Worked-Markierungen, NOT-QRV-Tags und gespeicherten Worked-Großfelder. Die bekannten Rufzeichenzeilen bleiben dabei in der Datenbank erhalten. Einzelheiten: [Worked Station Database Settings](de-Konfiguration#worked-station-database-settings-gearbeitete-stationen-datenbank).
@@ -308,7 +312,7 @@ Konfiguration, erkannte QRG-Anfragen und genaue Kategorienzuordnung: [Konfigurat
 ## Multi-Channel-Login (ab v1.26)
-Gleichzeitiger Login in **zwei Chat-Kategorien** (z. B. 144 MHz und 432 MHz). Beide Chats werden parallel überwacht.
+KST4Contest meldet sich mit einem lokalen Login-Rufzeichen und Passwort einmal bei ON4KST an. Ein gemeinsamer Locator gilt für die gesamte TCP-Sitzung. Eine zweite Chat-Kategorie (z. B. 144 MHz und 432 MHz) wird per Single Sign-on innerhalb derselben Sitzung ergänzt. Beide Kategorien werden parallel überwacht; das sichtbare kategoriebasierte Namensfeld, der Nachrichtenkontext, die QRG und der Beacon bleiben je Kategorie getrennt.
 ---
@@ -322,7 +326,7 @@ Die grüne Altersskala der Privatnachrichten bleibt in beiden Darstellungen erha
 ## Opposite Station Multi-Callsign Login-Tagging (ab v1.26)
-Unterstützung für Stationen, die mit mehreren Rufzeichen gleichzeitig im Chat aktiv sind (z. B. Expedition-Setups).
+Unterstützung für Gegenstationen, die mit mehreren vollständigen sichtbaren Rufzeichenvarianten gleichzeitig im Chat aktiv sind (z. B. Expedition-Setups). Vollständiges Rufzeichen und Chat-Kategorie bleiben getrennte Teilnehmeridentitäten; Worked-, Band- und Prioritätsdaten werden über das Basisrufzeichen gemeinsam ausgewertet.
 ---
@@ -438,7 +442,7 @@ Sniffed: (DN9APW-70 > 9A0BB-23) pse sked 19:30
 Das ist ein wichtiger Unterschied. Das Monitoring fasst die Varianten zusammen, damit keine Nachricht übersehen wird. Das Nachrichtenrouting fasst sie nicht zusammen, weil andernfalls nicht mehr eindeutig wäre, welcher Login tatsächlich angesprochen wurde.
-Das Basisrufzeichen wird außerdem unabhängig von der Chat-Kategorie ausgewertet. Ist KST4Contest gleichzeitig mit zwei Kategorien verbunden, gilt derselbe Monitoring-Eintrag für beide Nachrichtenströme. Die Kategorie der einzelnen Nachricht bleibt dabei erhalten.
+Das Basisrufzeichen wird außerdem unabhängig von der Chat-Kategorie ausgewertet. Sind in derselben ON4KST-Sitzung zwei Kategorien aktiv, gilt derselbe Monitoring-Eintrag für beide Nachrichtenströme. Die Kategorie der einzelnen Nachricht bleibt dabei erhalten.
 Erfasst werden:
@@ -521,7 +525,7 @@ UDP selbst bestätigt außerdem keine Paketzustellung. Bleibt die QTF unverände
 Im Klartext: KST4Contest liefert die Zielrichtung und verarbeitet die gemeldete Position. Die mechanische Realität bleibt Aufgabe des Rotators – und gelegentlich der Blick aus dem Fenster.
-Konfiguration und Portbelegung: [Konfiguration – PSTRotator-Einstellungen](de-Konfiguration#pstrotator-einstellungen-ab-v131-vollstaendig-konfigurierbar-ab-v140).
+Konfiguration und Portbelegung: [Konfiguration – PSTRotator-Einstellungen](de-Konfiguration#pstrotator-einstellungen-ab-v131-vollständig-konfigurierbar-ab-v140).
 ---
@@ -604,7 +608,7 @@ Die Bewertung wird für das normalisierte Basisrufzeichen vorgenommen. Ein Sked
 ### Wie werden mehrere SSIDs und Chat-Kategorien behandelt?
-Aktive Rufzeichen wie `9A0BB-2`, `9A0BB-70`, `9A0BB-23` und `9A0BB-13` bleiben getrennte Chatmember. Dadurch können Nachrichten weiterhin an das vollständige Rufzeichen und die richtige Chat-Kategorie adressiert werden.
+Aktive vollständige sichtbare Rufzeichenvarianten wie `9A0BB-2`, `9A0BB-70`, `9A0BB-23` und `9A0BB-13` bleiben getrennte Chatmember. Dadurch können Nachrichten weiterhin an das vollständige Rufzeichen und die richtige Chat-Kategorie adressiert werden.
 Worked-, Band-, NOT-QRV- und Score-Informationen beziehen sich dagegen auf das gemeinsame Basisrufzeichen `9A0BB`. Der Score wird deshalb einmal berechnet und auf alle aktiven Varianten übertragen. Die Benutzerliste kann mehrere getrennte Zeilen mit demselben Score enthalten; in der Prioritätsliste erscheint das Basisrufzeichen nur einmal.
@@ -703,7 +707,7 @@ Die Timeline ist eine Vorschau. AirScout-Daten können sich ändern, und ein ein
 KST4Contest kann wiederkehrende CQ-Nachrichten in den öffentlichen Chat senden. Der Beacon ist für längeres CQ-Rufen auf einer festen Frequenz gedacht: Die eigene QRG wird regelmäßig veröffentlicht, ohne dass derselbe Text von Hand wiederholt werden muss.
-Beide Chat-Kategorien verwenden ein gemeinsames Intervall, besitzen aber jeweils einen eigenen Aktivierungsschalter und Nachrichtentext. Der zweite Beacon wird nur gesendet, wenn auch der zweite Chat aktiviert und verbunden ist.
+Beide Chat-Kategorien verwenden ein gemeinsames Intervall, besitzen aber jeweils einen eigenen Aktivierungsschalter und Nachrichtentext. Der zweite Beacon wird nur gesendet, wenn die zweite Kategorie in derselben ON4KST-Sitzung aktiviert und vollständig synchronisiert ist.
 Globale Variablen wie `MYQRG`, `SECONDQRG`, `MYLOCATOR` oder `MYQTF` werden unmittelbar vor jeder Aussendung neu aufgelöst. Eine zwischenzeitlich vom Logprogramm aktualisierte QRG kann dadurch bereits im nächsten Beacon erscheinen.
@@ -718,7 +722,7 @@ Konfiguration, Timer-Verhalten und verfügbare Variablen: [Konfiguration – Bea
 ## Simplelogfile
-Details: [Log-Synchronisation](de-Log-Synchronisation#methode-1-universal-file-based-callsign-interpreter-simplelogfile).
+Der Simplelogfile-Interpreter liest einmal pro Minute Rufzeichen aus einer ausgewählten Textdatei. Fehlt die Datei, legt KST4Contest sie an und zeigt einen nicht blockierenden Hinweis mit Pfad, Funktionstest und Contestprüfung. Details: [Log-Synchronisation](de-Log-Synchronisation#methode-1-universal-file-based-callsign-interpreter-simplelogfile).
 ---
@@ -827,7 +831,11 @@ Die Bandangaben verwenden dieselbe Herleitung wie die Bandspalten, der Filter **
 Treffen mehrere Zustände gleichzeitig zu, hat die für den Betrieb wichtigere Markierung Vorrang. Eine ausgewählte Station bleibt deshalb orange; eine Richtungsgelegenheit wird grün dargestellt, auch wenn das Rufzeichen bereits gearbeitet wurde.
-Bei niedrigen Zoomstufen werden räumlich dicht beieinanderliegende Stationen zu einem Cluster zusammengefasst. Die Zahl im Cluster gibt die Anzahl der enthaltenen Stationen an. Ein Klick zoomt weiter hinein, wählt aber noch keine einzelne Station aus. Die aktuell ausgewählte Station und grün markierte Richtungsgelegenheiten bleiben auch bei niedriger Zoomstufe als einzelne Marker sichtbar.
+Mit der Checkbox **Group nearby stations** lässt sich die räumliche Gruppierung steuern. Ist sie ausgewählt, werden bei niedrigen Zoomstufen dicht beieinanderliegende Marker zu einem Bildschirm-Cluster zusammengefasst. Die Zahl im Cluster gibt die Anzahl der enthaltenen Stationen an. Ein Klick zoomt weiter hinein, wählt aber noch keine einzelne Station aus. Die aktuell ausgewählte Station und grün markierte Richtungsgelegenheiten bleiben auch bei niedriger Zoomstufe möglichst als einzelne Marker sichtbar.
 Ist **Group nearby stations** nicht ausgewählt, erscheinen alle positionierbaren Stationen unabhängig von der Zoomstufe als einzelne Marker. Die Änderung wirkt sofort, ohne Stationsdaten neu zu laden oder Zoom, Kartenausschnitt und Auswahl zu verändern. KST4Contest speichert die Einstellung automatisch und stellt sie beim nächsten Start wieder her. Bestehende Installationen beginnen mit aktivierter Gruppierung und behalten damit zunächst das bisherige Verhalten.
 Diese Bildschirm-Cluster sind nicht mit der Zusammenfassung von Chatvarianten zu verwechseln. Mehrere aktive Varianten desselben normalisierten Basisrufzeichens werden weiterhin zu einem geografischen Marker zusammengeführt. Das Ausschalten von **Group nearby stations** erzeugt daraus keine zusätzlichen Marker und verändert weder Chatidentitäten noch Filter oder Stationsdaten.
 ### Auswahl und geografische Hilfen
@@ -4,7 +4,7 @@
 Nach dem ersten Start öffnet sich das **Einstellungsfenster** – dieses ist der zentrale Ausgangspunkt für alle Konfigurationen. Es empfiehlt sich, das Einstellungsfenster während des Betriebs geöffnet zu lassen (z. B. um den Beacon schnell ein- und auszuschalten).
-> **Wichtig**: Nach jeder Änderung unbedingt **„Save Settings"** klicken! Die Einstellungen werden unter Linux und macOS in `~/.praktiKST/preferences.xml` und unter Windows in `%USERPROFILE%\.praktiKST\preferences.xml` (bzw. `C:\Users\<Benutzername>\.praktiKST\preferences.xml`) gespeichert. Ab v1.21 werden auch Fenstergrößen und Divider-Positionen beim Speichern gesichert.
+> **Wichtig**: Fachliche Einstellungen mit **„Save Settings"** sichern, wenn sie beim nächsten Start wieder gelten sollen. Layoutänderungen wie Fenstergrößen, Divider-Positionen und Tabellenbreiten speichert KST4Contest automatisch. Die gemeinsame Datei liegt unter Linux und macOS in `~/.praktiKST/preferences.xml` und unter Windows in `%USERPROFILE%\.praktiKST\preferences.xml` (bzw. `C:\Users\<Benutzername>\.praktiKST\preferences.xml`).
 ---
@@ -14,14 +14,15 @@ Nach dem ersten Start öffnet sich das **Einstellungsfenster** – dieses ist de
 ### Login und Chat-Kategorien
-Hier werden die Zugangsdaten für den ON4KST-Chat eingetragen (Rufzeichen und Passwort).
+Hier werden das lokale Login-Rufzeichen und das Passwort für den ON4KST-Chat eingetragen. Zudem wird die **primäre Chat-Kategorie** (z. B. IARU Region 1 VHF/Microwave) ausgewählt.
 Zudem wird die **primäre Chat-Kategorie** (z. B. IARU Region 1 VHF/Microwave) ausgewählt.
-Mit der Option für einen **zweiten Chat** (Multi-Channel-Login) kann man sich gleichzeitig in eine weitere Kategorie (z. B. UHF/SHF) einloggen. Beide Chats werden dann parallel überwacht. Hier kann optional auch ein abweichender Login-Name für den zweiten Chat vergeben werden (nützlich für Opposite Station Multi-Callsign Logging).
+Mit der Option für einen **zweiten Chat** (Multi-Channel-Login) wird eine weitere Kategorie (z. B. UHF/SHF) per Single Sign-on in derselben ON4KST-TCP-Sitzung aktiviert. KST4Contest öffnet dafür keine zweite TCP-Verbindung und verwendet weder ein zweites lokales Login-Rufzeichen noch ein zweites Passwort.
 **Name in Chat 2** konfiguriert ausschließlich das sichtbare, kategoriebasierte Namensfeld der zweiten Kategorie. Es ist weder ein zweites Login noch ein Nachrichtenempfänger. Das sichtbare Namensfeld, der Nachrichtenkontext, die QRG und der Beacon bleiben für beide Kategorien getrennt. **Opposite Station Multi-Callsign Login-Tagging** bezieht sich dagegen ausschließlich auf Gegenstationen, die mit mehreren vollständigen sichtbaren Rufzeichenvarianten im Chat erscheinen.
 ### Rufzeichen und Locator
-Eigenes Rufzeichen und Maidenhead-Locator (6-stellig, z. B. `JN49IJ`) eintragen. Diese Werte werden für Distanz- und Richtungsberechnungen benötigt.
+Eigenes Rufzeichen und Maidenhead-Locator (6-stellig, z. B. `JN49IJ`) eintragen. Der Locator ist kein Bestandteil der Authentifizierung. ON4KST verwendet ihn gemeinsam für beide Kategorien der einen TCP-Sitzung; KST4Contest benötigt ihn außerdem für Distanz- und Richtungsberechnungen.
 ### Aktivierte Bänder
@@ -108,7 +109,9 @@ Drei Methoden stehen zur Verfügung, um gearbeitete Stationen automatisch zu mar
 ### Universal File Based Callsign Interpreter (Simplelogfile)
-Interpretiert beliebige Log-Dateien per Regex nach Rufzeichen-Mustern. Keine Bandinformation möglich. Geeignet als Fallback oder für nicht direkt unterstützte Logprogramme.
+Liest die ausgewählte Textdatei einmal pro Minute mit einem fest eingebauten Rufzeichenmuster. Die Treffer werden auf Basisrufzeichen normalisiert und setzen für alle aktiven Varianten nur den globalen Worked-Status. Band- und Locatorinformationen können daraus nicht abgeleitet werden. Die Funktion eignet sich als Fallback für Logprogramme ohne unterstützte Netzwerkschnittstelle. Vor der Verwendung sollte deshalb geprüft werden, ob das eingesetzte Logprogramm bereits eine der unterstützten Netzwerkschnittstellen bereitstellt.
 Existiert die ausgewählte Datei noch nicht, legt KST4Contest sie an und zeigt einmalig den vollständigen Pfad sowie Hinweise zum Funktions- und Contesttest. Die Datei ist selbst die dauerhafte Quelle; aus ihr abgeleitete Worked-Markierungen werden nicht in SQLite gespeichert und nicht automatisch für einen neuen Contest zurückgesetzt.
 ### Netzwerk-Listener für QSO-UDP-Broadcast
@@ -134,7 +137,7 @@ Die TRX-Synchronisation übernimmt die aktuelle Frequenz aus dem Logprogramm und
 | **Win-Test STATUS** | `Win-Test STATUS QRG Sync` | Verarbeitet die Haupt- oder Pass-Frequenz aus nativen Win-Test-`STATUS`-Paketen. Der Win-Test-Listener verwendet seinen separat konfigurierten Port, standardmäßig `9871`. |
 | **Manuelle Eingabe** | Beide automatischen QRG-Quellen deaktivieren | Die eigene QRG kann im Hauptfenster von Hand eingetragen werden. |
-Der allgemeine Listener ist für Logprogramme vorgesehen, die kompatible `RadioInfo`-Pakete senden. Dazu gehören – abhängig von deren jeweiliger Konfiguration – UCXLog, N1MM+, QARTest und DXLog.net. QSO- und `RadioInfo`-Pakete verwenden denselben unter **Log sync** konfigurierten Port. Dort wird jedoch getrennt festgelegt, ob KST4Contest QSO-Informationen, TRX-Informationen oder beide Paketarten verarbeitet.
+Der allgemeine Listener ist für Logprogramme vorgesehen, die kompatible `RadioInfo`-Pakete senden. Dazu gehören – abhängig von deren jeweiliger Konfiguration – UCXLog, N1MM+, QARTest und DXLog.net. QSO- und `RadioInfo`-Pakete verwenden denselben unter **Log sync** konfigurierten Port. Dort wird jedoch getrennt festgelegt, ob KST4Contest QSO-Informationen, TRX-Informationen oder beide Paketarten verarbeitet. Eine automatische QRG-Quelle muss aktiviert sein und tatsächlich gültige Pakete liefern; die Aktivierung allein aktualisiert `MYQRG` nicht.
 Wird der gemeinsame UDP-Port geändert, muss KST4Contest neu gestartet werden. Eine reine Änderung der Checkboxen wird dagegen sofort berücksichtigt.
@@ -144,7 +147,7 @@ Beide automatischen Quellen aktualisieren ausschließlich `MYQRG`. Das ist die e
 Bei aktiviertem zweiten Chat bleibt dessen QRG davon unabhängig. Sie wird nicht aus den empfangenen TRX-Paketen abgeleitet und steht als `SECONDQRG` zur Verfügung. Dadurch kann beispielsweise die erste Kategorie automatisch der Frequenz des Logprogramms folgen, während für die zweite Kategorie eine eigene QRG von Hand eingetragen wird.
-Sobald mindestens eine automatische QRG-Quelle aktiviert ist, wird das QRG-Feld der ersten Kategorie im Hauptfenster an den empfangenen Wert gebunden. Eine manuelle Eingabe in dieses Feld ist wieder möglich, wenn sowohl der allgemeine RadioInfo-Listener als auch die Win-Test-STATUS-Synchronisation deaktiviert sind.
+Sobald mindestens eine automatische QRG-Quelle aktiviert ist und einen gültigen Wert liefert, folgt das QRG-Feld der ersten Kategorie im Hauptfenster der empfangenen Frequenz. Bleiben die erwarteten Pakete aus, sollte die Schnittstelle vor dem Contest geprüft werden. Eine manuelle Eingabe in dieses Feld ist möglich, wenn sowohl der allgemeine RadioInfo-Listener als auch die Win-Test-STATUS-Synchronisation deaktiviert sind.
 ### Haupt- oder Pass-Frequenz aus Win-Test
@@ -376,12 +379,14 @@ Folgende Einstellungen und Schaltflächen gehören zur lokalen DX-Cluster-Ausgab
 ```text
 Spotted callsign: DO5AMF
-Comment: Testing DXC-Spot: Congrats, you donated $100!
+Comment: DXC test: You donated $100!
 Frequency: .300 des ausgewählten Fallback-Bandes
 ```
 Bei einem Fallback-Band von `144 MHz` wird daraus beispielsweise eine Frequenz von ungefähr `144.300 MHz`.
 Alle Spots verwenden eine feste, DXSpider-kompatible 75-Zeichen-Nutzzeile mit einem 30 Zeichen breiten Kommentarfeld. Längere Kommentare werden an dieser Protokollgrenze kontrolliert gekürzt; das DX-Rufzeichen wird dagegen nicht abgeschnitten. Rufzeichen mit mehr als zwölf Zeichen führen dazu, dass der betreffende Spot verworfen und protokolliert wird.
 Der Kommentar des Testspots ist ein bewusst beibehaltenes Easteregg. Er hat keine technische Bedeutung und löst – trotz seiner erfreulich konkreten Formulierung – keine Zahlung aus. Entscheidend ist, dass der Spot im verbundenen Logprogramm erscheint.
 Der Test funktioniert nur, wenn
@@ -576,7 +581,7 @@ KST4Contest verwendet einen gemeinsamen Timer für beide Chat-Kategorien. Aktivi
 - **Beacon message** enthält den öffentlichen Nachrichtentext dieser Kategorie.
 - **Shared beacon interval** legt das gemeinsame Intervall für beide Kategorien fest.
-Sind beide Beacons aktiviert, werden sie beim selben Timer-Lauf nacheinander in ihren jeweiligen Kategorien gesendet. Der zweite Beacon wird nur berücksichtigt, wenn auch der zweite Chat aktiviert und verbunden ist.
+Sind beide Beacons aktiviert, werden sie beim selben Timer-Lauf nacheinander in ihren jeweiligen Kategorien gesendet. Der zweite Beacon wird nur berücksichtigt, wenn die zweite Kategorie in derselben ON4KST-Sitzung aktiviert und vollständig synchronisiert ist.
 ### Intervall und Timer-Verhalten
@@ -859,6 +864,8 @@ Die interne SQLite-Datenbank speichert die contestbezogenen Zustände unabhängi
 - manuell gesetzte NOT-QRV-Tags pro Band und
 - gearbeitete vierstellige Großfelder pro Band.
 Eine Ausnahme bilden Worked-Markierungen des Simplelogfile-Interpreters. Sie werden nur aus der ausgewählten Datei in den laufenden Zustand übernommen und nicht in SQLite persistiert. Die Datei ist die dauerhafte Quelle und besitzt keinen automatischen Contest-Reset. Ein Datenbank-Reset verändert oder leert sie nicht; enthaltene Rufzeichen werden bei der nächsten periodischen Auswertung erneut als gearbeitet markiert.
 Als Schlüssel wird das normalisierte Rufzeichen ohne sichtbare Chat-Klammern oder Kategorieformatierung verwendet. Dadurch können aktive Varianten desselben Rufzeichens konsistent ausgewertet werden.
 Worked- und NOT-QRV-Informationen laufen drei Tage nach ihrer letzten Änderung automatisch ab. Gespeicherte Großfelder laufen drei Tage nach dem zugehörigen Logeintrag ab. Ein manuelles Zurücksetzen vor jedem Contest ist deshalb normalerweise nicht erforderlich.
@@ -879,8 +886,11 @@ Der Dark Mode wird über **Windows → Use dark mode design** aktiviert. Mit **W
 ## Einstellungen speichern
-Nach **jeder** Änderung **„Save Settings"** klicken! Ohne Speichern gehen alle Änderungen beim nächsten Start verloren.
+**Save Settings** speichert die fachlichen Einstellungen und den vollständigen aktuellen Layoutstand. Änderungen an Fenstergrößen und -positionen, relevanten Dividern, verwalteten Tabellenbreiten sowie der Karteneinstellung **Group nearby stations** werden zusätzlich automatisch mit kurzer Verzögerung gespeichert. Ein ausstehender Layoutstand wird beim Programmende noch geschrieben.
 - Speicherort: unter Linux und macOS `~/.praktiKST/preferences.xml` und unter Windows `%USERPROFILE%\.praktiKST\preferences.xml` (bzw. `C:\Users\<Benutzername>\.praktiKST\preferences.xml`)
- Ab v1.21: Fenstergrößen und Divider-Positionen werden ebenfalls gespeichert.
+- Der automatische Layout-Writer übernimmt keine noch nicht mit **Save Settings** bestätigten fachlichen Änderungen.
 - Die Konfigurationsversion 6 ergänzt optionale Spaltenbreiten unter `guiOptions`. Ältere `preferences.xml`-Dateien bleiben lesbar; fehlen Breiten oder sind Einträge ungültig, ermittelt KST4Contest wieder brauchbare Anfangsbreiten.
 - Die Konfigurationsversion 7 ergänzt `GUIstationMapClusteringEnabled` unter `guiOptions`. Fehlt der Eintrag oder ist sein Wert unbrauchbar, bleibt die räumliche Kartengruppierung aktiviert.
 - Ältere Programmversionen ignorieren die zusätzlichen XML-Einträge. Wenn eine ältere Version die Datei vollständig neu speichert, können die Spaltenbreiten und die gespeicherte Auswahl für **Group nearby stations** verloren gehen.
 - Bei Problemen: Konfigurationsdatei löschen → KST4Contest erstellt eine neue mit Standardwerten.
@@ -10,13 +10,15 @@ KST4Contest übernimmt gearbeitete Stationen aus dem Logprogramm und stellt dara
 ## Methode 1: Universal File Based Callsign Interpreter (Simplelogfile)
-KST4Contest liest eine Logdatei und sucht mit einem konfigurierbaren regulären Ausdruck nach Rufzeichen. Die Datei wird ausschließlich gelesen und nicht verändert. Auch binäre Logdateien können verwendet werden; nicht als Text interpretierbare Inhalte werden übersprungen.
+KST4Contest liest die ausgewählte Textdatei einmal pro Minute und sucht darin mit einem fest eingebauten regulären Ausdruck nach Rufzeichen. Jedes gefundene Rufzeichen wird auf sein Basisrufzeichen normalisiert. Der globale Worked-Status gilt dadurch für alle derzeit aktiven Chat-Varianten dieses Rufzeichens.
 Der Vorteil liegt in der breiten Kompatibilität: Die Funktion benötigt keine besondere Netzwerkschnittstelle des Logprogramms.
 Die Grenze ist ebenso eindeutig: Aus einem reinen Rufzeichentreffer lassen sich weder Band noch Locator zuverlässig ableiten. Der Simplelogfile-Interpreter kann deshalb nur den globalen Worked-Status setzen. Er erzeugt keine bandbezogene `X`-Markierung, kein Worked-Großfeld und keine belastbare Grundlage für den Band-Upgrade-Hinweis nach einem Logeintrag.
-Den Pfad der Logdatei und den regulären Ausdruck im Reiter **Log sync** eintragen. Für bandbezogene Auswertungen sollte nach Möglichkeit eine der Netzwerkschnittstellen verwendet werden.
+Den Pfad der Textdatei im Reiter **Log sync** auswählen. Fehlt die Datei, legt KST4Contest sie an und zeigt einmalig einen nicht blockierenden Hinweis mit dem Pfad und den nächsten Prüfschritten an. Lese- oder Erstellungsfehler werden protokolliert; die minütliche Auswertung läuft beim nächsten Termin weiter. Für bandbezogene Auswertungen sollte nach Möglichkeit eine der Netzwerkschnittstellen verwendet werden.
 Der aus dem Simplelogfile abgeleitete Worked-Status wird nicht in der internen SQLite-Datenbank gespeichert. Die ausgewählte Datei ist die dauerhafte Quelle und wird auch nach einem Neustart erneut eingelesen. Der Interpreter setzt nur positive Worked-Markierungen; er entfernt während der laufenden Programmsitzung keine bereits gesetzte Markierung und führt beim Wechsel zu einem neuen Contest keinen automatischen Reset durch. Auch ein manueller Datenbank-Reset ändert oder leert das Simplelogfile nicht. Darin enthaltene Rufzeichen werden bei der nächsten Auswertung innerhalb einer Minute erneut als gearbeitet markiert. Vor jedem Contest sollte deshalb geprüft werden, ob das Logprogramm genau die aktuelle Contestdatei beschreibt.
 ---
@@ -100,6 +102,24 @@ Die Band-IDs für 50 und 70 MHz werden ebenso verarbeitet wie die VHF-, UHF- und
 Die Daten werden in derselben internen Datenbank abgelegt wie Worked-Informationen aus den übrigen QSO-UDP-Schnittstellen und nach einem Neustart wiederhergestellt.
 #### Bereits geloggte QSOs nachladen
 Win-Test sendet jedes neue QSO als Broadcast. QSOs, die vor dem Start von KST4Contest geloggt wurden, sind darin nicht enthalten. KST4Contest fordert diese QSOs deshalb selbst an, sobald der Win-Test-Netzwerk-Listener eine Win-Test-Station im Netzwerk erkennt.
 Der Abgleich benötigt keine eigene Einstellung und keinen Bedienschritt:
 - Win-Test meldet mit `IHAVE`, welche QSO-Nummern welches Logs es führt.
 - KST4Contest fordert die fehlenden Bereiche mit `NEEDQSO` an, höchstens 50 QSOs pro Anfrage.
 - Win-Test beantwortet die Anfrage mit gewöhnlichen `ADDQSO`-Paketen. Sie werden genauso ausgewertet wie ein live geloggtes QSO.
 Bereits gearbeitete Stationen erscheinen dadurch auch dann als gearbeitet, wenn KST4Contest erst während des Contests gestartet wird. Der Abgleich bleibt anschließend aktiv und holt auch einzelne Pakete nach, die im laufenden Betrieb verloren gegangen sind. Bereits bekannte QSOs werden erkannt und nicht erneut gespeichert.
 Sind mehrere Win-Test-Stationen im Netzwerk aktiv, wird jedes Log abgeglichen. Damit sind die bandbezogenen Worked-Markierungen aller Bandstationen vollständig. Der Stationsnamensfilter wirkt weiterhin nur auf die QRG-Synchronisation und schränkt den Logabgleich nicht ein.
 Meldet eine erkannte Station kein auswertbares `IHAVE`, etwa bei einer älteren Win-Test-Version, fordert KST4Contest die QSOs blockweise ab QSO-Nummer 1 an, bis ein Block unbeantwortet bleibt.
 Voraussetzung ist ein aktiviertes Win-Test-Netzwerk. Ist das Win-Test-Netzwerk oder der Listener in KST4Contest deaktiviert, findet kein Abgleich statt.
 #### Skeds an Win-Test übergeben
 Mit **Create sked** wird zunächst ein interner KST4Contest-Sked angelegt. Ist der Win-Test-Netzwerk-Listener aktiviert, versucht KST4Contest anschließend automatisch, den Sked als `ADDSKED` an das Win-Test-Netzwerk zu übertragen.
@@ -152,7 +172,11 @@ Im Reiter **TRX sync**:
 - `Use pass frequency from Win-Test STATUS`
 - `Win-Test station name filter`
-Das Win-Test-Netzwerk muss in Win-Test aktiviert sein. Bei mehreren Computern muss die Broadcast-Adresse das betreffende lokale Netzwerk erreichen. Der Stationsname sollte die sendende KST4Contest-Instanz innerhalb des Win-Test-Netzwerks eindeutig erkennen lassen.
+Das Win-Test-Netzwerk muss in Win-Test aktiviert sein. Der Stationsname sollte die sendende KST4Contest-Instanz innerhalb des Win-Test-Netzwerks eindeutig erkennen lassen.
 Die Broadcast-Adresse ermittelt KST4Contest selbst: Aus der Absenderadresse der empfangenen Win-Test-Pakete wird das passende lokale Netzwerk bestimmt und dessen Broadcast-Adresse verwendet. Die eingetragene Adresse dient als Rückfallebene, wenn kein lokales Netzwerk zur Win-Test-Station passt, etwa wenn Win-Test hinter einem Router liegt.
 Das ist wichtig, weil Win-Test ausschließlich auf Broadcasts reagiert und eine Adresse in einem nicht vorhandenen Netzwerk keinen Fehler auslöst: Das Paket wird ohne Meldung weggeroutet. Eine veraltete Eintragung, etwa aus einem anderen Netzwerk, machte dadurch früher sowohl die Sked-Übergabe als auch den Logabgleich wirkungslos.
 Ausführliche Beschreibung der Einstellungen: [Win-Test-Netzwerk-Listener](de-Konfiguration#win-test-netzwerk-listener-ab-v131)
@@ -163,7 +187,7 @@ Neben der QSO-Synchronisation übertragen UCXLog und andere Programme auch die *
 ![FrequenzButtons](qrg_buttons.png)
-**Ergebnis**: Die eigene QRG muss im Chat nie mehr manuell eingegeben werden – ein Klick auf den MYQRG-Button oder die Verwendung der Variable im Beacon genügt.
+**Ergebnis**: Eine aktivierte Schnittstelle aktualisiert `MYQRG`, sobald sie tatsächlich gültige Frequenzpakete liefert. Das Aktivieren allein erzeugt noch keine QRG. Kommen keine passenden Pakete an, muss die Schnittstelle geprüft oder die QRG nach dem Deaktivieren beider automatischen Quellen manuell gepflegt werden.
 **Quellen für die eigene QRG (MYQRG):**
 - UCXLog, N1MM+, DXLog.net, QARTest via UDP-Port 12060
@@ -191,7 +215,7 @@ Für DM5M-typische Setups (2 Radios, 2 Computer, eine KST4Contest-Instanz oder z
 ## Interne Datenbank
-KST4Contest speichert Worked-, NOT-QRV- und Großfeldinformationen in einer eigenen SQLite-Datenbank. Sie ist von der Datenbank des Logprogramms unabhängig.
+KST4Contest speichert Worked-, NOT-QRV- und Großfeldinformationen aus den Netzwerkschnittstellen sowie manuelle Markierungen in einer eigenen SQLite-Datenbank. Sie ist von der Datenbank des Logprogramms unabhängig. Simplelogfile-Treffer sind davon ausgenommen und werden bei jeder Programmsitzung aus der ausgewählten Datei neu abgeleitet.
 Die Datenquellen liefern unterschiedlich genaue Informationen:
@@ -201,6 +225,6 @@ Die Datenquellen liefern unterschiedlich genaue Informationen:
 | QSO-UDP-Listener | ja | ja, wenn im Paket enthalten | ja, wenn Band und Locator enthalten sind |
 | Win-Test-Netzwerk-Listener | ja | ja | ja, wenn ein Locator enthalten ist |
-Die Daten werden beim Programmstart wieder geladen und bei neuen Logeinträgen während des Betriebs aktualisiert. Sie laufen nach drei Tagen automatisch ab. Ein Reset vor jedem Contest ist daher normalerweise nicht erforderlich.
+Die in SQLite gespeicherten Daten werden beim Programmstart wieder geladen und bei neuen Logeinträgen während des Betriebs aktualisiert. Sie laufen nach drei Tagen automatisch ab. Ein Reset vor jedem Contest ist daher normalerweise nicht erforderlich. Für den Simplelogfile-Interpreter gilt diese Lebensdauer nicht: Seine Datei bleibt die dauerhafte Quelle und wird durch einen Datenbank-Reset weder geändert noch geleert. Enthaltene Rufzeichen setzt die nächste periodische Auswertung erneut auf den globalen Worked-Status.
-Ein vollständiger manueller Reset entfernt Worked-Markierungen, NOT-QRV-Tags und Worked-Großfelder gemeinsam. Weitere Einzelheiten: [Worked Station Database Settings](de-Konfiguration#worked-station-database-settings-gearbeitete-stationen-datenbank).
+Ein vollständiger manueller Reset entfernt Worked-Markierungen, NOT-QRV-Tags und Worked-Großfelder gemeinsam. Weitere Einzelheiten: [Worked Station Database Settings](de-Konfiguration#worked-station-database-settings-gearbeitete-stationen-datenbank).
@@ -2,7 +2,7 @@
 > 🇬🇧 You are reading the English version | 🇩🇪 [Deutsche Version](de-AirScout-Integration)
-AirScout (by DL2ALF) is a program for detecting aircraft for aircraft scatter operation. KST4Contest is tightly integrated with AirScout and shows reflectable aircraft directly in the user list.
+AirScout (by DL2ALF) calculates aircraft-scatter opportunities from current aircraft positions. KST4Contest receives these results and displays aircraft suitable for the path to each remote station directly in the user list.
 > **Aircraft Scatter** enables very long-distance communication on VHF and higher – even for stations with low altitude above sea level or unfavourable topographic conditions.
@@ -15,9 +15,9 @@ Download AirScout from:
 ---
-## Aircraft Data Feeds (ADSB)
+## Aircraft Data Feeds (ADS-B)
-Public aircraft data feeds on the internet are often unreliable and limited in use. A recommended alternative is the dedicated ADSB feed service provided by **OV3T (Thomas)**:
+Public aircraft data feeds on the internet are often unreliable and of limited use. A recommended alternative is the dedicated ADS-B feed service provided by **OV3T (Thomas)**:
 - https://airscatter.dk/
 - https://www.facebook.com/groups/825093981868542
@@ -28,7 +28,7 @@ An account is required for this service. Please consider donating to Thomas –
 ## Setting Up AirScout
-### Step 1: Configure the ADSB Feed in AirScout
+### Step 1: Configure the ADS-B Feed in AirScout
 1. Start AirScout.
 2. Enter your OV3T feed account details (username, password, URL) in the AirScout settings.
@@ -85,32 +85,40 @@ Otherwise, it may result in incorrect AP data.
 ## AP Column in the User List
-After setup, an **AP column** appears in the user list showing up to two reflectable aircraft per station.
+After setup, an **AP column** appears in the user list. For each station, it shows the arrival time and the AirScout reflection potential of the first two suitable aircraft.
 Example display:
 | Station | AP Info |
 |---|---|
-| DF9QX | 2 Planes: 0 min / 0 min, 100% each |
+| DF9QX | 0 (100%) / 0 (100%) |
-| F5DYD | 2 Planes: 14 min / 31 min, 50% each |
+| F5DYD | 14 (50%) / 31 (50%) |
 The number before the brackets is the number of minutes remaining until the calculated opportunity. The percentage is the reflection potential reported by AirScout. It is not a QSO probability.
 AP information is also available in the **private messages window**.
-The percentage indicates the reflection potential (aircraft size, altitude, distance).
+## Effect on the Priority Score and Timeline
 At least one aircraft reported as reachable by AirScout raises the station's Priority Score. An opportunity expected in zero, one or two minutes receives additional time-dependent weighting. AirScout is only one factor alongside Worked status, available bands, QRB, antenna direction, chat activity and skeds.
 The AP and sked timeline uses the Priority Score to select interesting stations and places the next suitable aircraft-scatter opportunity on the time axis. The reflection potential also controls how the AP marker is displayed. The timeline remains a preview and does not guarantee a QSO.
 ---
 ## AP Variables in Messages
-Aircraft data can be inserted directly into messages:
+Aircraft data for the selected station can be inserted directly into shortcuts, snippets and other station-specific messages:
 - `FIRSTAP` → e.g. `a very big AP in 1 min`
 - `SECONDAP` → e.g. `Next big AP in 9 min`
 Details: [Macros and Variables](en-Macros-and-Variables#variables)
 Because these values require a selected remote station, `FIRSTAP` and `SECONDAP` are not available as global beacon variables.
 ---
 ## "Show Path in AirScout" Button
-In the user list there is a button with an arrow showing the direction (QTF) to the selected station. Clicking it maximises AirScout and shows the path with reflectable aircraft to the selected contact.
+In the user list there is a button with an arrow showing the direction (QTF) to the selected station. Clicking it maximises the external AirScout window and displays the path to the selected remote station together with the calculated aircraft-scatter opportunities. The button does not start a separate terrain or propagation calculation in KST4Contest.
@@ -8,6 +8,72 @@ Published Stable versions and their application packages are available under [Gi
 ---
 ## v1.43.1 (2026-09-03)
 **Corrected version metadata**
 v1.43.1 contains the same functional changes as v1.43.0. It corrects the application and build metadata used for display, ON4KST identification and update comparison. Some metadata in the first v1.43.0 package set still identified the build as version 1.42.
 ### Fixed
 - **Consistent semantic version:** The user-visible application version now uses the complete `1.43.1` form. The compact value `1.431` remains only in the deprecated numeric field required for compatibility with older update feeds.
 - **Tagged-release update feed:** The website build, version-feed validation and artifact upload now run as actual workflow steps after the GitHub Release has been published. They were previously indented into the release action's artifact list and therefore skipped.
 Users of v1.43.0 should install v1.43.1. The functionality is unchanged; the update only corrects the version metadata and release workflow.
 The corrected version is available as [Release v1.43.1](https://github.com/praktimarc/kst4contest/releases/tag/v1.43.1).
 ---
 ## v1.43.0 (2026-09-03)
 **More reliable log synchronisation, persistent layouts and better DX Cluster compatibility**
 v1.43 concentrates on reliability around external log data and long-running contest operation. It also adds practical control over table layouts and station grouping on the map.
 ### Added
 - **Optional map clustering:** **Group nearby stations** immediately enables or disables spatial grouping at lower zoom levels. The stored setting changes neither the viewport nor the selected station; aggregation of active variants sharing one base callsign remains independent. This implements [Issue #79](https://github.com/praktimarc/kst4contest/issues/79).
 - **Automatic table-layout persistence:** Tables receive useful widths when their first meaningful contents arrive. Manually changed column widths, window sizes and relevant dividers are written to `preferences.xml` after a short delay. The main and monitor windows keep separate DXCluster and QSO-of-the-other layouts.
 - **Tooltips for truncated table values:** Normal table cells expose their complete text when the visible column is too narrow, without replacing functional tooltips or clickable links.
 - **Simplelogfile creation notice:** When the selected file does not exist, KST4Contest creates it and displays a notice with the file path, a concrete test procedure and a link to the relevant manual section.
 ### Changed
 - **Robust Simplelogfile evaluation:** The selected file is evaluated once per minute and closed after every pass so that the logging application can replace or rotate it. Detected callsigns apply the global Worked state to every active suffix variant of the base callsign. Disabling the function prevents any file access, while read or creation errors no longer terminate the periodic task.
 - **Consistent external logger bands:** UCXLog-compatible packets and Win-Test events use one shared band normalisation. Numeric values, metre and centimetre designators and the existing Win-Test IDs now set the same Worked flags and worked grid squares. Values including `2320`, `5760` and `10368` are handled reliably; a missing or unknown band sets only the global Worked state.
 - **Compact full-frequency recognition:** Complete frequencies without a decimal separator are accepted across the supported bands, with the final three digits interpreted as the kHz part. Bare three-digit numbers still require recognisable frequency context so that signal reports and unrelated numbers are not treated as QRGs.
 - **DXSpider-compatible spot format:** Local DX Cluster spots use a fixed 75-character payload line with the DX callsign in column 27, a 30-character comment field and UTC time in column 71. The format remains stable up to 24 GHz. Overlong DX callsigns are rejected and logged instead of being silently truncated. This resolves [Issue #86](https://github.com/praktimarc/kst4contest/issues/86).
 - **Active ON4KST connection probe:** A quiet chat server is checked with an explicit session-wide probe before the connection is treated as dead. Heartbeats and probe frames retain the required CR/LF framing.
 - **Reliable private-message age highlighting:** Incoming private messages use the defined green age levels for up to five minutes. Locally sent messages retain their separate style, and empty or reused table rows return to the normal design instead of keeping an obsolete highlight.
 ### Fixed
 - **Worked state after login:** Persisted SQLite Worked information is loaded and applied before each initial ON4KST user list is published. Reconnects, both categories and all active variants of a base callsign therefore start with the correct state. This resolves [Issue #85](https://github.com/praktimarc/kst4contest/issues/85).
 - **False disconnect during quiet periods:** A valid ON4KST connection is no longer closed merely because the server currently has no activity lines to send.
 ### Documentation and packaging
 - The German and English manuals were revised against the implementation. A new contest-workflow chapter connects the individual functions into a practical operating sequence, while the sections on dual chat, private-message handling, QRG synchronisation, Simplelogfile evaluation and configuration were clarified.
 - The website feature pages now describe band and direction opportunities, the station map, QRG handling, filters, global message views, private-message handling and logger synchronisation in more detail.
 - The AUR package definitions were updated for v1.43.0.
 The complete v1.43.0 functionality is available in [Release v1.43.0](https://github.com/praktimarc/kst4contest/releases/tag/v1.43.0). Because its embedded version metadata is inconsistent, v1.43.1 is the recommended package set.
 ---
 ## v1.42.0 (2026-08-22)
 **Shared band context, session-based ON4KST connection and signed macOS packages**
@@ -34,6 +100,8 @@ v1.42 brings several previously separate calculations together. Band information
 - **Manual QTF input:** The current antenna direction can be changed directly in KST4Contest when PSTRotator is not being used.
 - **`MYQTF` message variable:** The current antenna direction can be inserted as a numeric angle in degrees into shortcuts, snippets and other supported message texts.
 - **Filter reset:** A dedicated reset button reliably removes the active user-list filter predicates.
 - **Map clustering:** Stations close to each other are grouped at lower zoom levels. The selected station and relevant direction opportunities remain individually visible.
@@ -80,6 +148,8 @@ v1.42 brings several previously separate calculations together. Band information
 - **DXLog full-log import:** In addition to `contactinfo`, the UCXLog-compatible UDP listener processes `contactreplace`. This allows a complete log broadcast by DXLog.net to be imported.
 - **Guarded automatic QRG updates:** `MYQRG` is updated only by an enabled interface which actually supplies valid `RadioInfo` or Win-Test `STATUS` packets. An enabled source which provides no data does not remove the need for a functional check or manual QRG maintenance.
 - **Improved version comparison:** Versions are compared semantically so that patch releases and Nightly versions are not misclassified by conversion to a floating-point number.
 ### Fixed
@@ -410,7 +480,6 @@ First publicly released version. Core features:
 ## Planned Features
 - `MYQTF` variable (own antenna direction as text)
 - ~~Lifetime for worked status (automatic reset)~~ ✅ **Implemented in v1.40** (3-day lifetime, no manual reset needed anymore)
 - Filtering the "Cluster & QSO of others" window to own QTF
 - Further topography-based calculations for direction warnings
@@ -4,7 +4,7 @@
 After the first start, the **settings window** opens – this is the central starting point for all configuration. It is recommended to keep the settings window open during operation (e.g. to quickly toggle the beacon on and off).
-> **Important**: Always click **"Save Settings"** after any change! Settings are stored in `~/.praktiKST/preferences.xml` on Linux and macOS and in `%USERPROFILE%\.praktiKST\preferences.xml` (or `C:\Users\<Username>\.praktiKST\preferences.xml`) on Windows. From v1.21 onwards, window sizes and divider positions are also saved when you click Save.
+> **Important**: Use **Save Settings** for functional settings which should remain in effect after the next start. KST4Contest saves layout changes such as window sizes, divider positions and table-column widths automatically. The shared file is `~/.praktiKST/preferences.xml` on Linux and macOS and `%USERPROFILE%\.praktiKST\preferences.xml` (or `C:\Users\<Username>\.praktiKST\preferences.xml`) on Windows.
 ---
@@ -14,14 +14,15 @@ After the first start, the **settings window** opens – this is the central sta
 ### Login and Chat Categories
-Enter your ON4KST chat credentials here (callsign and password).
+Enter the one local login callsign and password used for the ON4KST chat. Also select the **primary chat category** (e.g. IARU Region 1 VHF/Microwave).
 Also, select the **primary chat category** (e.g., IARU Region 1 VHF/Microwave).
-With the option for a **second chat** (Multi-Channel Login), you can log in to another category simultaneously (e.g., UHF/SHF). Both chats will then be monitored in parallel. You can optionally specify a different login name for the second chat (useful for Opposite Station Multi-Callsign Logging).
+The **second chat** option (Multi-Channel Login) adds another category (e.g. UHF/SHF) to the same ON4KST TCP session through Single Sign-on. KST4Contest does not open a second TCP connection and does not use another local login callsign or password.
 **Name in Chat 2** configures only the visible, category-specific name field for the second category. It is neither another login nor a message destination. The visible name field, message context, QRG and beacon remain separate for each category. **Opposite Station Multi-Callsign Login Tagging**, by contrast, refers exclusively to remote stations which appear in the chat under several complete visible callsign variants.
 ### Callsign and Locator
-Enter your own callsign and Maidenhead locator (6 characters, e.g., `JN49IJ`). These values are needed for distance and direction calculations.
+Enter your own callsign and Maidenhead locator (6 characters, e.g. `JN49IJ`). The locator is not part of authentication. ON4KST shares it between both categories in the one TCP session, and KST4Contest also uses it for distance and direction calculations.
 ### Active Bands
@@ -127,13 +128,15 @@ The **Log sync** tab selects the sources from which KST4Contest imports worked s
 | **General QSO UDP listener** | QSO packets from UCXLog, QARTest, N1MM+ and DXLog.net | global and per-band Worked status plus worked grid square where both band and locator are transmitted |
 | **Win-Test network listener** | native Win-Test network packets | global and per-band Worked status, locator information and, depending on the settings, QRG synchronisation and sked handover |
-The file-based interpreter is mainly useful when the logging application provides no supported network interface. A callsign match alone, however, contains neither a reliable band nor a locator. Use one of the network listeners wherever possible if per-band information is required.
+The file-based interpreter reads the selected text file once per minute using a fixed callsign pattern. Matches are normalised to base callsigns and set only the global Worked status for all active variants. It is mainly useful when the logging application provides no supported network interface. A callsign match alone contains neither a reliable band nor a locator, so use one of the network listeners wherever possible if per-band information is required.
 If the selected file does not exist, KST4Contest creates it and displays its full path together with checks for initial setup and the next contest. The file itself is the durable source; Worked marks derived from it are not stored in SQLite and are not reset automatically for a new contest.
 The general QSO UDP listener is the recommended interface for UCXLog, QARTest, N1MM+ and DXLog.net. QSO and `RadioInfo` packets use the same configurable UDP port; the default is `12060`. Separate options in **Log sync** and **TRX sync** determine whether the received QSO and frequency information is processed.
 Win-Test uses its own network protocol and therefore has a separate listener. Its default port is `9871`. If this port is changed while the listener is enabled, KST4Contest restarts the Win-Test listener on the new port. After changing the shared UDP port `12060`, KST4Contest must instead be restarted completely.
-All enabled input paths may be used in parallel. Their Worked information is merged into the same internal database; identical reports do not create separate Worked states. KST4Contest must be running when a QSO is saved unless the logging application can resend the existing log.
+All enabled input paths may be used in parallel and identical reports do not create separate Worked states. Network-derived Worked information is stored in the internal database. Simplelogfile marks remain runtime state derived from the selected file. Before using Simplelogfile, check whether the logging application already provides one of the supported network interfaces. KST4Contest must be running when a network QSO is transmitted unless the logging application can resend the existing log.
 Configuration of the individual logging applications, band and locator handling, and the Win-Test sked handover are described under [Log Synchronisation](en-Log-Sync).
@@ -153,7 +156,7 @@ TRX synchronisation imports the current frequency from the logging application a
 | **Win-Test STATUS** | `Win-Test STATUS QRG Sync` | Processes the main or pass frequency from native Win-Test `STATUS` packets. The Win-Test listener uses its separately configured port, which defaults to `9871`. |
 | **Manual entry** | Disable both automatic QRG sources | The local QRG can be entered manually in the main window. |
-The general listener is intended for logging applications which transmit compatible `RadioInfo` packets. Depending on their individual configuration, this includes UCXLog, N1MM+, QARTest and DXLog.net. QSO and `RadioInfo` packets use the same port configured under **Log sync**, but separate options determine whether KST4Contest processes QSO information, TRX information or both packet types.
+The general listener is intended for logging applications which transmit compatible `RadioInfo` packets. Depending on their individual configuration, this includes UCXLog, N1MM+, QARTest and DXLog.net. QSO and `RadioInfo` packets use the same port configured under **Log sync**, but separate options determine whether KST4Contest processes QSO information, TRX information or both packet types. An automatic QRG source must be enabled and actually supply valid packets; enabling it alone does not update `MYQRG`.
 Restart KST4Contest after changing the shared UDP port. Changes to the two QRG-sync checkboxes take effect immediately.
@@ -163,7 +166,7 @@ Both automatic sources update `MYQRG` only. This is the local QRG of the first o
 If a second chat is enabled, its QRG remains independent. It is not derived from incoming TRX packets and is available through `SECONDQRG`. The first category can therefore follow the logging application's frequency automatically while a separate QRG is entered manually for the second category.
-As soon as at least one automatic QRG source is enabled, the first category's QRG field in the main window is bound to the received value. Manual entry becomes available again when both the general RadioInfo listener and Win-Test STATUS synchronisation are disabled.
+When at least one automatic QRG source is enabled and supplies a valid value, the first category's QRG field in the main window follows the received frequency. If the expected packets do not arrive, verify the interface before the contest. Manual entry is available when both the general RadioInfo listener and Win-Test STATUS synchronisation are disabled.
 ### Main or Pass Frequency from Win-Test
@@ -425,12 +428,14 @@ The following settings and controls belong to the local DX cluster output:
 ```text
 Spotted callsign: DO5AMF
-Comment: Testing DXC-Spot: Congrats, you donated $100!
+Comment: DXC test: You donated $100!
 Frequency: .300 on the selected fallback band
 ```
 With `144 MHz` selected as the fallback band, the resulting frequency is approximately `144.300 MHz`.
 All spots use a fixed, DXSpider-compatible 75-character payload line with a 30-character comment field. Longer comments are deliberately truncated at this protocol boundary; the DX callsign is not. A callsign longer than twelve characters causes the affected spot to be rejected and logged.
 The comment is a deliberately retained Easter egg. It has no technical meaning and, despite being remarkably specific, does not initiate a payment. Its practical purpose is to make the test spot easy to identify in the logging software.
 The test works only if
@@ -576,7 +581,7 @@ KST4Contest uses one shared timer for both chat categories. Each category nevert
 - **Beacon message** contains the public message for that category.
 - **Shared beacon interval** sets the common interval used by both categories.
-When both beacons are enabled, they are sent one after the other in their respective categories during the same timer run. The second beacon is only considered while the second chat is enabled and connected.
+When both beacons are enabled, they are sent one after the other in their respective categories during the same timer run. The second beacon is only considered while the second category is enabled and fully synchronised in the same ON4KST session.
 ### Interval and timer behaviour
@@ -916,6 +921,8 @@ The internal SQLite database stores contest-related state independently of the l
 - manually assigned NOT-QRV marks per band, and
 - worked four-character grid squares per band.
 Worked marks from the Simplelogfile interpreter are the exception. They are copied from the selected file into runtime state only and are not persisted in SQLite. The file is the durable source and has no automatic contest reset. A database reset does not change or empty it; callsigns contained in the file are marked as worked again during the next periodic evaluation.
 The normalised callsign, without visible chat brackets or category formatting, is used as the key. This allows active variants of the same callsign to be evaluated consistently.
 Worked and NOT-QRV information expires automatically three days after its most recent change. Stored grid squares expire three days after the corresponding log entry. A manual reset before every contest is therefore normally unnecessary.
@@ -936,8 +943,11 @@ Enable Dark Mode through **Windows → Use dark mode design**. Use **Windows →
 ## Saving Settings
-Click **"Save Settings"** after **every** change! Without saving, all changes will be lost on the next start.
+**Save Settings** stores functional settings and the complete current layout. Changes to window sizes and positions, relevant dividers, managed table-column widths and the **Group nearby stations** map setting are also saved automatically after a short delay. Any pending layout update is written when the programme exits.
 - Storage location: `~/.praktiKST/preferences.xml` on Linux and macOS and `%USERPROFILE%\.praktiKST\preferences.xml` (or `C:\Users\<Username>\.praktiKST\preferences.xml`) on Windows
- From v1.21: Window sizes and divider positions are also saved.
+- The automatic layout writer does not copy functional changes which have not yet been confirmed with **Save Settings**.
 - Configuration version 6 adds optional column-width entries below `guiOptions`. Older `preferences.xml` files remain readable. Missing or invalid widths simply cause KST4Contest to calculate useful initial widths again.
 - Configuration version 7 adds `GUIstationMapClusteringEnabled` below `guiOptions`. If the entry is missing or unusable, spatial map clustering remains enabled.
 - Older programme versions ignore the additional XML entries. If an older version rewrites the complete file, column widths and the stored **Group nearby stations** choice may be lost.
 - If you encounter problems: delete the configuration file → KST4Contest will create a new one with default values.
@@ -67,6 +67,8 @@ Enable only interfaces which are actually required and have already been tested:
 A contest is not an ideal time to investigate radio conditions and a newly enabled network interface at the same time.
 Before each contest, verify that the logging application writes the current contest file to the path selected for the Simplelogfile. A test QSO should appear as globally worked within one minute. KST4Contest does not reset Worked marks derived from this file automatically when the contest changes.
 ---
 ## Basic Contest Cycle
@@ -89,7 +91,7 @@ KST4Contest keeps the required information together between these steps. Changin
 ## CQ Operation
-During operation on a mainly fixed CQ frequency, `MYQRG` and `SECONDQRG` should match the frequencies actually in use. Enabled TRX synchronisation can update `MYQRG` automatically. Without an automatic source, the value must be maintained manually.
+During operation on a mainly fixed CQ frequency, `MYQRG` and `SECONDQRG` should match the frequencies actually in use. TRX synchronisation can update `MYQRG` automatically only when it is enabled and actually supplies valid packets. Before the contest, verify this with a real frequency change. Without a working automatic source, the value must be maintained manually.
 The beacon can publish the current QRG, locator and antenna direction in the chat at regular intervals. Its variables are evaluated again for every transmission.
@@ -257,7 +259,7 @@ Another particularly consistent operating method uses the station map as a geogr
 The map consequently becomes a spatial list of the stations still to be worked. This workflow is optional. It requires reliable log synchronisation and a working DX Cluster connection and is mainly useful for operators who deliberately want to organise the contest in this geographical way.
-[Watch G1YBB demonstrate this workflow.](https://www.youtube.com/watch?v=BCNCjowPgec)
+[Watch G1YBB demonstrate this workflow.](https://www.youtube.com/watch?v=lMQZMiSHlUI)
 ---
@@ -163,7 +163,7 @@ The **Send test spot** button creates the following test entry:
 ```text
 Spotted callsign: DO5AMF
-Comment: Testing DXC-Spot: Congrats, you donated $100!
+Comment: DXC test: You donated $100!
 Frequency: .300 on the configured fallback band
 ```
@@ -191,12 +191,16 @@ A spot contains:
 - the locator; and
 - the current UTC time.
 The payload line uses a fixed, DXSpider-compatible 75-character format. The DX callsign starts in column 27, the comment field is exactly 30 characters wide and the UTC time starts in column 71. Short comments are padded with spaces; longer ones are deliberately limited to 30 characters. Different spotter-callsign lengths and frequencies up to 24 GHz do not move the following fields.
 KST4Contest does not truncate the complete DX callsign. If it exceeds twelve characters, the spot is rejected in a controlled manner and the reason is logged.
 For automatically generated directional spots, KST4Contest can add up to two current AirScout entries to the comment. Missing AirScout data does not prevent the spot from being sent. A spot triggered manually from the station map uses the selected station's locator without this optional addition.
 An automatic comment with AirScout information may look like this:
 ```text
-JN49GL , AP: 1min, 100%; 4min, 75%
+JO51HK AP 1m/100%;4m/75%
 ```
 ---
@@ -236,6 +240,24 @@ First check which frequencies were detected for the station during the previous
 If no current station context exists, check **Fallback band for relative QRG detection**. The fallback is used only when the band cannot be determined from a complete frequency or the sender's current context.
 ### The Logger Runs in Its Own Sandbox
 A logging programme started as a Flatpak, or through a Wine environment such as Bottles, uses the network permissions of that sandbox. If the sandbox does not share the host network, `127.0.0.1` inside it is not the `127.0.0.1` on which KST4Contest is listening, and the connection is refused even though KST4Contest reports the port correctly.
 For a Flatpak logger, check its permission with:
 ```bash
 flatpak info --show-permissions <application id>
 ```
 The `[Context]` section has to contain `shared=network`. It can be granted with:
 ```bash
 flatpak override --user --share=network <application id>
 ```
 The same applies when KST4Contest itself runs as a Flatpak. Its published manifest already contains `--share=network`, so a listening port is reachable from the host and from other applications on the same computer.
 ### The Logger Hides the Spot
 Try a spotter callsign which differs from the contest callsign. Depending on the logger, spots from the local callsign may be filtered or handled specially. KST4Contest itself does not require the two callsigns to differ.
@@ -84,13 +84,15 @@ KST4Contest therefore evaluates the text of every public and directed chat messa
 | Notation | Example | Processing |
 |---|---|---|
-| Complete frequency | `144.210`, `432,088`, `10368.100` | The frequency determines the band directly. |
+| Complete frequency | `144.210`, `432,088`, `144307`, `10368100` | The frequency determines the band directly. |
 | Relative frequency with a dot or comma | `.210`, `,088` | The band is added from the station context or configured fallback. |
 | Three-digit frequency with text context | `qrg 210`, `freq is 210`, `on 210`, `210 MHz` | The number is treated as a relative frequency. |
 | Three-digit number without frequency context | `210`, `599`, `144` | The number is deliberately not accepted as a QRG. |
 The final restriction prevents plausible-looking but incorrect results. With a fallback of `144 MHz`, a signal report of `599` could easily be turned into `144.599 MHz`. The result would be formally valid and operationally useless.
 A complete frequency may also be written without a dot or comma. KST4Contest treats the final three digits as the kHz part: `144307` in a station name becomes `144.307 MHz`, while `10368100` in a public or directed chat message becomes `10368.100 MHz`. The value is accepted only if the resulting frequency falls within a supported band range.
 ### How Is the Band of a Relative QRG Determined?
 KST4Contest uses the following order:
@@ -137,7 +139,7 @@ This distinction matters. A callsign already worked on one band may still be use
 [Log Synchronisation](en-Log-Sync) imports new QSOs from the logging application. The amount of information available depends on the interface being used:
- The file-based Simplelogfile interpreter detects callsigns only. It can therefore set only the global Worked status.
+- The file-based Simplelogfile interpreter reads the selected text file once per minute using a fixed callsign pattern. Matches are normalised to the base callsign and set only the global Worked status for all active variants.
 - The QSO UDP interfaces and the Win-Test network listener can also provide the band.
 - If the log packet contains a valid locator, KST4Contest additionally stores the worked four-character grid square for that band.
@@ -206,7 +208,9 @@ In plain terms: an automatically detected hint means "probably active on this ba
 ### Storage and lifetime
-Worked, NOT-QRV and worked-grid information is stored in the internal SQLite database and restored on the next start. Entries expire automatically after three days, so a reset before every contest is normally unnecessary.
+Worked, NOT-QRV and worked-grid information received from network interfaces, together with manual marks, is stored in the internal SQLite database and restored on the next start. Entries expire automatically after three days, so a reset before every contest is normally unnecessary.
 Simplelogfile matches are excluded. They are not persisted in SQLite but are derived from the selected file during each application session. The file is therefore the durable source. The interpreter does not remove an existing Worked mark during the current session and does not reset the state automatically for a new contest. A manual database reset does not change or empty the file. Callsigns contained in it are marked as worked again when the file is next evaluated within one minute.
 A manual reset under **Workedstn database** removes all Worked marks, NOT-QRV marks and stored worked grid squares. The known callsign rows remain in the database. See [Worked Station Database Settings](en-Configuration#worked-station-database-settings) for details.
@@ -307,7 +311,7 @@ Configuration, recognised QRG requests and category handling: [Configuration –
 ## Multi-Channel Login (from v1.26)
-Simultaneous login to **two chat categories** (e.g. 144 MHz and 432 MHz). Both chats are monitored in parallel.
+KST4Contest signs in to ON4KST once with one local login callsign and password. One locator is shared by the entire TCP session. A second chat category (e.g. 144 MHz and 432 MHz) is added through Single Sign-on within the same session. Both categories are monitored in parallel, while the visible category-specific name field, message context, QRG and beacon remain separate for each category.
 ---
@@ -321,7 +325,7 @@ The green private-message age scale remains available in both designs. Text colo
 ## Opposite Station Multi-Callsign Login Tagging (from v1.26)
-Support for stations that are active in the chat with multiple callsigns simultaneously (e.g. expedition setups).
+Support for remote stations which are active in the chat under several complete visible callsign variants at the same time (e.g. expedition setups). The complete callsign and chat category remain separate participant identities, while Worked, band and priority data are shared through the base callsign.
 ---
@@ -437,7 +441,7 @@ Sniffed: (DN9APW-70 > 9A0BB-23) pse sked 19:30
 This distinction is intentional. Monitoring aggregates the variants so that their communication remains visible. Message routing does not aggregate them because the intended login would otherwise become ambiguous.
-The base callsign is evaluated across both connected chat categories. The category of each individual message remains unchanged.
+The base callsign is evaluated across both chat categories in the shared ON4KST session. The category of each individual message remains unchanged.
 The monitoring view includes:
@@ -602,7 +606,7 @@ The score is calculated for the normalised base callsign. A sked entered for an
 ### How are multiple suffixes and chat categories handled?
-Active callsigns such as `9A0BB-2`, `9A0BB-70`, `9A0BB-23` and `9A0BB-13` remain separate chat members. Messages can therefore still be addressed to the complete callsign in the correct chat category.
+Active complete visible callsign variants such as `9A0BB-2`, `9A0BB-70`, `9A0BB-23` and `9A0BB-13` remain separate chat members. Messages can therefore still be addressed to the complete callsign in the correct chat category.
 Worked, band, NOT-QRV and score information belongs to the common base callsign `9A0BB`. The score is calculated once and projected to all active variants. The user list may consequently contain several separate rows with the same score, while the priority list contains only one entry for the base station.
@@ -703,7 +707,7 @@ The timeline is a preview. AirScout data can change, and a stored sked guarantee
 KST4Contest can send recurring CQ messages to the public chat. The beacon is intended for longer periods of calling CQ on a fixed frequency: it publishes the local QRG regularly without requiring the operator to enter the same text again.
-Both chat categories use one shared interval, but each category has its own enable setting and message template. The second beacon is only sent while the second chat is enabled and connected.
+Both chat categories use one shared interval, but each category has its own enable setting and message template. The second beacon is only sent while the second category is enabled and fully synchronised in the shared ON4KST session.
 Global variables such as `MYQRG`, `SECONDQRG`, `MYLOCATOR` and `MYQTF` are resolved immediately before every transmission. A QRG updated by the logging software can therefore appear in the next beacon.
@@ -718,7 +722,7 @@ Configuration, timer behaviour and available variables: [Configuration – Beaco
 ## Simplelogfile
-File-based log evaluation using regex. Details: [Log Synchronisation](en-Log-Sync#method-1-universal-file-based-callsign-interpreter-simplelogfile).
+The Simplelogfile interpreter reads callsigns from a selected text file once per minute. If the file is missing, KST4Contest creates it and displays a non-blocking notice with its path and the initial setup and contest checks. Details: [Log Synchronisation](en-Log-Sync#method-1-universal-file-based-callsign-interpreter-simplelogfile).
 ---
 ## Global Message Views
@@ -821,7 +825,11 @@ Marker colours provide a compact status indication:
 The selected state has the highest display priority, followed by the directional warning and Worked state. A selected station therefore remains orange even if it also meets one of the other conditions.
-At lower zoom levels, nearby markers are combined into screen-based clusters. This is a display function and does not merge the underlying chat members. Selected stations and important directional candidates remain individually visible where possible.
+The **Group nearby stations** checkbox controls spatial grouping. When selected, nearby markers are combined into screen-based clusters at lower zoom levels. The number inside a cluster shows how many stations it contains. Clicking a cluster zooms in but does not select an individual station. Selected stations and important directional candidates remain individually visible where possible.
 Clearing **Group nearby stations** displays every positionable station as an individual marker at every zoom level. The change takes effect immediately without reloading station data or changing the current zoom, viewport or selection. KST4Contest saves the setting automatically and restores it at the next start. Existing installations initially keep clustering enabled and therefore retain the previous behaviour.
 Screen-based clustering is separate from base-callsign aggregation. Active variants of the same normalised base callsign continue to share one geographical marker where applicable. Disabling **Group nearby stations** does not split that marker and does not change chat identities, filters or station data.
 Clicking a station marker selects the corresponding active chat member in the main window. KST4Contest scrolls to the entry in the user list, updates the **Further Info** panel and prepares the complete visible callsign as the message target. The chat suffix and category therefore remain relevant even though several variants may share one map marker.
@@ -10,17 +10,19 @@ KST4Contest imports worked stations from the logging application and derives the
 ## Method 1: Universal File Based Callsign Interpreter (Simplelogfile)
-KST4Contest reads a log file and searches it for callsigns using a configurable regular expression. The file is read only and is never modified. Binary log files can also be used; content which cannot be interpreted as text is skipped.
+KST4Contest reads the selected text file once per minute and searches it for callsigns using a fixed built-in regular expression. Each match is normalised to its base callsign, so the global Worked status applies to every currently active chat variant of that callsign.
 The advantage is broad compatibility: no dedicated network interface is required from the logging application.
 The limitation is equally clear. A callsign match alone provides neither a reliable band nor a locator. The Simplelogfile interpreter can therefore set only the global Worked status. It does not create a per-band `X`, a worked-grid record or a reliable basis for the band-upgrade hint after a log entry.
-Configure the log-file path and regular expression in the **Log sync** tab. Use one of the network interfaces where possible if band-specific information is required.
+Select the text-file path in the **Log sync** tab. If the file is missing, KST4Contest creates it and displays a one-time, non-blocking notice with the path and the checks to perform next. Read or creation errors are logged; the scheduled task continues with its next one-minute pass. Use one of the network interfaces where possible if band-specific information is required.
 Worked status derived from the Simplelogfile is not stored in the internal SQLite database. The selected file is the durable source and is read again after every restart. The interpreter only adds positive Worked marks; it does not remove an existing mark during the current application session and does not reset automatically for a new contest. A manual database reset does not change or empty the Simplelogfile either. Callsigns contained in it are marked as worked again when the file is next evaluated within one minute. Before each contest, verify that the logging application is writing the current contest log to this exact file.
 ---
-# Method 2: Network Listener for QSO UDP Packets – Recommended
+## Method 2: Network Listener for QSO UDP Packets – Recommended
 UCXLog, QARTest, N1MM+ and DXLog.net can transmit a UDP packet when a QSO is saved. KST4Contest receives these packets on port `12060` by default and imports the callsign together with any band and locator information they contain.
@@ -100,6 +102,24 @@ Band IDs for 50 and 70 MHz are processed in the same way as the VHF, UHF and SHF
 The information is written to the same internal database as Worked data received through the other QSO UDP interfaces and is restored after a restart.
 #### Recovering QSOs logged earlier
 Win-Test broadcasts every new QSO. QSOs logged before KST4Contest was started are not part of those broadcasts. KST4Contest therefore requests them itself as soon as the Win-Test network listener detects a Win-Test station on the network.
 The recovery needs no dedicated setting and no operating step:
 - Win-Test announces with `IHAVE` which QSO numbers of which log it holds.
 - KST4Contest requests the missing ranges with `NEEDQSO`, at most 50 QSOs per request.
 - Win-Test answers with ordinary `ADDQSO` packets. They are processed exactly like a QSO logged live.
 Stations already worked therefore appear as worked even when KST4Contest is started during the contest. The recovery stays active afterwards and also picks up individual packets lost during operation. Known QSOs are recognised and not stored again.
 When several Win-Test stations are active on the network, every log is recovered. The per-band Worked marks of all band stations are then complete. The station name filter still applies to the QRG synchronisation only and does not restrict the log recovery.
 If a detected station sends no usable `IHAVE`, for example an older Win-Test version, KST4Contest requests the QSOs in blocks starting at QSO number 1 until a block remains unanswered.
 The Win-Test network must be enabled. No recovery takes place while the Win-Test network or the listener in KST4Contest is disabled.
 #### Handing skeds over to Win-Test
 Pressing **Create sked** first creates an internal KST4Contest sked. If the Win-Test network listener is enabled, KST4Contest then automatically attempts to send the sked to the Win-Test network as an `ADDSKED` packet.
@@ -152,7 +172,11 @@ In the **TRX sync** tab:
 - `Use pass frequency from Win-Test STATUS`
 - `Win-Test station name filter`
-The Win-Test network must be enabled in Win-Test. When several computers are used, the broadcast address must reach the relevant local network. The station name should identify the sending KST4Contest instance unambiguously within the Win-Test network.
+The Win-Test network must be enabled in Win-Test. The station name should identify the sending KST4Contest instance unambiguously within the Win-Test network.
 KST4Contest determines the broadcast address itself: the source address of the received Win-Test packets identifies the matching local network, and the broadcast address of that network is used. The configured address serves as the fallback when no local network matches the Win-Test station, for example when Win-Test is located behind a router.
 This matters because Win-Test only reacts to broadcasts, and an address in a network that does not exist raises no error: the packet is routed away silently. An outdated entry, for instance from a different network, therefore used to disable both the sked handover and the log recovery.
 Detailed settings: [Win-Test Network Listener](en-Configuration#win-test-network-listener-from-v131)
@@ -164,7 +188,7 @@ In addition to QSO synchronisation, UCXLog and other programs also transmit the
 ![Frequency Buttons](qrg_buttons.png)
-**Result**: Your own QRG never needs to be typed manually in the chat – clicking the MYQRG button or using the variable in the beacon is sufficient.
+**Result**: An enabled interface updates `MYQRG` when it actually supplies valid frequency packets. Enabling an interface does not create a QRG on its own. If no suitable packets arrive, check the interface or disable both automatic sources and maintain the QRG manually.
 **Sources for your own QRG (MYQRG):**
 - UCXLog, N1MM+, DXLog.net, QARTest via UDP port 12060
@@ -192,7 +216,7 @@ For DM5M-style setups (2 radios, 2 computers, one KST4Contest instance or two se
 ## Internal Database
-KST4Contest stores Worked, NOT-QRV and worked-grid information in its own SQLite database. This database is independent of the logging application's database.
+KST4Contest stores Worked, NOT-QRV and worked-grid information received from network interfaces, together with manual marks, in its own SQLite database. This database is independent of the logging application's database. Simplelogfile matches are excluded and are derived again from the selected file in each application session.
 The input sources provide different levels of detail:
@@ -202,6 +226,6 @@ The input sources provide different levels of detail:
 | QSO UDP listener | yes | yes, if included in the packet | yes, if both band and locator are available |
 | Win-Test network listener | yes | yes | yes, if a locator is available |
-The information is restored when KST4Contest starts and updated during operation when new log entries arrive. It expires automatically after three days, so a reset before every contest is normally unnecessary.
+The information stored in SQLite is restored when KST4Contest starts and updated during operation when new log entries arrive. It expires automatically after three days, so a reset before every contest is normally unnecessary. This lifetime does not apply to the Simplelogfile interpreter: its file remains the durable source and is neither changed nor emptied by a database reset. Callsigns contained in it set the global Worked status again during the next periodic evaluation.
-A complete manual reset removes Worked marks, NOT-QRV marks and worked grid squares together. See [Worked Station Database Settings](en-Configuration#worked-station-database-settings) for details.
+A complete manual reset removes Worked marks, NOT-QRV marks and worked grid squares together. See [Worked Station Database Settings](en-Configuration#worked-station-database-settings) for details.
@@ -4,7 +4,7 @@
 ## Connecting to the Chat
-Before connecting for the first time, configure at least the callsign, password, locator and primary chat category in the settings window. If a second category is required, its login must also be enabled and configured completely.
+Before connecting for the first time, configure the local login callsign and password, the locator shared by the TCP session, and the primary chat category in the settings window. If a second category is required, enable and select it there. KST4Contest signs in once and adds the second category through Single Sign-on within the same TCP session.
 The connection can be started in two ways:
@@ -54,7 +54,7 @@ Both indicators flash for approximately twelve seconds and then disappear. Their
 ### PM Window (top left)
-The PM window shows private messages addressed to the local chat logins and the corresponding outgoing replies.
+The PM window shows private messages addressed to the local login callsign and the corresponding outgoing replies.
 Messages not sent by the local station are also shown when their text contains the configured local login callsign, ignoring letter case. This applies to public messages addressed to `ALL` and to directed messages between other chat participants. The informal description **“gossip detection”** is particularly apt for the latter case.
@@ -154,7 +154,15 @@ The value affects, among other things:
 ---
-## Message Tables
+## Table Widths and Truncated Cell Values
 When useful data first becomes available, KST4Contest sizes the columns of the user list, message views, DXCluster and QSO tables, and Worked database once from their headings and existing contents. Stored widths take precedence. The initial widths of **Name**, **AP** and **NOT QRV @** are capped so that one long value cannot displace the rest of the table. **Message** and similar free-text columns remain flexible and do not follow the longest message.
 Manually changed column widths are saved automatically and restored at the next start. Later messages or station updates do not overwrite that choice.
 If a normal text value does not fit in its cell, a tooltip shows the complete value. It appears only when the displayed text is actually truncated. Functional tooltips for QRA, Worked, band and similar states remain available. If such a cell is also truncated, the tooltip contains both the full value and the functional explanation.
 ### Message Text and Links
 KST4Contest deliberately displays message text on a single line. This keeps a larger number of entries visible when chat activity is high. The disadvantage is obvious: if the **Message** column is narrow, not every message fits completely into its cell.
@@ -331,7 +339,11 @@ A single station marker can be selected directly. KST4Contest then:
 Chat logins with the same normalised base callsign and position may share one marker. They nevertheless remain separate message targets inside KST4Contest.
-Markers which are too close together at the current zoom level are displayed as a cluster containing the number of stations. Clicking the cluster zooms into that area. A concrete station is selected only after an individual marker becomes visible and is clicked.
+When **Group nearby stations** is selected, markers which are too close together at lower zoom levels are displayed as a cluster containing the number of stations. Clicking the cluster zooms into that area. A concrete station is selected only after an individual marker becomes visible and is clicked. Clearing the checkbox displays every positionable station as an individual marker at every zoom level.
 The change takes effect immediately without changing the current zoom, viewport or station selection. It is saved automatically and restored at the next programme start. If no value has been stored yet, **Group nearby stations** remains selected so existing installations retain the previous behaviour.
 This switch controls only the spatial clusters on screen. Active chat variants of the same normalised base callsign may still share one geographical marker and remain separate message targets regardless of this setting.
 For a selected station, the header additionally shows:
@@ -436,7 +448,7 @@ KST4Contest additionally opens the **Cluster & QSO of the other** window. It sho
 ![Separate monitor window for DX cluster traffic and directed messages between other stations](cluster_qso_monitor.png)
-The vertical divider position and window size are stored together with the other UI settings. Use **Save Settings** after changing them.
+The vertical divider position and window size are saved automatically. The DXCluster and QSO tables use their own column widths in this window, so changing the monitor layout does not alter the corresponding main-window tabs.
 The window can be hidden and restored through:
@@ -482,13 +494,13 @@ Functions which communicate with the server are available only after the ON4KST
 ## Window Sizes and Dividers
-When **Save Settings** is clicked, KST4Contest stores the programme-window sizes and the positions of the relevant dividers in the configuration file. These values are reused at the next start.
+KST4Contest automatically stores programme-window sizes and positions, relevant dividers and manually changed table-column widths in the configuration file after a short delay. Any pending layout update is written when the programme exits. **Save Settings** is not required for these changes, but still stores the complete current state, including the layout.
 The main window is additionally checked against the visible area of the primary screen during startup. If the stored size is too large, KST4Contest reduces and moves the window so that it remains accessible. The complete process is described under [Screen-Aware Main Window Sizing](en-Features#screen-aware-main-window-sizing-from-v141).
-The other programme windows do not currently use this additional size restriction. If, for example, the separate monitor window appears too large after moving to a smaller screen, its size must be corrected manually and stored again using **Save Settings**.
+The other programme windows do not currently use this additional size restriction. If, for example, the separate monitor window appears too large after moving to a smaller screen, correcting it manually is sufficient; the new size is saved automatically.
-If the layout has become inconvenient, first move the dividers back to usable positions and save the settings again. Deleting the configuration file also resets the UI values, but it removes the other stored programme settings as well. It should therefore be used only when the interface cannot be restored in another way.
+If the layout has become inconvenient, first move the dividers and column widths back to usable positions. Deleting the configuration file also resets the UI values, but it removes the other stored programme settings as well. It should therefore be used only when the interface cannot be restored in another way.
 ---
@@ -1,6 +1,6 @@
 pkgbase = kst4contest-bin
 	pkgdesc = ON4KST Chat Client for VHF/UHF contest operation (pre-built)
-	pkgver = 1.42.0
+	pkgver = 1.44.0
 	pkgrel = 1
 	url = https://github.com/praktimarc/kst4contest
 	arch = x86_64
@@ -10,7 +10,7 @@ pkgbase = kst4contest-bin
 	provides = kst4contest
 	conflicts = kst4contest
 	conflicts = kst4contest-git
-	source = KST4Contest-v1.42.0-archlinux-x86_64.pkg.tar.zst::https://github.com/praktimarc/kst4contest/releases/download/v1.42.0/KST4Contest-v1.42.0-archlinux-x86_64.pkg.tar.zst
+	source = KST4Contest-v1.44.0-archlinux-x86_64.pkg.tar.zst::https://github.com/praktimarc/kst4contest/releases/download/v1.44.0/KST4Contest-v1.44.0-archlinux-x86_64.pkg.tar.zst
-	sha256sums = 3d8ac19c9f9d3ab0bdaf0ea621de0aa18c64f442c8776d28bfad607522aaf02b
+	sha256sums = 62688fabc25be32ebe71588eb90f0334cfb7ddde14ba1be6df9956ff4415ddf0
 pkgname = kst4contest-bin
@@ -1,6 +1,6 @@
 # Maintainer: Philipp Wagner <philipp@wagnersnetz.de>
 pkgname=kst4contest-bin
-pkgver=1.42.0
+pkgver=1.44.0
 pkgrel=1
 pkgdesc="ON4KST Chat Client for VHF/UHF contest operation (pre-built)"
 arch=('x86_64')
@@ -10,7 +10,7 @@ depends=('gst-plugins-base' 'gst-plugins-good')
 provides=('kst4contest')
 conflicts=('kst4contest' 'kst4contest-git')
 source=("KST4Contest-v${pkgver}-archlinux-${CARCH}.pkg.tar.zst::https://github.com/praktimarc/kst4contest/releases/download/v${pkgver}/KST4Contest-v${pkgver}-archlinux-${CARCH}.pkg.tar.zst")
-sha256sums=('3d8ac19c9f9d3ab0bdaf0ea621de0aa18c64f442c8776d28bfad607522aaf02b')
+sha256sums=('62688fabc25be32ebe71588eb90f0334cfb7ddde14ba1be6df9956ff4415ddf0')
 package() {
    cp -a "${srcdir}/usr" "${pkgdir}/"
@@ -1,6 +1,6 @@
 pkgbase = kst4contest-git
 	pkgdesc = ON4KST Chat Client for VHF/UHF contest operation (git)
-	pkgver = 1.42.0.r256.g8aadbb9
+	pkgver = 1.44.0.r299.g08d65a0e
 	pkgrel = 1
 	url = https://github.com/praktimarc/kst4contest
 	arch = x86_64
@@ -1,6 +1,6 @@
 # Maintainer: Philipp Wagner <philipp@wagnersnetz.de>
 pkgname=kst4contest-git
-pkgver=1.42.0.r256.g8aadbb9
+pkgver=1.44.0.r299.g08d65a0e
 pkgrel=1
 pkgdesc="ON4KST Chat Client for VHF/UHF contest operation (git)"
 arch=('x86_64')
@@ -1,6 +1,6 @@
 pkgbase = kst4contest
 	pkgdesc = ON4KST Chat Client for VHF/UHF contest operation
-	pkgver = 1.42.0
+	pkgver = 1.44.0
 	pkgrel = 1
 	url = https://github.com/praktimarc/kst4contest
 	arch = x86_64
@@ -12,7 +12,7 @@ pkgbase = kst4contest
 	provides = kst4contest
 	conflicts = kst4contest-bin
 	conflicts = kst4contest-git
-	source = kst4contest-1.42.0.tar.gz::https://github.com/praktimarc/kst4contest/archive/refs/tags/v1.42.0.tar.gz
+	source = kst4contest-1.44.0.tar.gz::https://github.com/praktimarc/kst4contest/archive/refs/tags/v1.44.0.tar.gz
-	sha256sums = bd396387b8de41aac706458d5ebf64140ab3e83b8a7c710b66aa802bd48e804e
+	sha256sums = e702df24a29e6f914a43934df0095bc4adbd00a9f02df3a632816c832272e914
 pkgname = kst4contest
@@ -1,6 +1,6 @@
 # Maintainer: Philipp Wagner <philipp@wagnersnetz.de>
 pkgname=kst4contest
-pkgver=1.42.0
+pkgver=1.44.0
 pkgrel=1
 pkgdesc="ON4KST Chat Client for VHF/UHF contest operation"
 arch=('x86_64')
@@ -11,7 +11,7 @@ makedepends=('java-environment=21' 'maven')
 provides=('kst4contest')
 conflicts=('kst4contest-bin' 'kst4contest-git')
 source=("${pkgname}-${pkgver}.tar.gz::https://github.com/praktimarc/kst4contest/archive/refs/tags/v${pkgver}.tar.gz")
-sha256sums=('bd396387b8de41aac706458d5ebf64140ab3e83b8a7c710b66aa802bd48e804e')
+sha256sums=('e702df24a29e6f914a43934df0095bc4adbd00a9f02df3a632816c832272e914')
 build() {
    cd "${srcdir}/kst4contest-${pkgver}"
@@ -6,7 +6,7 @@
    <groupId>de.x08</groupId>
    <artifactId>praktiKST</artifactId>
-    <version>1.42.0-nightly</version>
+    <version>1.44.0-nightly</version>
    <name>praktiKST</name>
@@ -20,14 +20,14 @@ public class ApplicationConstants {
    /**
     * Version shown to the user and used for semantic version comparison.
     */
-    public static final String APPLICATION_CURRENT_VERSION = "1.42";
+    public static final String APPLICATION_CURRENT_VERSION = "1.44.0";
    /**
     * Legacy numeric representation used only while older update feeds and
     * application versions still exist.
     */
    @Deprecated
-    public static final double APPLICATION_CURRENTVERSIONNUMBER = 1.42;
+    public static final double APPLICATION_CURRENTVERSIONNUMBER = 1.44;
    public static final String VERSIONINFOURLFORUPDATES_KST4CONTEST = "https://kst4contest.hamradioonline.de/kst4ContestVersionInfo.xml";
    public static final String VERSIONINFDOWNLOADEDLOCALFILE  = "kst4ContestVersionInfo.xml";
@@ -3,6 +3,7 @@ package kst4contest.controller;
 import java.net.*;
 import java.nio.ByteBuffer;
 import java.nio.channels.Selector;
 import java.nio.file.Path;
 import java.sql.SQLException;
 import java.time.OffsetDateTime;
 import java.time.ZoneOffset;
@@ -1203,10 +1204,11 @@ public class ChatController implements ThreadStatusCallback, PstRotatorEventList
 					return;
 				}
-				InetAddress broadcastAddress = InetAddress.getByName(
+				InetAddress broadcastAddress =
-						chatPreferences
+						winTestAddressResolver.resolveBroadcastAddress(
-								.getLogsynch_wintestNetworkBroadcastAddress()
+								chatPreferences
-				);
+										.getLogsynch_wintestNetworkBroadcastAddress()
 						);
 				int port =
 						chatPreferences.getLogsynch_wintestNetworkPort();
@@ -1641,11 +1643,26 @@ public class ChatController implements ThreadStatusCallback, PstRotatorEventList
 //	private String hostname = "109.90.0.130";
    private String hostname;
 //	private String praktiKSTVersion = "praktiKST 1.0";
-	private String praktiKSTVersionInfo = "2022-10 - 2022-12\ndeveloped by DO5AMF, Marc\nContact: praktimarc@gmail.com\nDonations via paypal are welcome";
+	private String praktiKSTVersionInfo = "2022-10 - 2022-12\ndeveloped by DO5AMF, Marc and DN9APW, Philipp Wagner\nContact: praktimarc@gmail.com\nDonations via paypal are welcome";
 	private int port = 23001; // kst4contest.test 4 23001 //TODO: auslagern in Chatprefs
 	private ReadUDPbyUCXMessageThread readUDPbyUCXThread;
    private ReadUDPByWintestThread readUDPByWintestThread;
 	/**
 	 * Shared resolver for the Win-Test broadcast address. Win-Test only reacts
 	 * to broadcasts, so both the log synchronization and the SKED handover have
 	 * to reach the network the station was actually heard on.
 	 */
 	private final WinTestNetworkAddressResolver winTestAddressResolver =
 			new WinTestNetworkAddressResolver();
 	/**
 	 * @return resolver for outgoing Win-Test packets
 	 */
 	public WinTestNetworkAddressResolver getWinTestAddressResolver() {
 		return winTestAddressResolver;
 	}
 	private WriteThread writeThread;
 	private ReadThread readThread;
 	private InputReaderThread consoleReader;
@@ -1847,7 +1864,7 @@ private ObservableList<String>
 	 * assumption which one is the current run frequency. Therefore the legacy
 	 * frequency property is initialized only when exactly one explicit QRG exists.</p>
 	 */
-	private void initializeFrequencyFromStationNameIfUnambiguous(
+	/* package */ void initializeFrequencyFromStationNameIfUnambiguous(
 			ChatMember member
 	) {
 		if (member == null) {
@@ -1941,6 +1958,8 @@ private ObservableList<String>
 		int categoryNumber = category.getCategoryNumber();
 		List<ChatMember> safeMembers = completeMembers == null
 				? List.of() : new ArrayList<>(completeMembers);
 		Map<String, ChatMember> workedDataFromDatabase =
 				loadWorkedStateForInitialUserList(safeMembers);
 		for (ChatMember member : safeMembers) {
 			initializeFrequencyFromStationNameIfUnambiguous(member);
 		}
@@ -1965,10 +1984,48 @@ private ObservableList<String>
 					&& member.getChatCategory() != null
 					&& member.getChatCategory().getCategoryNumber() == categoryNumber);
 			lst_chatMemberList.addAll(safeMembers);
 			if (workedDataFromDatabase != null) {
 				getLst_DBBasedWkdCallSignList().setAll(
 						workedDataFromDatabase.values());
 			}
 			fireUserListUpdate("Complete ON4KST user list received");
 		});
 	}
 	/**
 	 * Loads one database snapshot for a completed initial ON4KST user list and
 	 * applies it before those members are published to the active model or UI.
 	 * Every callsign variant receives the state stored for its normalized base
 	 * callsign.
 	 *
 	 * @param initialMembers completed members of one chat category
 	 * @return loaded snapshot, or {@code null} when the database read failed
 	 */
 	/* package */ Map<String, ChatMember> loadWorkedStateForInitialUserList(
 			Collection<ChatMember> initialMembers
 	) {
 		if (dbHandler == null) {
 			LOGGER.warning(
 					"Cannot load Worked state for initial ON4KST user list: "
 							+ "database is not initialized");
 			return null;
 		}
 		try {
 			Map<String, ChatMember> workedDataFromDatabase =
 					dbHandler.fetchChatMemberWkdDataFromDB();
 			applyWorkedAndQrvStateFromDatabase(
 					initialMembers, workedDataFromDatabase);
 			return workedDataFromDatabase;
 		} catch (SQLException | RuntimeException exception) {
 			LOGGER.log(
 					Level.WARNING,
 					"Could not load Worked state for completed initial ON4KST user list",
 					exception);
 			return null;
 		}
 	}
 	/**
 	 * Resolves a member from the thread-safe active model. This avoids reading the
 	 * TableView backing list from MessageBusManagementThread.
@@ -2016,6 +2073,177 @@ private ObservableList<String>
 		return matchingMembers;
 	}
 	/**
 	 * Applies a QSO received from an external logger to all active callsign
 	 * variants. Active member objects back JavaFX views, so their state is changed
 	 * only on the JavaFX Application Thread. The band-upgrade hint is evaluated
 	 * afterwards and therefore sees the new Worked state.
 	 *
 	 * @param loggedQso validated external QSO
 	 */
 	public void applyExternalLoggedQso(ExternalLoggedQso loggedQso) {
 		if (loggedQso == null) {
 			return;
 		}
 		runOnFxThread(() -> {
 			int updatedMembers = markExternalLoggedQsoMembers(
 					activeChatMembersByCallAndCategory.values(), loggedQso);
 			if (updatedMembers == 0) {
 				return;
 			}
 			fireUserListUpdate("External logger Worked state updated");
 			try {
 				onExternalLogEntryReceived(loggedQso.getCallSign());
 			} catch (Exception exception) {
 				LOGGER.log(Level.WARNING,
 						"Band-upgrade hint failed after external logger update for "
 								+ loggedQso.getCallSign(), exception);
 			}
 		});
 	}
 	static int markExternalLoggedQsoMembers(
 			Collection<ChatMember> members,
 			ExternalLoggedQso loggedQso
 	) {
 		if (members == null || loggedQso == null) {
 			return 0;
 		}
 		String workedBaseCall = ChatMember.normalizeCallSignToBaseCallSign(
 				loggedQso.getCallSign());
 		if (workedBaseCall == null || workedBaseCall.isBlank()) {
 			return 0;
 		}
 		int updatedMembers = 0;
 		for (ChatMember member : members) {
 			if (member == null) {
 				continue;
 			}
 			String memberCall = member.getCallSignRaw() != null
 					? member.getCallSignRaw() : member.getCallSign();
 			String memberBaseCall = ChatMember.normalizeCallSignToBaseCallSign(memberCall);
 			if (memberBaseCall != null && memberBaseCall.equalsIgnoreCase(workedBaseCall)) {
 				loggedQso.applyToActiveMember(member);
 				updatedMembers++;
 			}
 		}
 		return updatedMembers;
 	}
 	/**
 	 * Applies the global Worked state from the Simplelogfile to every active
 	 * callsign variant with the same base callsign. UI-backed state is changed only
 	 * on the JavaFX Application Thread.
 	 *
 	 * @param workedBaseCalls normalized callsigns detected in the selected file
 	 */
 	public void applySimpleLogWorkedBaseCalls(Set<String> workedBaseCalls) {
 		Set<String> normalizedWorkedBaseCalls = normalizeWorkedBaseCalls(workedBaseCalls);
 		if (normalizedWorkedBaseCalls.isEmpty()) {
 			return;
 		}
 		runOnFxThread(() -> {
 			int changedMembers = markSimpleLogWorkedMembers(
 					activeChatMembersByCallAndCategory.values(), normalizedWorkedBaseCalls);
 			int changedClusterMessages = markSimpleLogWorkedClusterMessages(
 					lst_clusterMemberList, normalizedWorkedBaseCalls);
 			if (changedMembers > 0) {
 				fireUserListUpdate("Simplelogfile Worked status updated");
 			}
 			LOGGER.log(Level.FINE,
 					"Simplelogfile marked {0} active members and {1} cluster messages as worked.",
 					new Object[] { changedMembers, changedClusterMessages });
 		});
 	}
 	static int markSimpleLogWorkedMembers(
 			Collection<ChatMember> members,
 			Set<String> workedBaseCalls
 	) {
 		if (members == null || workedBaseCalls == null || workedBaseCalls.isEmpty()) {
 			return 0;
 		}
 		int changed = 0;
 		for (ChatMember member : members) {
 			if (member == null || member.isWorked()) {
 				continue;
 			}
 			String memberCall = member.getCallSignRaw() != null
 					? member.getCallSignRaw() : member.getCallSign();
 			String baseCall = ChatMember.normalizeCallSignToBaseCallSign(memberCall);
 			if (baseCall != null && workedBaseCalls.contains(baseCall.toUpperCase(Locale.ROOT))) {
 				member.setWorked(true);
 				changed++;
 			}
 		}
 		return changed;
 	}
 	static int markSimpleLogWorkedClusterMessages(
 			Collection<ClusterMessage> clusterMessages,
 			Set<String> workedBaseCalls
 	) {
 		if (clusterMessages == null || workedBaseCalls == null || workedBaseCalls.isEmpty()) {
 			return 0;
 		}
 		int changed = 0;
 		for (ClusterMessage clusterMessage : clusterMessages) {
 			if (clusterMessage == null || clusterMessage.isReceiverWkd()
 					|| clusterMessage.getReceiver() == null) {
 				continue;
 			}
 			ChatMember receiver = clusterMessage.getReceiver();
 			String receiverCall = receiver.getCallSignRaw() != null
 					? receiver.getCallSignRaw() : receiver.getCallSign();
 			String baseCall = ChatMember.normalizeCallSignToBaseCallSign(receiverCall);
 			if (baseCall != null && workedBaseCalls.contains(baseCall.toUpperCase(Locale.ROOT))) {
 				clusterMessage.setReceiverWkd(true);
 				changed++;
 			}
 		}
 		return changed;
 	}
 	private static Set<String> normalizeWorkedBaseCalls(Set<String> workedBaseCalls) {
 		if (workedBaseCalls == null || workedBaseCalls.isEmpty()) {
 			return Set.of();
 		}
 		Set<String> normalizedCalls = new HashSet<>();
 		for (String callSign : workedBaseCalls) {
 			String baseCall = ChatMember.normalizeCallSignToBaseCallSign(callSign);
 			if (baseCall != null && !baseCall.isBlank()) {
 				normalizedCalls.add(baseCall.toUpperCase(Locale.ROOT));
 			}
 		}
 		return Set.copyOf(normalizedCalls);
 	}
 	/**
 	 * Notifies the UI after a missing Simplelogfile was created successfully.
 	 *
 	 * @param filePath absolute path of the new file
 	 */
 	public void notifySimpleLogFileCreated(Path filePath) {
 		if (filePath == null || statusListener == null) {
 			return;
 		}
 		runOnFxThread(() -> statusListener.onSimpleLogFileCreated(filePath));
 	}
 	/**
 	 * Copies the band-specific NOT-QRV state to every active category variant of the
 	 * same base callsign. The database already uses callSignRaw as its key; applying
@@ -3682,15 +3910,6 @@ private ObservableList<String>
 		}
 		new Timer().schedule(new TimerTask() {
 			@Override
 			public void run() {
 				Thread.currentThread().setName("fetchWorkedFromDBTimer");
 				refreshWorkedStateAndDatabaseListFromDatabase();
 			}
 		}, 10000);
 //		new Timer().schedule(new TimerTask() {
 //			HashMap<String, ChatMember> getWorkedDataFromDb;
 //
@@ -3794,23 +4013,34 @@ private ObservableList<String>
 		HashMap<String, ChatMember> finalWorkedDataFromDatabase = workedDataFromDatabase;
 		Platform.runLater(() -> {
-			helper_applyWorkedAndQrvStateFromDatabase(finalWorkedDataFromDatabase);
+			applyWorkedAndQrvStateFromDatabase(
 					activeChatMembersByCallAndCategory.values(),
 					finalWorkedDataFromDatabase);
 			getLst_DBBasedWkdCallSignList().setAll(finalWorkedDataFromDatabase.values());
 			fireUserListUpdate("Worked database state refreshed");
 		});
 	}
 	/**
-	 * Applies the worked and not-QRV state from the database snapshot to all active
+	 * Applies the worked and not-QRV state from a database snapshot to chat members.
-	 * chatmember objects that are currently visible in the live chat list.
+	 * Database rows are keyed by normalized base callsign, so all active category
 	 * and suffix variants receive the same persisted state.
 	 *
 	 * @param chatMembers members that should receive persisted state
 	 * @param workedDataFromDatabase map keyed by normalized raw callsign
 	 */
-	private void helper_applyWorkedAndQrvStateFromDatabase(HashMap<String, ChatMember> workedDataFromDatabase) {
+	/* package */ static void applyWorkedAndQrvStateFromDatabase(
 			Collection<ChatMember> chatMembers,
 			Map<String, ChatMember> workedDataFromDatabase
 	) {
 		if (chatMembers == null || workedDataFromDatabase == null) {
 			return;
 		}
-		for (Iterator iterator = getLst_chatMemberList().iterator(); iterator.hasNext();) {
+		for (ChatMember activeChatMember : chatMembers) {
-
+			if (activeChatMember == null) {
-			ChatMember activeChatMember = (ChatMember) iterator.next();
+				continue;
 			}
 			ChatMember storedChatMemberState = workedDataFromDatabase.get(activeChatMember.getCallSignRaw());
 			if (storedChatMemberState == null) {
@@ -4098,4 +4328,4 @@ private ObservableList<String>
 		return "Sniffed: (" + senderCall + " > " + receiverCall + ") " + msgText;
 	}
-}
+}
@@ -0,0 +1,165 @@
 package kst4contest.controller;
 import java.nio.charset.StandardCharsets;
 import java.util.Locale;
 /**
 * Formats local DX Cluster spots using the fixed-column layout emitted by
 * DXSpider and accepted by common logging programs.
 */
 final class DXClusterSpotFormatter {
    /** Length of the DX Cluster line before BEL and CRLF framing. */
    /* package */
    static final int LINE_LENGTH = 75;
    /** One-based column in which the spotted callsign starts. */
    /* package */
    static final int DX_CALL_COLUMN = 27;
    /** Width of the fixed comment field. */
    /* package */
    static final int COMMENT_LENGTH = 30;
    /** One-based column in which the UTC time starts. */
    /* package */
    static final int TIME_COLUMN = 71;
    /** Zero-based exclusive end position of the frequency field. */
    private static final int FREQUENCY_END = 24;
    /** Maximum width of the spotted callsign field. */
    private static final int DX_CALL_LENGTH = 12;
    /** Required width of the HHMMZ time field. */
    private static final int TIME_LENGTH = 5;
    /** Minimum separator width between spotter and frequency. */
    private static final int MIN_FREQUENCY_GAP = 1;
    /** Wire framing appended to every formatted line. */
    private static final String PAYLOAD_SUFFIX = "\u0007\u0007\r\n";
    private DXClusterSpotFormatter() {
    }
    /** Builds the fixed 75-character payload line without wire framing. */
    /* package */
    static String formatLine(
            final String spotterCallSign,
            final String frequency,
            final String dxCallSign,
            final String comment,
            final String time
    ) {
        final String spotter = requireValue(
                spotterCallSign,
                "spotter callsign"
        )
                .toUpperCase(Locale.ROOT);
        final String frequencyValue = requireValue(frequency, "frequency");
        final String dxCall = requireValue(dxCallSign, "DX callsign")
                .toUpperCase(Locale.ROOT);
        final String timeValue = requireValue(time, "time");
        validateDxCall(dxCall);
        validateTime(timeValue);
        final String prefix = "DX de " + spotter + ":";
        final int frequencyPadding = calculateFrequencyPadding(
                prefix,
                frequencyValue
        );
        final String normalizedComment = normalizeComment(comment);
        final String line = prefix
                + " ".repeat(frequencyPadding)
                + frequencyValue
                + "  "
                + padRight(dxCall, DX_CALL_LENGTH)
                + " "
                + padRight(normalizedComment, COMMENT_LENGTH)
                + " "
                + timeValue;
        if (line.length() != LINE_LENGTH) {
            throw new IllegalStateException(
                    "DX Cluster formatter produced "
                            + line.length()
                            + " characters instead of "
                            + LINE_LENGTH
            );
        }
        return line;
    }
    /** Builds one complete ASCII spot payload including BEL and CRLF framing. */
    /* package */
    static byte[] formatPayload(
            final String spotterCallSign,
            final String frequency,
            final String dxCallSign,
            final String comment,
            final String time
    ) {
        return (formatLine(
                spotterCallSign,
                frequency,
                dxCallSign,
                comment,
                time
        ) + PAYLOAD_SUFFIX).getBytes(StandardCharsets.US_ASCII);
    }
    private static void validateDxCall(final String dxCall) {
        if (dxCall.length() > DX_CALL_LENGTH) {
            throw new IllegalArgumentException(
                    "DX callsign exceeds 12 characters: " + dxCall
            );
        }
    }
    private static void validateTime(final String time) {
        if (time.length() != TIME_LENGTH) {
            throw new IllegalArgumentException(
                    "DX Cluster time must contain exactly five characters"
            );
        }
    }
    private static int calculateFrequencyPadding(
            final String prefix,
            final String frequency
    ) {
        final int padding = FREQUENCY_END
                - prefix.length()
                - frequency.length();
        if (padding < MIN_FREQUENCY_GAP) {
            throw new IllegalArgumentException(
                    "Spotter callsign and frequency do not fit the DX Cluster prefix"
            );
        }
        return padding;
    }
    private static String normalizeComment(final String comment) {
        final String normalized = comment == null ? "" : comment.trim();
        return normalized.length() > COMMENT_LENGTH
                ? normalized.substring(0, COMMENT_LENGTH)
                : normalized;
    }
    private static String requireValue(
            final String value,
            final String fieldName
    ) {
        if (value == null || value.isBlank()) {
            throw new IllegalArgumentException(
                    "DX Cluster " + fieldName + " is missing"
            );
        }
        return value.trim();
    }
    private static String padRight(final String value, final int length) {
        return value + " ".repeat(length - value.length());
    }
 }
@@ -152,6 +152,7 @@ public class DXClusterThreadPooledServer implements Runnable {
    public boolean broadcastSingleDXClusterEntryToLoggers(
            ChatMember chatMember
    ) {
        final byte[] clusterPayload;
        final String clusterMessage;
        try {
@@ -162,24 +163,27 @@ public class DXClusterThreadPooledServer implements Runnable {
                            .getNotify_optionalFrequencyPrefix()
            );
-            clusterMessage =
+            clusterPayload = DXClusterSpotFormatter.formatPayload(
-                    "DX de "
+                    chatController
                            + chatController
                            .getChatPreferences()
                            .getNotify_DXCSrv_SpottersCallSign()
-                            .getValue()
+                            .getValue(),
-                            + ":   "
+                    frequency,
-                            + frequency
+                    chatMember.getCallSign(),
-                            + "  "
+                    chatMember.getQra(),
-                            + chatMember.getCallSign().toUpperCase()
+                    new Utils4KST()
                            + "             "
                            + chatMember.getQra().toUpperCase()
                            + "  "
                            + new Utils4KST()
                            .time_generateCurrenthhmmZTimeStringForClusterMessage()
-                            + ((char) 7)
+            );
-                            + ((char) 7)
+            clusterMessage = new String(
-                            + "\r\n";
+                    clusterPayload,
                    StandardCharsets.US_ASCII
            );
        } catch (IllegalArgumentException exception) {
            LOGGER.log(
                    Level.WARNING,
                    "DX Cluster spot rejected: " + exception.getMessage()
            );
            return false;
        } catch (Exception exception) {
            LOGGER.log(
                    Level.SEVERE,
@@ -204,11 +208,7 @@ public class DXClusterThreadPooledServer implements Runnable {
                try {
                    OutputStream output = socket.getOutputStream();
-                    output.write(
+                    output.write(clusterPayload);
                            clusterMessage.getBytes(
                                    StandardCharsets.US_ASCII
                            )
                    );
                    output.flush();
                    deliveredClients++;
                } catch (IOException exception) {
@@ -360,4 +360,4 @@ class DXClusterServerWorkerRunnable implements Runnable {
            }
        }
    }
-}
+}
@@ -1,44 +0,0 @@
 package kst4contest.controller;
 import javafx.beans.property.SimpleStringProperty;
 import kst4contest.model.ChatMember;
 import kst4contest.model.ChatPreferences;
 public class DXClusterThreadPooledServerTest {
    public static void main(String[] args) {
        ChatController client = new ChatController();
        ChatPreferences testPreferences = new ChatPreferences();
        testPreferences.setStn_loginCallSign("DM5M");
        client.setChatPreferences(testPreferences);
        DXClusterThreadPooledServer dxClusterServer = new DXClusterThreadPooledServer(8000, client, client);
        new Thread(dxClusterServer).start();
        try {
            Thread.sleep(10 * 1000);
            System.out.println(">>>>>>>>>>>>>>>>>>>>>>>>ready.....go!");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        ChatMember test = new ChatMember();
        test.setCallSign("DL5ASG");
        test.setQra("JO51HK");
        test.setFrequency(new SimpleStringProperty("144776.0"));
        dxClusterServer.broadcastSingleDXClusterEntryToLoggers(test);
 //        try {
 //            Thread.sleep(20 * 3333);
 //        } catch (InterruptedException e) {
 //            e.printStackTrace();
 //        }
 //        System.out.println("Stopping Server");
 //        server.stop();
    }
 }
@@ -0,0 +1,116 @@
 package kst4contest.controller;
 import java.util.Optional;
 import kst4contest.model.ChatMember;
 /**
 * Validated QSO state shared by external logger listeners and the controller.
 */
 public final class ExternalLoggedQso {
 	private final String callSign;
 	private final LoggedQsoBand band;
 	private final String locator;
 	private final String source;
 	private ExternalLoggedQso(
 			String callSign,
 			LoggedQsoBand band,
 			String locator,
 			String source
 	) {
 		this.callSign = callSign;
 		this.band = band;
 		this.locator = locator;
 		this.source = source;
 	}
 	/**
 	 * Creates a QSO only when the logger supplied a usable callsign. Missing band
 	 * and locator values remain unavailable and never receive guessed defaults.
 	 *
 	 * @param rawCallSign callsign received from the logger
 	 * @param band normalized band or {@code null}
 	 * @param rawLocator locator received from the logger or {@code null}
 	 * @param source logger name used for persistence diagnostics
 	 * @return validated QSO, or an empty value for a missing callsign
 	 */
 	public static Optional<ExternalLoggedQso> create(
 			String rawCallSign,
 			LoggedQsoBand band,
 			String rawLocator,
 			String source
 	) {
 		if (rawCallSign == null) {
 			return Optional.empty();
 		}
 		String normalizedCallSign = rawCallSign.trim();
 		if (normalizedCallSign.isEmpty()) {
 			return Optional.empty();
 		}
 		String normalizedLocator = WorkedGrossFieldCache.extractLocator6(rawLocator);
 		return Optional.of(new ExternalLoggedQso(
 				normalizedCallSign,
 				band,
 				normalizedLocator,
 				source
 		));
 	}
 	public String getCallSign() {
 		return callSign;
 	}
 	public LoggedQsoBand getBand() {
 		return band;
 	}
 	public String getLocator() {
 		return locator;
 	}
 	public String getSource() {
 		return source;
 	}
 	/**
 	 * Builds the database representation of this QSO.
 	 *
 	 * @return chat-member state with global and optional band Worked flags
 	 */
 	public ChatMember toWorkedChatMember() {
 		ChatMember workedCall = new ChatMember();
 		workedCall.setCallSign(callSign);
 		workedCall.setWorked(true);
 		if (band != null) {
 			band.applyWorkedFlag(workedCall);
 		}
 		if (locator != null) {
 			workedCall.setQra(locator);
 		}
 		return workedCall;
 	}
 	/**
 	 * Applies this QSO to one active callsign variant.
 	 *
 	 * @param member active variant with the same base callsign
 	 */
 	public void applyToActiveMember(ChatMember member) {
 		if (member == null) {
 			return;
 		}
 		member.setWorked(true);
 		if (band != null) {
 			band.applyWorkedFlag(member);
 		}
 		if (locator != null
 				&& (member.getQra() == null
 				|| member.getQra().isBlank()
 				|| "unknown".equalsIgnoreCase(member.getQra()))) {
 			member.setQra(locator);
 		}
 	}
 }
@@ -0,0 +1,129 @@
 package kst4contest.controller;
 import java.util.Locale;
 import kst4contest.model.Band;
 import kst4contest.model.ChatMember;
 /**
 * Normalized band of a QSO received from an external logger.
 *
 * <p>Logger protocols use different representations for the same amateur-radio
 * band. UCXLog-compatible XML may contain a frequency-like number or a metre /
 * centimetre label, while Win-Test uses its own numeric band IDs. Resolving the
 * raw value once prevents the Worked flag and gross-field update from interpreting
 * the same packet differently.</p>
 */
 public enum LoggedQsoBand {
 	BAND_50(Band.B_50),
 	BAND_70(Band.B_70),
 	BAND_144(Band.B_144),
 	BAND_432(Band.B_432),
 	BAND_1296(Band.B_1296),
 	BAND_2320(Band.B_2320),
 	BAND_3400(Band.B_3400),
 	BAND_5760(Band.B_5760),
 	BAND_10G(Band.B_10G),
 	BAND_24G(Band.B_24G),
 	BAND_47G(null),
 	BAND_76G(null);
 	private final Band projectBand;
 	LoggedQsoBand(Band projectBand) {
 		this.projectBand = projectBand;
 	}
 	/**
 	 * Resolves aliases used by UCXLog, N1MM+, DXLog.net, QARTest and compatible
 	 * loggers. The input is trimmed and case-normalized exactly once here.
 	 *
 	 * @param rawBand band value received in the XML packet
 	 * @return normalized band, or {@code null} for a missing or unknown value
 	 */
 	public static LoggedQsoBand fromLoggerValue(String rawBand) {
 		if (rawBand == null) {
 			return null;
 		}
 		String normalizedBand = rawBand.trim().toLowerCase(Locale.ROOT);
 		return switch (normalizedBand) {
 			case "50", "6m" -> BAND_50;
 			case "70", "4m" -> BAND_70;
 			case "144", "2m" -> BAND_144;
 			case "432", "70cm" -> BAND_432;
 			case "1240", "1296", "23cm" -> BAND_1296;
 			case "2300", "2320", "13cm" -> BAND_2320;
 			case "3400", "9cm" -> BAND_3400;
 			case "5600", "5760", "6cm" -> BAND_5760;
 			case "10g", "10368", "3cm" -> BAND_10G;
 			default -> null;
 		};
 	}
 	/**
 	 * Resolves the established Win-Test ADDQSO band IDs. IDs 22 and 23 retain
 	 * their existing Worked flags even though the project Band enum has no 47 GHz
 	 * or 76 GHz value for gross-field storage.
 	 *
 	 * @param rawBandId Win-Test band ID
 	 * @return normalized band, or {@code null} for a missing or unknown ID
 	 */
 	public static LoggedQsoBand fromWinTestBandId(String rawBandId) {
 		if (rawBandId == null) {
 			return null;
 		}
 		String normalizedBandId = rawBandId.trim();
 		return switch (normalizedBandId) {
 			case "10" -> BAND_50;
 			case "11" -> BAND_70;
 			case "12" -> BAND_144;
 			case "14" -> BAND_432;
 			case "16" -> BAND_1296;
 			case "17" -> BAND_2320;
 			case "18" -> BAND_3400;
 			case "19" -> BAND_5760;
 			case "20" -> BAND_10G;
 			case "21" -> BAND_24G;
 			case "22" -> BAND_47G;
 			case "23" -> BAND_76G;
 			default -> null;
 		};
 	}
 	/**
 	 * Returns the common Band value used by worked-grid persistence.
 	 *
 	 * @return project band, or {@code null} where no matching Band value exists
 	 */
 	public Band getProjectBand() {
 		return projectBand;
 	}
 	/**
 	 * Applies the established per-band Worked flag to a chat member.
 	 *
 	 * @param member worked station or active callsign variant
 	 */
 	public void applyWorkedFlag(ChatMember member) {
 		if (member == null) {
 			return;
 		}
 		switch (this) {
 			case BAND_50 -> member.setWorked50(true);
 			case BAND_70 -> member.setWorked70(true);
 			case BAND_144 -> member.setWorked144(true);
 			case BAND_432 -> member.setWorked432(true);
 			case BAND_1296 -> member.setWorked1240(true);
 			case BAND_2320 -> member.setWorked2300(true);
 			case BAND_3400 -> member.setWorked3400(true);
 			case BAND_5760 -> member.setWorked5600(true);
 			case BAND_10G -> member.setWorked10G(true);
 			case BAND_24G -> member.setWorked24G(true);
 			case BAND_47G -> member.setWorked47G(true);
 			case BAND_76G -> member.setWorked76G(true);
 		}
 	}
 }
@@ -57,7 +57,7 @@ public class MessageBusManagementThread extends Thread {
 	/*
 	 * Frequency formats handled by the smart parser:
 	 *
-	 * Group 1: full frequencies, for example 144.210 or 10368.100
+	 * Group 1: full frequencies, for example 144.210, 144210 or 10368100
 	 * Group 2: relative frequencies with a separator, for example .210 or ,210
 	 * Group 3: bare three-digit values, for example 210
 	 *
@@ -66,7 +66,7 @@ public class MessageBusManagementThread extends Thread {
 	 * would be converted into plausible but incorrect frequencies.
 	 */
 	private static final Pattern SMART_FREQUENCY_PATTERN = Pattern.compile(
-			"(?<![\\d])(\\d{2,5}[.,]\\d{1,3}(?:[.,]\\d{1,3})?)(?![\\d])"
+			"(?<![A-Z0-9])(\\d{2,5}[.,]\\d{1,3}(?:[.,]\\d{1,3})?|\\d{5,8})(?![A-Z0-9])"
 					+ "|(?<![\\d])([.,]\\d{3}(?:[.,]\\d{1,3})?)(?![\\d])"
 					+ "|(?<=\\s|^)(\\d{3})(?=\\s|$)"
 	);
@@ -279,7 +279,7 @@ public class MessageBusManagementThread extends Thread {
 	 * @param message message whose text is inspected
 	 * @param prefs preferences containing the global fallback band
 	 */
-	private void smartFrequencyExtraction(ChatMessage message, ChatPreferences prefs) {
+	/* package */ void smartFrequencyExtraction(ChatMessage message, ChatPreferences prefs) {
 		if (message == null || message.getMessageText() == null) {
 			return;
 		}
@@ -1847,14 +1847,14 @@ public class MessageBusManagementThread extends Thread {
 	 * @param sender station for which the DX Cluster spot is generated
 	 * @return locator with up to two optional AP entries
 	 */
-	private String buildDxClusterSpotComment(ChatMember sender) {
+	static String buildDxClusterSpotComment(ChatMember sender) {
 		if (sender == null) {
 			return "";
 		}
 		String locator = sender.getQra() == null
 				? ""
-				: sender.getQra().trim();
+				: sender.getQra().trim().toUpperCase(Locale.ROOT);
 		AirPlaneReflectionInfo reflectionInfo =
 				sender.getAirPlaneReflectInfo();
@@ -1882,7 +1882,7 @@ public class MessageBusManagementThread extends Thread {
 			aircraftComments.add(
 					aircraft.getArrivingDurationMinutes()
-							+ "min, "
+							+ "m/"
 							+ aircraft.getPotential()
 							+ "%"
 			);
@@ -1893,11 +1893,11 @@ public class MessageBusManagementThread extends Thread {
 		}
 		String apComment =
-				"AP: " + String.join("; ", aircraftComments);
+				"AP " + String.join(";", aircraftComments);
 		return locator.isEmpty()
 				? apComment
-				: locator + " , " + apComment;
+				: locator + " " + apComment;
 	}
 	/**
@@ -2,10 +2,8 @@ package kst4contest.controller;
 import javafx.application.Platform;
 import kst4contest.ApplicationConstants;
 import kst4contest.model.Band;
 import kst4contest.model.ChatMember;
 import kst4contest.model.ThreadStateMessage;
 import kst4contest.view.GuiUtils;
 import java.io.BufferedWriter;
 import java.io.File;
@@ -15,8 +13,9 @@ import java.net.*;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -33,18 +32,40 @@ public class ReadUDPByWintestThread extends Thread {
    private static final int BUFFER_SIZE = 4096;
    private final Map<Integer, String> receivedQsos = new ConcurrentHashMap<>();
    private long lastPacketTime = 0;
    private String myStation = "DO5AMF";
    private String targetStation = "";
    private String stationID = "";
    private int lastKnownQso = 0;
    private ThreadStatusCallback callBackToController;
    private String ThreadNickName = "Wintest-msg";
    /**
     * Number of fields of a complete ADDQSO packet, including message type,
     * source and destination.
     */
    private static final int ADDQSO_FIELD_COUNT = 24;
    /** Field position of the Win-Test QSO number inside an ADDQSO packet. */
    private static final int ADDQSO_QSO_NUMBER_INDEX = 11;
    /** Field position of the logging station name inside an ADDQSO packet. */
    private static final int ADDQSO_STATION_NAME_INDEX = 3;
    private final WinTestLogSyncService logSyncService;
    private WinTestLogSyncService.SyncState lastReportedSyncState;
    /**
     * Last IHAVE payload seen per station. Win-Test repeats the inventory
     * periodically, so tracing only the changes keeps the output readable.
     */
    private final Map<String, String> lastTracedIhaveByStation = new HashMap<>();
    private final WinTestNetworkAddressResolver addressResolver;
    public ReadUDPByWintestThread(ChatController client, ThreadStatusCallback callback) {
@@ -53,6 +74,21 @@ public class ReadUDPByWintestThread extends Thread {
        this.myStation = client.getChatPreferences().getStn_loginCallSignRaw(); //callsign of the logging stn
        this.PORT =  client.getChatPreferences().getLogsynch_wintestNetworkPort();
        WinTestNetworkAddressResolver sharedAddressResolver =
                client.getWinTestAddressResolver();
        this.addressResolver = sharedAddressResolver != null
                ? sharedAddressResolver
                : new WinTestNetworkAddressResolver();
        /*
         * Preferences are read late on purpose: station name, port and broadcast
         * address can be changed while the listener is running.
         */
        this.logSyncService = new WinTestLogSyncService(
                this::sendNeedQso,
                this::resolveOwnWinTestStationName
        );
    }
    @Override
@@ -87,35 +123,113 @@ public class ReadUDPByWintestThread extends Thread {
        while (running) {
            try {
                /*
                 * DatagramPacket keeps the length of the previous datagram, so
                 * without resetting it a long packet would be truncated after a
                 * short one. A truncated packet loses its trailing fields and
                 * its checksum.
                 */
                packet.setLength(buffer.length);
                socket.receive(packet);
-                String msg = new String(packet.getData(), 0, packet.getLength(), StandardCharsets.US_ASCII).trim();
+                processWinTestDatagram(
-                processWinTestMessage(msg);
+                        packet.getData(), packet.getLength(), packet.getAddress());
            } catch (SocketTimeoutException e) {
-//                checkForMissingQsos();
+                logSyncService.tick();
                reportSyncStateIfChanged();
            } catch (IOException e) {
                //TODO: here is something to catch
            }
        }
    }
-    private void processWinTestMessage(String msg) {
+    /**
     * Resolves the Win-Test framing of a received datagram and processes it.
     *
     * <p>The checksum byte and the NUL terminator are removed on the raw bytes
     * before any text parsing, so the trailing fields of the packet stay
     * readable. Afterwards the log synchronization gets its chance to request
     * QSOs that were logged before this listener was started.</p>
     *
     * @param datagram raw datagram buffer
     * @param length number of valid bytes in the buffer
     */
    void processWinTestDatagram(byte[] datagram, int length, InetAddress source) {
        if (datagram == null || length <= 0) {
            return;
        }
        WinTestPacket packet = WinTestPacket.fromDatagram(datagram, length);
        if (packet != null && isWinTestStationMessage(packet.getMessageType())) {
            /*
             * Win-Test only answers broadcasts. Remembering where its packets
             * come from keeps outgoing requests on the network the station
             * actually lives in, even when the configured broadcast address
             * belongs to a different or no longer existing network.
             */
            addressResolver.rememberStationAddress(source);
        }
        if (packet == null) {
            /*
             * The datagram does not follow the Win-Test framing. It still
             * reaches the established text handling, which also recognizes the
             * poison pill that stops this listener.
             */
            processWinTestPacket(
                    null,
                    new String(datagram, 0, length, StandardCharsets.US_ASCII).trim()
            );
            return;
        }
        processWinTestPacket(packet, packet.getMessageText());
        logSyncService.tick();
        reportSyncStateIfChanged();
    }
    void processWinTestMessage(String msg) {
        processWinTestPacket(WinTestPacket.fromMessageText(msg), msg);
    }
    /**
     * Processes one Win-Test message.
     *
     * @param packet parsed packet, or {@code null} when the message does not
     *               follow the Win-Test framing
     * @param msg complete message text
     */
    private void processWinTestPacket(WinTestPacket packet, String msg) {
 //        System.out.println("Wintest-Message received: " + msg);
        if (msg == null) {
            return;
        }
        lastPacketTime = System.currentTimeMillis();
        if (msg.startsWith("HELLO:")) { //Client Signon of wintest
            parseHello(msg);
            try {
 //                send_needqso();
            }catch (Exception e) {
                System.out.println("Error: ");
                e.printStackTrace();
            }
            if (packet != null) {
                System.out.println("[WinTest RX] HELLO from " + packet.getSource());
                logSyncService.onStationSeen(packet.getSource());
            }
        } else if (msg.startsWith("ADDQSO:")) { //adding qso to wintest log
            try {
                if (packet != null && !packet.getDestination().isEmpty()) {
                    /*
                     * A directed ADDQSO is the answer to one of our NEEDQSO
                     * requests. Tracing it separates a missing answer from a
                     * failing evaluation of the answer.
                     */
                    System.out.println("[WinTest RX] ADDQSO answer from "
                            + packet.getSource() + " to " + packet.getDestination());
                }
                parseAddQso(msg);
            } catch (Exception e) {
                ThreadStateMessage threadStateMessage = new ThreadStateMessage(this.ThreadNickName, true, "Parsing ERROR: " + Arrays.toString(e.getStackTrace()), true);
@@ -125,8 +239,19 @@ public class ReadUDPByWintestThread extends Thread {
        } else if (msg.startsWith("STATUS")) {
            parseStatus(msg);
            /*
             * HELLO is only sent when a log is opened, so a listener that was
             * started later learns about a station from its periodic STATUS.
             * The configured station-name filter stays a QRG-sync setting: in a
             * multi-station setup every band station keeps its own log, and all
             * of them contribute Worked state.
             */
            if (packet != null) {
                logSyncService.onStationSeen(packet.getSource());
            }
        } else if (msg.startsWith("IHAVE:")) { //periodical message of wintest, which qsos are in the log
-//            parseIHave(msg); //TODO
+            parseIHave(packet);
        }
        else if (msg.contains(ApplicationConstants.DISCONNECT_RDR_POISONPILL)) {
@@ -140,6 +265,130 @@ public class ReadUDPByWintestThread extends Thread {
        callBackToController.onThreadStatus(ThreadNickName,threadStateMessage);
    }
    /**
     * Hands the periodic Win-Test log inventory to the log synchronization.
     *
     * <p>A packet with a broken checksum is discarded here. The run-length
     * inventory is the last field of an IHAVE packet, so a corrupted packet
     * would announce QSO ranges that do not exist. The established handling of
     * the other message types is deliberately left unchanged, because it never
     * verified the checksum.</p>
     *
     * @param packet received IHAVE packet
     */
    private void parseIHave(WinTestPacket packet) {
        if (packet == null) {
            return;
        }
        if (packet.isChecksumPresent() && !packet.isChecksumValid()) {
            System.out.println("[WinTest] IHAVE with invalid checksum ignored");
            return;
        }
        String tracedPayload = String.join(" ", packet.getDataTokens());
        if (!tracedPayload.equals(lastTracedIhaveByStation.put(packet.getSource(), tracedPayload))) {
            System.out.println("[WinTest RX] IHAVE from " + packet.getSource()
                    + " to '" + packet.getDestination() + "': " + tracedPayload
                    + (WinTestIhaveInventory.fromPacket(packet).isEmpty()
                            ? "  <-- not usable as inventory" : ""));
        }
        logSyncService.onIhaveReceived(packet);
    }
    /**
     * Reports a change of the log-synchronization progress to the controller.
     */
    private void reportSyncStateIfChanged() {
        WinTestLogSyncService.SyncState currentSyncState = logSyncService.getState();
        if (currentSyncState == lastReportedSyncState) {
            return;
        }
        lastReportedSyncState = currentSyncState;
        ThreadStateMessage threadStateMessage = new ThreadStateMessage(
                this.ThreadNickName, true, "log sync: " + currentSyncState, false);
        callBackToController.onThreadStatus(ThreadNickName, threadStateMessage);
    }
    /**
     * Sends a NEEDQSO request as a UDP broadcast.
     *
     * <p>The framing follows the wtKST implementation exactly, including the
     * leading blank of the data part:</p>
     *
     * <pre>
     *   NEEDQSO: "KST4Contest" "STN1"  "STN1@44510" 1 50{checksum}\0
     * </pre>
     *
     * @param targetStation Win-Test station the request is addressed to
     * @param logId log identity in the form {@code StationName@LogUniqueID}
     * @param countFrom first requested QSO number
     * @param countTo last requested QSO number
     */
    private void sendNeedQso(String targetStation, String logId, long countFrom, long countTo) {
        String data = " \"" + logId + "\" " + countFrom + " " + countTo;
        WinTestMessage needQsoMessage = new WinTestMessage(
                WinTestMessage.MessageType.NEEDQSO,
                resolveOwnWinTestStationName(),
                targetStation,
                data
        );
        try (DatagramSocket sendSocket = new DatagramSocket()) {
            sendSocket.setBroadcast(true);
            sendSocket.setReuseAddress(true);
            byte[] messageBytes = needQsoMessage.toBytes();
            InetAddress broadcastAddress = addressResolver.resolveBroadcastAddress(
                    client.getChatPreferences().getLogsynch_wintestNetworkBroadcastAddress());
            int targetPort = client.getChatPreferences().getLogsynch_wintestNetworkPort();
            sendSocket.send(new DatagramPacket(
                    messageBytes, messageBytes.length, broadcastAddress, targetPort));
            System.out.println("[WinTest LogSync] NEEDQSO to " + targetStation
                    + " for " + logId + " " + countFrom + "-" + countTo);
        } catch (IOException | RuntimeException exception) {
            System.out.println("[WinTest LogSync] NEEDQSO could not be sent: "
                    + exception.getMessage());
        }
    }
    /**
     * @return own station name in the Win-Test network, never blank
     */
    private String resolveOwnWinTestStationName() {
        String configuredStationName =
                client.getChatPreferences().getLogsynch_wintestNetworkStationNameOfKST();
        if (configuredStationName == null || configuredStationName.isBlank()) {
            return "KST4Contest";
        }
        return configuredStationName.trim();
    }
    /**
     * Checks whether a message type identifies a genuine Win-Test station.
     *
     * <p>Internal control messages such as the poison pill must not influence
     * the address of outgoing Win-Test packets.</p>
     *
     * @param messageType message type of a received packet
     * @return {@code true} for a Win-Test station message
     */
    private static boolean isWinTestStationMessage(String messageType) {
        return "HELLO".equals(messageType)
                || "STATUS".equals(messageType)
                || "IHAVE".equals(messageType)
                || "ADDQSO".equals(messageType);
    }
    /**
     * parsing of the hello message of wintest:
     * "HELLO: "STN1" "" 6667 130 "SLAVE" 1 0 1762201985"
@@ -348,15 +597,6 @@ public class ReadUDPByWintestThread extends Thread {
        }
    }
 //    private void send_needqso() throws IOException {
 //        String payload = String.format("NEEDQSO:\"%s\" \"%s\" \"%s\" %d %d?\0",
 //                "DO5AMF", "STN1", stationID, 1, 9999);
 //        InetAddress broadcast = InetAddress.getByName("255.255.255.255");
 //        byte[] bytes = payload.getBytes(StandardCharsets.US_ASCII);
 //        bytes[bytes.length - 2] = util_calculateChecksum((bytes));
 //        socket.send(new DatagramPacket(bytes, bytes.length, broadcast, 9871));
 //    }
 //    private void send_hello() throws IOException {
 //        String payload = String.format("HELLO:\"%s\" \"%s\" \"%s\" %d %d?\0",
 //                "DO5AMF", "", stationID, "SLAVE", 1, 14);
@@ -368,33 +608,83 @@ public class ReadUDPByWintestThread extends Thread {
    /**
-     * Resolves the project Band enum from Win-Test band IDs.
+     * Extracts the unchanged Win-Test band ID from the unquoted ADDQSO fields.
     *
-     * <p>Only bands that exist in the current Band enum are returned. 50/70 MHz are
+     * @param message complete ADDQSO packet
-     * still represented as worked flags in ChatMember, but they are not part of the
+     * @return raw band ID or an empty value when the field is missing
     * current Reachability/New-Locator band enum.</p>
     *
     * @param bandId Win-Test band id from ADDQSO
     * @return matching Band or null
     */
-    private Band helper_resolveBandFromWinTestBandId(String bandId) {
+    static String extractBandIdFromWinTestAddQso(String message) {
-        if (bandId == null) {
+        if (message == null) {
            return "";
        }
        String[] quotedParts = message.split("\"");
        if (quotedParts.length <= 6) {
            return "";
        }
        String unquotedFields = quotedParts[6].trim();
        if (unquotedFields.isEmpty()) {
            return "";
        }
        String[] packetFields = unquotedFields.split("\\s+");
        return packetFields.length > 3 ? packetFields[3] : "";
    }
    /**
     * Builds the log identity of an ADDQSO packet.
     *
     * <p>Win-Test numbers the QSOs of every log continuously, so a QSO is only
     * identified by the combination of the logging station, the unique log ID
     * and the QSO number. The log ID is the last field of the packet.</p>
     *
     * @param packetFields fields of the ADDQSO packet
     * @return identity in the form {@code StationName@LogUniqueID}, or
     *         {@code null} when the packet does not carry both values
     */
    static String extractLogIdFromWinTestAddQso(List<String> packetFields) {
        if (packetFields == null || packetFields.size() < ADDQSO_FIELD_COUNT) {
            return null;
        }
-        return switch (bandId.trim()) {
+        String stationName = packetFields.get(ADDQSO_STATION_NAME_INDEX);
-            case "10" -> Band.B_50;
+        String logUniqueId = packetFields.get(packetFields.size() - 1);
-            case "11" -> Band.B_70;
+
-            case "12" -> Band.B_144;
+        if (stationName == null || stationName.isBlank()
-            case "14" -> Band.B_432;
+                || logUniqueId == null || logUniqueId.isBlank()) {
-            case "16" -> Band.B_1296;
+            return null;
-            case "17" -> Band.B_2320;
+        }
-            case "18" -> Band.B_3400;
+
-            case "19" -> Band.B_5760;
+        return stationName.trim() + "@" + logUniqueId.trim();
-            case "20" -> Band.B_10G;
+    }
-            case "21" -> Band.B_24G;
+
-            default -> null;
+    /**
-        };
+     * Extracts the Win-Test QSO number of an ADDQSO packet.
     *
     * <p>Win-Test sends {@code 0} instead of {@code 1} for the first QSO of a
     * log in some situations. wtKST corrects that the same way.</p>
     *
     * @param packetFields fields of the ADDQSO packet
     * @return QSO number, or {@code 0} when the packet carries no usable value
     */
    static long extractQsoNumberFromWinTestAddQso(List<String> packetFields) {
        if (packetFields == null || packetFields.size() < ADDQSO_FIELD_COUNT) {
            return 0L;
        }
        String rawQsoNumber = packetFields.get(ADDQSO_QSO_NUMBER_INDEX);
        if (rawQsoNumber == null) {
            return 0L;
        }
        try {
            long qsoNumber = Long.parseLong(rawQsoNumber.trim());
            return qsoNumber <= 0L ? 1L : qsoNumber;
        } catch (NumberFormatException exception) {
            return 0L;
        }
    }
    /**
@@ -449,112 +739,53 @@ public class ReadUDPByWintestThread extends Thread {
     * @param msg
     */
    private void parseAddQso(String msg) {
        ChatMember modifyThat = null;
        try {
-//            int qsoNumber = extractQsoNumber(msg);
+            List<String> packetFields = WinTestPacket.tokenize(msg);
-//            receivedQsos.put(qsoNumber, msg);
+            String logId = extractLogIdFromWinTestAddQso(packetFields);
-//            lastKnownQso = Math.max(lastKnownQso, qsoNumber);
+            long qsoNumber = extractQsoNumberFromWinTestAddQso(packetFields);
-            String callSignCatched = msg.split("\"") [7];
+
            /*
             * The QSO number is registered before any validation. Otherwise the
             * log synchronization would request a QSO with unusable content
             * over and over again.
             */
            boolean isUnknownQso = logSyncService.registerReceivedQso(logId, qsoNumber);
            String[] quotedParts = msg == null ? new String[0] : msg.split("\"");
            String callSign = quotedParts.length > 7 ? quotedParts[7] : "";
            String rawBandId = extractBandIdFromWinTestAddQso(msg);
            String locatorFromLogger = helper_resolveLocatorFromWinTestAddQso(msg);
-
+            LoggedQsoBand loggedBand = LoggedQsoBand.fromWinTestBandId(rawBandId);
-            ChatMember workedCall = new ChatMember();
+            ExternalLoggedQso loggedQso = ExternalLoggedQso.create(
-            workedCall.setCallSign(callSignCatched);
+                    callSign, loggedBand, locatorFromLogger, "WINTEST").orElse(null);
-            workedCall.setWorked(true); //its worked at this place, for sure!
+            if (loggedQso == null) {
-
+                System.out.println("[WinTestUDPRcvr: warning] ADDQSO without usable callsign ignored");
-            if (locatorFromLogger != null) {
+                return;
                workedCall.setQra(locatorFromLogger);
            }
-            ArrayList<Integer> markTheseChattersAsWorked = client.checkListForChatMemberIndexesByCallSign(workedCall);
+            if (!isUnknownQso) {
-
+                /*
-            String bandId;
+                 * Win-Test resends known QSOs when a NEEDQSO request overlaps
-            bandId = msg.split("\"")[6].split(" ")[4].trim();
+                 * with QSOs that already arrived as a broadcast. Worked state
-
+                 * and database entry exist in that case, so repeating the write
-            Band workedBand = helper_resolveBandFromWinTestBandId(bandId);
+                 * would only cost time during the initial log recovery.
-            switch (bandId) {
+                 */
-                case "10" -> workedCall.setWorked50(true);
+                return;
                case "11" -> workedCall.setWorked70(true);
                case "12" -> workedCall.setWorked144(true);
                case "14" -> workedCall.setWorked432(true);
                case "16" -> workedCall.setWorked1240(true);
                case "17" -> workedCall.setWorked2300(true);
                case "18" -> workedCall.setWorked3400(true);
                case "19" -> workedCall.setWorked5600(true);
                case "20" -> workedCall.setWorked10G(true);
                case "21" -> workedCall.setWorked24G(true);
                case "22" -> workedCall.setWorked47G(true);
                case "23" -> workedCall.setWorked76G(true);
                default -> System.out.println("[WinTestUDPRcvr: warning] Unbekannte Band-ID: " + bandId);
            }
-            if (workedBand != null && locatorFromLogger != null) {
+            if (loggedBand == null && !rawBandId.isEmpty()) {
-                this.client.registerWorkedGrossField(workedBand, locatorFromLogger, workedCall, "WINTEST");
+                System.out.println("[WinTestUDPRcvr: warning] Unknown band ID: " + rawBandId);
            }
-            if (!markTheseChattersAsWorked.isEmpty()) {
+            ChatMember workedCall = loggedQso.toWorkedChatMember();
-                //Worked call is part of the current chatmember list
+            if (loggedBand != null
-
+                    && loggedBand.getProjectBand() != null
-                for (int index : markTheseChattersAsWorked) {
+                    && locatorFromLogger != null) {
-                    //iterate through the logged in chatmembers callsigns and set the worked markers
+                this.client.registerWorkedGrossField(
-                    modifyThat = client.getLst_chatMemberList().get(index);
+                        loggedBand.getProjectBand(), locatorFromLogger, workedCall, loggedQso.getSource());
                    modifyThat.setWorked(true); //worked its for sure
                    if (locatorFromLogger != null
                            && (modifyThat.getQra() == null
                            || modifyThat.getQra().isBlank()
                            || "unknown".equalsIgnoreCase(modifyThat.getQra()))) {
                        modifyThat.setQra(locatorFromLogger);
                    }
                    if (workedCall.isWorked50()) {
                        modifyThat.setWorked50(true);
                    } else if (workedCall.isWorked70()) {
                        modifyThat.setWorked70(true);
                    } else if (workedCall.isWorked144()) {
                        modifyThat.setWorked144(true);
                    } else if (workedCall.isWorked432()) {
                        modifyThat.setWorked432(true);
                    } else if (workedCall.isWorked1240()) {
                        modifyThat.setWorked1240(true);
                    } else if (workedCall.isWorked2300()) {
                        modifyThat.setWorked2300(true);
                    } else if (workedCall.isWorked3400()) {
                        modifyThat.setWorked3400(true);
                    } else if (workedCall.isWorked5600()) {
                        modifyThat.setWorked5600(true);
                    } else if (workedCall.isWorked10G()) {
                        modifyThat.setWorked10G(true);
                    } else if (workedCall.isWorked24G()) {
                        modifyThat.setWorked24G(true);
                    } else if (workedCall.isWorked47G()) {
                        modifyThat.setWorked47G(true);
                    } else if (workedCall.isWorked76G()) {
                        modifyThat.setWorked76G(true);
                    }   else {
                        System.out.println("[WinTestUDPRcvr: warning] found no new worked-flag for this band: " + workedCall.getCallSignRaw() + bandId);
                    }
                }
                try {
                    GuiUtils.triggerGUIFilteredChatMemberListChange(client); //not clean at all
                    // trigger band-upgrade hint after log entry (Win-Test)
                    try {
                        client.onExternalLogEntryReceived(workedCall.getCallSignRaw());
                    } catch (Exception e) {
                        System.out.println("[WinTestUDPRcvr, warning]: band-upgrade hint failed: " + e.getMessage());
                    }
                } catch (Exception IllegalStateException) {
                    //do nothing, as it works...
                }
            }
            client.applyExternalLoggedQso(loggedQso);
            boolean isInChat = this.client.getDbHandler().updateWkdInfoOnChatMember(workedCall);
            // This will update the worked info on a worked chatmember. DBHandler will
@@ -587,17 +818,9 @@ public class ReadUDPByWintestThread extends Thread {
            bufwrtrRawMSGOut = new BufferedWriter(fileWriterPersistUDPToFile);
-            if (modifyThat != null) {
+            bufwrtrRawMSGOut.write("\n" + workedCall.toString());
-                bufwrtrRawMSGOut.write("\n" + modifyThat.toString());
+            bufwrtrRawMSGOut.flush();
-                bufwrtrRawMSGOut.flush();
+            bufwrtrRawMSGOut.close();
                bufwrtrRawMSGOut.close();
            } else {
                bufwrtrRawMSGOut.write("\n" + workedCall.toString());
                bufwrtrRawMSGOut.flush();
                bufwrtrRawMSGOut.close();
            }
            System.out.println("[WinTest, Info: Marking Chatmember as worked: " + workedCall.toString());
@@ -3,7 +3,6 @@ package kst4contest.controller;
 import java.io.*;
 import java.net.*;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import javax.xml.XMLConstants;
@@ -13,7 +12,6 @@ import javax.xml.parsers.ParserConfigurationException;
 import kst4contest.ApplicationConstants;
 import kst4contest.model.ThreadStateMessage;
 import kst4contest.view.GuiUtils;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
@@ -132,54 +130,6 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 		return WorkedGrossFieldCache.extractLocator6(helper_getOptionalElementText(element, "rcvnr"));
 	}
 	/**
 	 * Resolves the project Band enum from logger band values.
 	 *
 	 * @param band logger band text
 	 * @return matching Band or null
 	 */
 	private Band helper_resolveBandFromLoggerBand(String band) {
 		if (band == null) {
 			return null;
 		}
 		switch (band.trim()) {
 			case "50":
 			case "6m":
 				return Band.B_50;
 			case "70":
 			case "4m":
 				return Band.B_70;
 			case "144":
 			case "2m":
 				return Band.B_144;
 			case "432":
 			case "70cm":
 				return Band.B_432;
 			case "1240":
 			case "1296":
 			case "23cm":
 				return Band.B_1296;
 			case "2300":
 			case "2320":
 			case "13cm":
 				return Band.B_2320;
 			case "3400":
 			case "9cm":
 				return Band.B_3400;
 			case "5600":
 			case "5760":
 			case "6cm":
 				return Band.B_5760;
 			case "10G":
 			case "10368":
 			case "3cm":
 				return Band.B_10G;
 			default:
 				return null;
 		}
 	}
 	public void run() {
        System.out.println("ReadUDPByUCXLogThread: started Thread for UCXLog getUDP");
@@ -295,8 +245,6 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 		String udpMsg = helper_extractXmlPayload(udpPacketToProcess);
 		ChatMember modifyThat = null;
        ThreadStateMessage threadStateMessage = new ThreadStateMessage(this.ThreadNickName, true, "received Message\n" + udpMsg, false);
        callBackToController.onThreadStatus(ThreadNickName,threadStateMessage);
@@ -342,95 +290,27 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 						Element element = (Element) node;
-						String call = element.getElementsByTagName("call").item(0).getTextContent();
+						String call = helper_getOptionalElementText(element, "call");
-						String band = helper_getOptionalElementText(element, "band");
+						String rawBand = helper_getOptionalElementText(element, "band");
 						String gridSquare = helper_resolveLocatorFromContactInfo(element);
 						String points = helper_getOptionalElementText(element, "points");
 						LoggedQsoBand loggedBand = LoggedQsoBand.fromLoggerValue(rawBand);
 						ExternalLoggedQso loggedQso = ExternalLoggedQso.create(
 								call, loggedBand, gridSquare, "UCXLOG").orElse(null);
 						if (loggedQso == null) {
 							System.out.println("[ReadUDPFromUCX, warning]: QSO packet without usable callsign ignored");
 							continue;
 						}
 						System.out.println("[Readudp, info ]: received Current Element :" + node.getNodeName()
-								+ "call: " + call + " / " + band + " ----> " + points + " POINTS");
+								+ "call: " + call + " / " + rawBand + " ----> " + points + " POINTS");
 //						client.getChatPreferences().setBcn_contestScoreSum(Long.parseLong(points));
-						ChatMember workedCall = new ChatMember();
+						ChatMember workedCall = loggedQso.toWorkedChatMember();
-						workedCall.setCallSign(call);
+						Band workedBand = loggedBand == null ? null : loggedBand.getProjectBand();
-						workedCall.setWorked(true);
+						if (loggedBand == null && !rawBand.isEmpty()) {
-
+							System.out.println("[ReadUDPFromUCX, warning]: unexpected band value: \"" + rawBand + "\"");
 						if (gridSquare != null) {
 							workedCall.setQra(gridSquare);
 						}
 						Band workedBand = helper_resolveBandFromLoggerBand(band);
 						switch (band) {
 						case "50":
 						case "6m":
 						{
 							workedCall.setWorked50(true);
 							break;
 						}
 						case "70":
 						case "4m":
 						{
 							workedCall.setWorked70(true);
 							break;
 						}
 						case "144":
 						case "2m": //minos contest logger
 						{
 							workedCall.setWorked144(true);
 							break;
 						}
 						case "432":
 						case "70cm":
 							{
 								workedCall.setWorked432(true);
 								break;
 							}
 						case "1240": //ucxlog style
 						case "1296": //used for n1mm / Dxlog
 						case "23cm": //minos contest logger
 						{
 							workedCall.setWorked1240(true);
 							break;
 						}
 						case "2300":
 						case "13cm":
 							{
 							workedCall.setWorked2300(true);
 							break;
 						}
 						case "3400":
 						case "9cm":
 						{
 							workedCall.setWorked3400(true);
 							break;
 						}
 						case "5600":
 						case "6cm":
 						{
 							workedCall.setWorked5600(true);
 							break;
 						}
 						case "10G":
 						case "3cm":
 						{
 							workedCall.setWorked10G(true);
                            break;
 						}
 							default:
 								System.out.println("[ReadUDPFromUCX, Error:] unexpected band value: \"" + band + "\"");
 								break;
 						}
 						{
@@ -444,60 +324,7 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 //							asd //TODO: Check if callsign and callsignraw is similar, then mark first and further via new checklistforchatmembermultiplemethod with array of indize
-							ArrayList<Integer> markTheseChattersAsWorked = client.checkListForChatMemberIndexesByCallSign(workedCall);
+							client.applyExternalLoggedQso(loggedQso);
 							if (markTheseChattersAsWorked.isEmpty()) {
 								//Worked call is not part of the chatmember list
 							} else {
 								for (int index : markTheseChattersAsWorked) {
 									modifyThat = client.getLst_chatMemberList().get(index);
 									modifyThat.setWorked(true);
 									if (workedCall.isWorked50()) {
 										modifyThat.setWorked50(true);
 									} else if (workedCall.isWorked70()) {
 										modifyThat.setWorked70(true);
 									} else if (workedCall.isWorked144()) {
 										modifyThat.setWorked144(true);
 									} else if (workedCall.isWorked432()) {
 										modifyThat.setWorked432(true);
 									} else if (workedCall.isWorked1240()) {
 										modifyThat.setWorked1240(true);
 									} else if (workedCall.isWorked2300()) {
 										modifyThat.setWorked2300(true);
 									} else if (workedCall.isWorked3400()) {
 										modifyThat.setWorked3400(true);
 									} else if (workedCall.isWorked5600()) {
 										modifyThat.setWorked5600(true);
 									} else if (workedCall.isWorked10G()) {
 										modifyThat.setWorked10G(true);
 									}
 								}
 								try {
 									GuiUtils.triggerGUIFilteredChatMemberListChange(this.client);
 									// BEGIN PATCH: trigger band-upgrade hint after log entry (UCXLog)
 									try {
 										client.onExternalLogEntryReceived(workedCall.getCallSignRaw());
 									} catch (Exception e) {
 										System.out.println("[UCXUDPRcvr, warning]: band-upgrade hint failed: " + e.getMessage());
 									}
 								} catch (Exception IllegalStateException) {
 									//do nothing, as it works...
 								}
 							}
 							/**
 							 * old mechanic to markup worked stations in the chatmember table
@@ -574,7 +401,8 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 						}
 						if (workedBand != null && gridSquare != null) {
-							this.client.registerWorkedGrossField(workedBand, gridSquare, workedCall, "UCXLOG");
+							this.client.registerWorkedGrossField(
 									workedBand, gridSquare, workedCall, loggedQso.getSource());
 						}
 						boolean isInChat = this.client.getDbHandler().updateWkdInfoOnChatMember(workedCall);
@@ -609,17 +437,9 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 						bufwrtrRawMSGOut = new BufferedWriter(fileWriterPersistUDPToFile);
-						if (modifyThat != null) {
+						bufwrtrRawMSGOut.write("\n" + workedCall.toString());
-							bufwrtrRawMSGOut.write("\n" + modifyThat.toString());
+						bufwrtrRawMSGOut.flush();
-							bufwrtrRawMSGOut.flush();
+						bufwrtrRawMSGOut.close();
 							bufwrtrRawMSGOut.close();
 						} else {
 							bufwrtrRawMSGOut.write("\n" + workedCall.toString());
 							bufwrtrRawMSGOut.flush();
 							bufwrtrRawMSGOut.close();
 						}
 					}
 				}
@@ -771,4 +591,4 @@ public class ReadUDPbyUCXMessageThread extends Thread {
 		}
 	}
-}
+}
@@ -1,5 +1,7 @@
 package kst4contest.controller;
 import java.nio.file.Path;
 import kst4contest.model.ThreadStateMessage;
 public interface StatusUpdateListener {
@@ -33,4 +35,13 @@ public interface StatusUpdateListener {
        // Optional for non-UI listeners.
    }
-}
+    /**
     * Called after KST4Contest successfully creates a missing Simplelogfile.
     *
     * @param filePath absolute path of the newly created file
     */
    default void onSimpleLogFileCreated(Path filePath) {
        // Optional for non-UI listeners.
    }
 }
@@ -1,12 +1,13 @@
 package kst4contest.controller;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
-import java.io.InputStreamReader;
+import java.nio.charset.Charset;
-import java.util.HashMap;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.HashSet;
 import java.util.Locale;
 import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -14,73 +15,50 @@ import kst4contest.model.ChatMember;
 public class UCXLogFileToHashsetParser {
-	public BufferedReader fileReader;
+	private static final Pattern CALL_SIGN_PATTERN = Pattern.compile(
-//	private final String PTRN_CallSign = "(([a-zA-Z]{1,2}[\\d{1}]?\\/)?(\\d{1}[a-zA-Z][\\d{1}][a-zA-Z]{1,3})((\\/p)|(\\/\\d))?)|(([a-zA-Z0-9]{1,2}[\\d{1}]?\\/)?(([a-zA-Z]{1,2}(\\d{1}[a-zA-Z]{1,4})))((\\/p)|(\\/\\d))?)"; //OLD, S51AR for example will not work
+			"(([a-zA-Z]{1,2}[\\d]{1}?\\/)?(\\d{1}[a-zA-Z][\\d]{1}[a-zA-Z]{1,3})((\\/p)|(\\/\\d))?)"
-	private final String PTRN_CallSign = "(([a-zA-Z]{1,2}[\\d]{1}?\\/)?(\\d{1}[a-zA-Z][\\d]{1}[a-zA-Z]{1,3})((\\/p)|(\\/\\d))?)|(([a-zA-Z0-9]{1,2}[\\d]{1}?\\/)?(([a-zA-Z]{1,2}(\\d{1}[a-zA-Z]{1,4})))((\\/p)|(\\/\\d))?)|([A-Z]\\d{2}[A-Z]{1,3})";
+					+ "|(([a-zA-Z0-9]{1,2}[\\d]{1}?\\/)?(([a-zA-Z]{1,2}(\\d{1}[a-zA-Z]{1,4})))((\\/p)|(\\/\\d))?)"
-
+					+ "|([A-Z]\\d{2}[A-Z]{1,3})");
 	private final Path logFile;
 	public UCXLogFileToHashsetParser(String filePathAndName) {
-
+		this.logFile = Path.of(filePathAndName);
 		try {
 			fileReader = new BufferedReader(new InputStreamReader(new FileInputStream(new File(filePathAndName))));
 		} catch (FileNotFoundException e) {
 			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
 	}
-	/**
+	private String findLastCallSign(String line) {
-	 * check if a line of the ucxlog-Logfile inhibits a Callsign<br/>
+		Matcher matcher = CALL_SIGN_PATTERN.matcher(line);
-	 * <b>returns ChatMember = null, if no frequency found</b>
+		String matchedCallSign = "";
 	 * 
 	 * @param chatMessage
 	 */
 	private ChatMember checkIfLineInhibitsCallSign(String line) {
 		Pattern pattern = Pattern.compile(PTRN_CallSign);
 		Matcher matcher = pattern.matcher(line);
 		String matchedString = "";
 		while (matcher.find()) {
-
+			matchedCallSign = matcher.group();
 			matchedString = matcher.group();
 //			System.out.println("[UCXLogFile:] Processed worked Callsign from file: " + matchedString);
 		}
-		ChatMember newChatMember = new ChatMember();
+		return matchedCallSign.toUpperCase(Locale.ROOT);
 		newChatMember.setCallSign(matchedString.toUpperCase());
 		return newChatMember;
 	}
 	/**
-	 * Parses an ucxlog-live-file (full qualified path given by constructor
+	 * Parses the selected log file and returns every detected station as a
-	 * argument), looks by regex for callsigns and builds a hashmap with only one
+	 * normalized base callsign. The reader is closed after each pass so the logging
-	 * entry by callsign
+	 * application can continue replacing or rotating the file.
 	 *
 	 * @return unique normalized base callsigns found in the file
 	 * @throws IOException if the file cannot be read
 	 */
-	public HashMap<String, String> parse() throws IOException {
+	public Set<String> parse() throws IOException {
 		Set<String> workedBaseCalls = new HashSet<>();
-		HashMap<String, String> chatMemberMap = new HashMap();
+		try (BufferedReader fileReader = Files.newBufferedReader(logFile, Charset.defaultCharset())) {
-
+			String line;
-		String line;
+			while ((line = fileReader.readLine()) != null) {
-		while ((line = fileReader.readLine()) != null) {
+				String matchedCallSign = findLastCallSign(line);
-//			System.out.println("raw: " + line);
+				String baseCallSign = ChatMember.normalizeCallSignToBaseCallSign(matchedCallSign);
-			ChatMember temp = checkIfLineInhibitsCallSign(line);
+				if (baseCallSign != null && !baseCallSign.isBlank()) {
-
+					workedBaseCalls.add(baseCallSign.toUpperCase(Locale.ROOT));
-			if (temp.getCallSign() != "") {
+				}
 				chatMemberMap.put(temp.getCallSign(), temp.getCallSign());
 			}
 		}
 //		System.out.println(chatMemberMap.size());
 		return chatMemberMap;
 		return workedBaseCalls;
 	}
 }
@@ -1,325 +1,100 @@
 package kst4contest.controller;
 import java.io.File;
 import java.io.IOException;
-import java.util.HashMap;
+import java.nio.file.FileAlreadyExistsException;
-import java.util.Iterator;
+import java.nio.file.Files;
 import java.nio.file.InvalidPathException;
 import java.nio.file.Path;
 import java.util.Set;
 import java.util.TimerTask;
-
+import java.util.logging.Level;
-import javafx.collections.ObservableList;
+import java.util.logging.Logger;
 import kst4contest.model.ChatMember;
 import kst4contest.model.ClusterMessage;
 import kst4contest.view.GuiUtils;
 public class UserActualizationTask extends TimerTask {
-	private ChatController client;
+	private static final Logger LOGGER = Logger.getLogger(UserActualizationTask.class.getName());
 	private final ChatController client;
 	public UserActualizationTask(ChatController client) {
 		this.client = client;
 	}
 	@Override
 	public void run() {
 		Thread.currentThread().setName("UserActualizationTask");
-		/*
+		try {
-		 * File-based log synchronization is optional. Do not create, open or parse the
+			updateWorkedCallSignsFromFile();
-		 * configured file while the feature is disabled.
+		} catch (RuntimeException exception) {
-		 */
+			LOGGER.log(Level.WARNING,
 					"Unexpected failure while updating Worked callsigns from the Simplelogfile; "
 							+ "the periodic task will continue.",
 					exception);
 		}
 	}
 	private void updateWorkedCallSignsFromFile() {
 		if (!client.getChatPreferences().isLogsynch_fileBasedWkdCallInterpreterEnabled()) {
 			return;
 		}
-//		System.out.println("[Useract: ] Thread runned now");
+		String configuredFileName = client.getChatPreferences()
-
+				.getLogsynch_fileBasedWkdCallInterpreterFileNameReadOnly();
-//		System.out.println("***********************Useract started");
+		if (configuredFileName == null || configuredFileName.isBlank()) {
-
+			LOGGER.warning("Cannot read the Simplelogfile because no file is selected.");
-		/**
+			return;
 		 * ******************************************since here: old mechanic for
 		 * marking worked stations by .ucx-file
 		 */
 		HashMap<String, String> fetchedWorkedSet = new HashMap<>();
 //		HashMap<String, String> fetchedWorkedSetUdpBckup = new HashMap<>();
 		File f = new File(this.client.getChatPreferences().getLogsynch_fileBasedWkdCallInterpreterFileNameReadOnly());
 		if (!f.exists() && !f.isDirectory()) {
 			try {
 				f.createNewFile();
 			} catch (IOException e) {
 				// TODO Auto-generated catch block
 				e.printStackTrace();
 			}
 		}
-		UCXLogFileToHashsetParser getWorkedCallsignsOfUCXLogFile = new UCXLogFileToHashsetParser(
+		final Path logFile;
-				this.client.getChatPreferences().getLogsynch_fileBasedWkdCallInterpreterFileNameReadOnly());
+		try {
 			logFile = Path.of(configuredFileName).toAbsolutePath().normalize();
 		} catch (InvalidPathException exception) {
 			LOGGER.log(Level.WARNING,
 					"Cannot use the configured Simplelogfile path: " + configuredFileName,
 					exception);
 			return;
 		}
 		boolean created = createMissingLogFile(logFile);
 		if (!Files.isRegularFile(logFile)) {
 			return;
 		}
 		try {
-			fetchedWorkedSet = getWorkedCallsignsOfUCXLogFile.parse();
+			Set<String> workedBaseCalls = new UCXLogFileToHashsetParser(logFile.toString()).parse();
-
+			client.applySimpleLogWorkedBaseCalls(workedBaseCalls);
-			System.out.println("USERACT: fetchedWorkedSet size: " + fetchedWorkedSet.size());
+			LOGGER.log(Level.FINE,
-
+					"Read {0} unique base callsigns from Simplelogfile {1}.",
-		} catch (IOException e) {
+					new Object[] { workedBaseCalls.size(), logFile });
-			// TODO Auto-generated catch block
+		} catch (IOException exception) {
-			e.printStackTrace();
+			LOGGER.log(Level.WARNING, "Cannot read Simplelogfile " + logFile, exception);
 		}
-		ObservableList<ChatMember> praktiKSTActiveUserList = this.client.getLst_chatMemberList();
+		if (created) {
-
+			client.notifySimpleLogFileCreated(logFile);
 		for (Iterator iterator = praktiKSTActiveUserList.iterator(); iterator.hasNext();) {
 			ChatMember chatMember = (ChatMember) iterator.next();
 //			System.out.println(chatMember.getCallSign());
 //			System.out.println("USERACT active user list entries " + praktiKSTActiveUserList.size());
 			if (fetchedWorkedSet.containsKey(chatMember.getCallSign())) {
 				chatMember.setWorked(true);
 				System.out.println("[USERACT, info:] marking Chatuser " + chatMember.getCallSign()
 						+ " as worked, based on READONLY-Logfile.");
 			}
 //			if (fetchedWorkedSetUdpBckup.containsKey(chatMember.getCallSign())) {
 //				chatMember.setWorked(true);
 //				System.out.println("[USERACT, info:] marking Chatuser " + chatMember.getCallSign() + " as worked, based on UDPLsnBackup-Logfile.");
 //			}
 //			GuiUtils.triggerGUIFilteredChatMemberListChange(this.client); //todo: quick and dirty gui fix
 		}
 		ObservableList<ClusterMessage> praktiKSTClusterList = this.client.getLst_clusterMemberList();
 		for (Iterator iterator = praktiKSTClusterList.iterator(); iterator.hasNext();) {
 			ClusterMessage clusterMessage = (ClusterMessage) iterator.next();
 			if (fetchedWorkedSet.containsKey(clusterMessage.getReceiver().getCallSign())) {
 				clusterMessage.setReceiverWkd(true);
 				System.out.println("[USERACT, info:] marking Clusterspotted "
 						+ clusterMessage.getReceiver().getCallSign() + " as worked.");
 			}
 //			if (fetchedWorkedSetUdpBckup.containsKey(clusterMessage.getReceiver().getCallSign())) {
 //				clusterMessage.setReceiverWkd(true);
 //				System.out.println("[USERACT, info:] marking Clusterspotted "
 //						+ clusterMessage.getReceiver().getCallSign() + " as worked.");
 //			}
 		}
 		/**
 		 * ******************************************end here: old mechanic for marking
 		 * worked stations by .ucx-file
 		 * 
 		 */
 		/**
 		 * ******************************************since here: new mechanic for
 		 * marking worked stations by udp/adif based information
 		 */
 //		HashMap<String, String> fetchedWorkedMap = new HashMap<>();
 //
 //		fetchedWorkedMap = this.client.getMap_ucxLogInfoWorkedCalls();
 //		ObservableList<ChatMember> praktiKSTActiveUserList1 = this.client.getLst_chatMemberList();
 //
 //		for (Iterator iterator = praktiKSTActiveUserList.iterator(); iterator.hasNext();) {
 //			ChatMember chatMember = (ChatMember) iterator.next();
 //
 //			if (fetchedWorkedMap.containsKey(chatMember.getCallSign())) {
 //				chatMember.setWorked(true);
 //				System.out.println("[USERACT, info:] marking Chatuser " + chatMember.getCallSign() + " as worked based on UDP Log Info Collector.");
 //			}
 //		}
 //		ObservableList<ClusterMessage> praktiKSTClusterList1 = this.client.getLst_clusterMemberList();
 //
 //		for (Iterator iterator = praktiKSTClusterList.iterator(); iterator.hasNext();) {
 //			ClusterMessage clusterMessage = (ClusterMessage) iterator.next();
 //
 //			if (fetchedWorkedMap.containsKey(clusterMessage.getReceiver().getCallSign())) {
 //				clusterMessage.setReceiverWkd(true);
 //				System.out.println("[USERACT, info:] marking Clusterspotted "
 //						+ clusterMessage.getReceiver().getCallSign() + " as worked based on UDP Log Info Collector.");
 //			}
 //
 //		}
 //
 //		UCXLogFileToHashsetParser getWorkedCallsignsOfUCXLogFile = new UCXLogFileToHashsetParser(
 //				"C:\\UcxLog\\Logs\\DO5AMF\\DVU322_I.UCX");
 //		try {
 //			fetchedWorkedSet = getWorkedCallsignsOfUCXLogFile.parse();
 //		} catch (IOException e) {
 //			// TODO Auto-generated catch block
 //			e.printStackTrace();
 //		}
 //
 //		ObservableList<ChatMember> praktiKSTActiveUserList = this.client.getLst_chatMemberList();
 //
 //		for (Iterator iterator = praktiKSTActiveUserList.iterator(); iterator.hasNext();) {
 //			ChatMember chatMember = (ChatMember) iterator.next();
 //
 //			if (fetchedWorkedSet.containsKey(chatMember.getCallSign())) {
 //				chatMember.setWorked(true);
 //				System.out.println("[USERACT, info:] marking Chatuser " + chatMember.getCallSign() + " as worked.");
 //			}
 //		}
 //
 //		
 //		ObservableList<ClusterMessage> praktiKSTClusterList = this.client.getLst_clusterMemberList();
 //
 //		for (Iterator iterator = praktiKSTClusterList.iterator(); iterator.hasNext();) {
 //			ClusterMessage clusterMessage = (ClusterMessage) iterator.next();
 //
 //			if (fetchedWorkedSet.containsKey(clusterMessage.getReceiver().getCallSign())) {
 //				clusterMessage.setReceiverWkd(true);
 //				System.out.println("[USERACT, info:] marking Clusterspotted "
 //						+ clusterMessage.getReceiver().getCallSign() + " as worked.");
 //			}
 //
 //		}
 		/**
 		 * ******************************************end here: new mechanic for marking
 		 * worked stations by udp/adif based information
 		 * 
 		 */
 //		System.out.println("[UserActualizationtask:] Userlist actualization will be performed now. " 
 //		          + LocalDateTime.ofInstant(Instant.ofEpochMilli(scheduledExecutionTime()), 
 //		          ZoneId.systemDefault()));
 //		ChatMessage actualizeUserMsg = new ChatMessage();
 //		actualizeUserMsg.setDirectedToServer(true);
 //		actualizeUserMsg.setMessage("/show users");
 //		client.getMessageTXBus().add(actualizeUserMsg);
 //		Enumeration<String> e = this.client.getChatMemberTable().keys();
 //
 //		while (e.hasMoreElements()) {
 //			String key = e.nextElement();
 //
 //			System.out.println(this.client.getChatMemberTable().get(key).getCallSign() + ", "
 //					+ this.client.getChatMemberTable().get(key).getQra() + ": "
 //					+ this.client.getChatMemberTable().get(key).getFrequency());
 //
 //		}
 //		System.out.println("[UserAct]: Show the Cluster with known frequencies now: ");
 //
 //		Enumeration<String> e2 = this.client.getdXClusterMemberTable().keys();
 //
 //		while (e2.hasMoreElements()) {
 //			String key = e2.nextElement();
 //
 //			System.out.println(this.client.getdXClusterMemberTable().get(key).getCallSign() + ", "
 //					+ this.client.getdXClusterMemberTable().get(key).getQra() + ": "
 //					+ this.client.getdXClusterMemberTable().get(key).getFrequency());
 //
 //		}
 //		for (int i = 0; i < 100; i++) {
 //			
 //			System.out.print("\n");  
 //		}
 		/**
 		 * keeepalive start
 		 */
 //		ChatMessage keepAliveMSG = new ChatMessage();
 //		keepAliveMSG.setMessageText("\r");
 //		keepAliveMSG.setMessageDirectedToServer(true);
 //
 //		System.out.println(new Utils4KST().time_generateCurrentMMDDhhmmTimeString() + " [UserAct]: Sending keepalive: "
 //				+ keepAliveMSG.getMessageText());
 //		/**
 //		 * Sending keepalive
 //		 */
 //		this.client.getMessageTXBus().add(keepAliveMSG);
 		/**
 		 * keeepalive end
 		 */
 //		System.out.println("[UserAct]: Show the Userlist with known frequencies sorted now: ");
 //		ObservableList<ChatMember> userlist = this.client.getLst_chatMemberList();
 //		for (Iterator iterator = userlist.iterator(); iterator.hasNext();) {
 //			ChatMember chatMember = (ChatMember) iterator.next();
 //			System.out.println("[Useract] Entry " + this.client.getLst_chatMemberList().indexOf(chatMember) + ": " + chatMember.getCallSign()); 
 //		}
 //
 //		String chatMembers ="";
 //		SortedSet<String> keys = new TreeSet<>(this.client.getChatMemberTable().keySet());
 //		for (String key : keys) {
 //			
 //			chatMembers += this.client.getChatMemberTable().get(key).getCallSign() + ", "
 //					+ this.client.getChatMemberTable().get(key).getName() + " in "
 //					+ this.client.getChatMemberTable().get(key).getQra() + " @ QRG: "
 //					+ this.client.getChatMemberTable().get(key).getFrequency() + "\n";
 //					
 //			System.out.println(this.client.getChatMemberTable().get(key).getCallSign() + ", "
 //					+ this.client.getChatMemberTable().get(key).getName() + " in "
 //					+ this.client.getChatMemberTable().get(key).getQra() + " @ QRG: "
 //					+ this.client.getChatMemberTable().get(key).getFrequency());
 //		}
 //		System.out.println("\n[UserAct]: Show the Clusterlist with known frequencies sorted now: ");
 //		String dxcMembers ="";
 //		SortedSet<String> keys2 = new TreeSet<>(this.client.getdXClusterMemberTable().keySet());
 //		for (String key : keys2) {
 //			System.out.println(this.client.getdXClusterMemberTable().get(key).getCallSign() + " in "
 //					+ this.client.getdXClusterMemberTable().get(key).getQra() + " @ QRG: "
 //					+ this.client.getdXClusterMemberTable().get(key).getFrequency());
 //			
 //			dxcMembers += this.client.getdXClusterMemberTable().get(key).getCallSign() + " in "
 //					+ this.client.getdXClusterMemberTable().get(key).getQra() + " @ QRG: "
 //					+ this.client.getdXClusterMemberTable().get(key).getFrequency();
 //			
 //		}
 //		File userListLogger = new File(new Utils4KST().time_generateCurrentMMddString() + "_praktiKST_userlist.txt");
 //
 //		FileWriter fileWriterRAWChatMSGOut = null;
 //		
 //		try {
 //			fileWriterRAWChatMSGOut = new FileWriter(userListLogger, true);
 //		} catch (IOException e1) {
 //			// TODO Auto-generated catch block
 //			e1.printStackTrace();
 //		}
 //
 //		BufferedWriter bufwrtrRawMSGOut;
 //		
 //		bufwrtrRawMSGOut = new BufferedWriter(fileWriterRAWChatMSGOut);
 //		System.out.println("#######################################" + chatMembers);
 //		try {
 //			bufwrtrRawMSGOut.write(new Utils4KST().time_generateCurrentMMDDhhmmTimeString() + " " +this.client.getChatMemberTable().size() + " Chatmembers:\n" + chatMembers+ "\n");
 //			bufwrtrRawMSGOut.write(new Utils4KST().time_generateCurrentMMDDhhmmTimeString() + " " + this.client.getdXClusterMemberTable().size() + " Clusterentries:\n" + dxcMembers + "\n");
 //			bufwrtrRawMSGOut.flush();
 //		} catch (IOException e) {
 //			// TODO Auto-generated catch block
 //			e.printStackTrace();
 //		}
 //		try {
 //			bufwrtrRawMSGOut.close();
 //		} catch (IOException e) {
 		// TODO Auto-generated catch block
 //			e.printStackTrace();
 //		}
 	}
 	private boolean createMissingLogFile(Path logFile) {
 		if (Files.exists(logFile)) {
 			if (!Files.isRegularFile(logFile)) {
 				LOGGER.log(Level.WARNING,
 						"The selected Simplelogfile path is not a regular file: {0}",
 						logFile);
 			}
 			return false;
 		}
 		try {
 			Files.createFile(logFile);
 			LOGGER.log(Level.INFO, "Created missing Simplelogfile {0}.", logFile);
 			return true;
 		} catch (FileAlreadyExistsException exception) {
 			return false;
 		} catch (IOException | SecurityException exception) {
 			LOGGER.log(Level.WARNING, "Cannot create Simplelogfile " + logFile, exception);
 			return false;
 		}
 	}
 }
@@ -0,0 +1,217 @@
 package kst4contest.controller;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.Optional;
 /**
 * Inventory of one Win-Test log, transported in an {@code IHAVE} packet.
 *
 * <p>Win-Test announces which QSO numbers of a log a station currently holds.
 * To keep the packet short the inventory is run-length encoded:</p>
 *
 * <pre>
 *   IHAVE: "Shack" "" "Shack@9" E 1 1 911-1-117
 *                     ^logId    ^  ^ ^ ^run lengths
 *                            origin | initial state
 *                                   first row
 * </pre>
 *
 * <p>The run lengths alternate between present and missing QSOs, starting with
 * the state given by {@code InitialState} at QSO number {@code FirstRow}. The
 * example above therefore means: QSOs 1 to 911 are present, QSO 912 is missing
 * and QSOs 913 to 1029 are present again.</p>
 *
 * <p>Unlike the wtKST implementation this parser honours {@code FirstRow}
 * instead of assuming that every inventory starts at QSO number one. Win-Test
 * splits long inventories into several packets, and a split inventory starts at
 * a higher first row.</p>
 */
 public final class WinTestIhaveInventory {
 	/** Where the sending station got the log from. */
 	public enum Origin {
 		/** The station owns the log or the operator is logged on there. */
 		OWNER,
 		/** The station only mirrors a log owned by somebody else. */
 		LOGGED_ELSE
 	}
 	/** Protects against endless loops caused by a corrupted run-length chain. */
 	private static final int MAX_SEGMENTS = 512;
 	private static final int EXPECTED_FIELD_COUNT = 5;
 	private final String logId;
 	private final Origin origin;
 	private final List<WinTestLogSegment> segments;
 	private WinTestIhaveInventory(String logId, Origin origin, List<WinTestLogSegment> segments) {
 		this.logId = logId;
 		this.origin = origin;
 		this.segments = segments;
 	}
 	/**
 	 * Parses an {@code IHAVE} packet.
 	 *
 	 * @param packet received packet
 	 * @return inventory, or an empty value when the packet is not a usable
 	 *         {@code IHAVE} announcement
 	 */
 	public static Optional<WinTestIhaveInventory> fromPacket(WinTestPacket packet) {
 		if (packet == null || !"IHAVE".equals(packet.getMessageType())) {
 			return Optional.empty();
 		}
 		List<String> fields = packet.getDataTokens();
 		if (fields.size() != EXPECTED_FIELD_COUNT) {
 			/*
 			 * Win-Test versions before 1.29 use a shorter IHAVE format without
 			 * run-length encoding. It carries no usable range information, so
 			 * the blind fallback of the sync service has to take over.
 			 */
 			return Optional.empty();
 		}
 		String parsedLogId = fields.get(0) == null ? "" : fields.get(0).trim();
 		if (parsedLogId.isEmpty()) {
 			return Optional.empty();
 		}
 		Origin parsedOrigin = parseOrigin(fields.get(1));
 		long firstRow = parseUnsignedValue(fields.get(2));
 		long initialState = parseUnsignedValue(fields.get(3));
 		if (firstRow < 1L || initialState < 0L || initialState > 1L) {
 			return Optional.empty();
 		}
 		List<WinTestLogSegment> parsedSegments =
 				parseRunLengths(fields.get(4), firstRow, initialState == 1L);
 		if (parsedSegments == null) {
 			return Optional.empty();
 		}
 		return Optional.of(new WinTestIhaveInventory(parsedLogId, parsedOrigin, parsedSegments));
 	}
 	private static Origin parseOrigin(String rawOrigin) {
 		if (rawOrigin == null) {
 			return Origin.OWNER;
 		}
 		String normalizedOrigin = rawOrigin.trim().toUpperCase(java.util.Locale.ROOT);
 		if ("E".equals(normalizedOrigin) || "LOGGEDELSE".equals(normalizedOrigin)) {
 			return Origin.LOGGED_ELSE;
 		}
 		return Origin.OWNER;
 	}
 	/**
 	 * Expands the hyphen-separated run lengths into ranges.
 	 *
 	 * @param rawRunLengths run-length chain such as {@code 911-1-117}
 	 * @param firstRow QSO number the first run starts at
 	 * @param startsPresent {@code true} when the first run describes present QSOs
 	 * @return ranges of present QSOs, or {@code null} for an unusable chain
 	 */
 	private static List<WinTestLogSegment> parseRunLengths(
 			String rawRunLengths,
 			long firstRow,
 			boolean startsPresent
 	) {
 		if (rawRunLengths == null || rawRunLengths.isBlank()) {
 			return null;
 		}
 		String[] runLengths = rawRunLengths.trim().split("-");
 		/*
 		 * A chain that starts with present QSOs has to end with a present run,
 		 * so its length is odd. A chain that starts with missing QSOs needs an
 		 * even length for the same reason.
 		 */
 		if (startsPresent) {
 			if (runLengths.length % 2 == 0) {
 				return null;
 			}
 		} else if (runLengths.length % 2 == 1 || runLengths.length < 2) {
 			return null;
 		}
 		List<WinTestLogSegment> parsedSegments = new ArrayList<>();
 		long cursor = firstRow;
 		boolean present = startsPresent;
 		for (String runLength : runLengths) {
 			long count = parseUnsignedValue(runLength);
 			if (count < 0L) {
 				return null;
 			}
 			if (present && count > 0L) {
 				if (parsedSegments.size() >= MAX_SEGMENTS) {
 					return null;
 				}
 				parsedSegments.add(new WinTestLogSegment(cursor, cursor + count - 1L));
 			}
 			cursor += count;
 			present = !present;
 		}
 		return parsedSegments;
 	}
 	private static long parseUnsignedValue(String rawValue) {
 		if (rawValue == null) {
 			return -1L;
 		}
 		try {
 			return Long.parseLong(rawValue.trim());
 		} catch (NumberFormatException exception) {
 			return -1L;
 		}
 	}
 	/**
 	 * @return log identity in the form {@code StationName@LogUniqueID}
 	 */
 	public String getLogId() {
 		return logId;
 	}
 	public Origin getOrigin() {
 		return origin;
 	}
 	/**
 	 * @return ranges of QSO numbers the announcing station holds
 	 */
 	public List<WinTestLogSegment> getSegments() {
 		return Collections.unmodifiableList(segments);
 	}
 	/**
 	 * @return highest announced QSO number, or {@code 0} for an empty inventory
 	 */
 	public long getHighestQsoNumber() {
 		long highestQsoNumber = 0L;
 		for (WinTestLogSegment segment : segments) {
 			if (segment.getCountTo() > highestQsoNumber) {
 				highestQsoNumber = segment.getCountTo();
 			}
 		}
 		return highestQsoNumber;
 	}
 	@Override
 	public String toString() {
 		return logId + " " + origin + " " + segments;
 	}
 }
@@ -0,0 +1,60 @@
 package kst4contest.controller;
 /**
 * Consecutive range of Win-Test QSO numbers inside one log.
 *
 * <p>Win-Test numbers the QSOs of every log continuously. The {@code IHAVE}
 * inventory of a log is therefore expressed as a list of ranges that are
 * present in that log. A range is inclusive on both ends.</p>
 */
 public final class WinTestLogSegment {
 	private final long countFrom;
 	private final long countTo;
 	/**
 	 * @param countFrom first QSO number of the range
 	 * @param countTo last QSO number of the range
 	 */
 	public WinTestLogSegment(long countFrom, long countTo) {
 		this.countFrom = countFrom;
 		this.countTo = countTo;
 	}
 	public long getCountFrom() {
 		return countFrom;
 	}
 	public long getCountTo() {
 		return countTo;
 	}
 	/**
 	 * @return number of QSOs covered by this range, never negative
 	 */
 	public long getCount() {
 		return countTo < countFrom ? 0L : countTo - countFrom + 1L;
 	}
 	@Override
 	public boolean equals(Object other) {
 		if (this == other) {
 			return true;
 		}
 		if (!(other instanceof WinTestLogSegment)) {
 			return false;
 		}
 		WinTestLogSegment otherSegment = (WinTestLogSegment) other;
 		return countFrom == otherSegment.countFrom && countTo == otherSegment.countTo;
 	}
 	@Override
 	public int hashCode() {
 		return Long.hashCode(countFrom) * 31 + Long.hashCode(countTo);
 	}
 	@Override
 	public String toString() {
 		return countFrom + "-" + countTo;
 	}
 }
@@ -0,0 +1,611 @@
 package kst4contest.controller;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.NavigableSet;
 import java.util.Optional;
 import java.util.TreeSet;
 import java.util.function.LongSupplier;
 import java.util.function.Supplier;
 /**
 * Recovers the part of a Win-Test log that was written before KST4Contest was
 * started.
 *
 * <p>Win-Test broadcasts every new QSO as an {@code ADDQSO} packet. A client
 * that joins the network later never sees the QSOs logged before it started, so
 * stations already worked would still be shown as not worked. Win-Test also
 * offers a pull mechanism for exactly this situation, and this service is the
 * port of the wtKST {@code WtLogSync} implementation of it:</p>
 *
 * <ol>
 *     <li>a Win-Test station announces itself with {@code HELLO} or, if its log
 *         was opened before we started listening, with its periodic
 *         {@code STATUS};</li>
 *     <li>its periodic {@code IHAVE} packets announce which QSO numbers of
 *         which log it holds;</li>
 *     <li>missing ranges are requested with {@code NEEDQSO}, at most
 *         {@value #MAX_QSOS_PER_REQUEST} QSOs per request;</li>
 *     <li>Win-Test answers with ordinary {@code ADDQSO} packets that are
 *         addressed to us instead of being broadcast.</li>
 * </ol>
 *
 * <p>Because the answers are ordinary {@code ADDQSO} packets, the recovered
 * QSOs run through the same Worked handling as live QSOs. This service only
 * decides what still has to be requested; it neither touches the database nor
 * the user interface.</p>
 *
 * <p>If a station is known but no usable {@code IHAVE} inventory arrives within
 * {@value #INVENTORY_GRACE_PERIOD_MS} ms, a blind fallback requests fixed
 * blocks starting at QSO number one until a block stays unanswered. That covers
 * Win-Test versions whose {@code IHAVE} format carries no run lengths.</p>
 *
 * <p>Deviation from wtKST: wtKST discards its whole QSO table whenever a
 * {@code HELLO} arrives, because it displays that table. KST4Contest only
 * accumulates Worked state, where a stale entry is harmless while a discarded
 * one would cause the complete log to be requested and written again. The log
 * identity {@code StationName@LogUniqueID} already changes when Win-Test opens
 * a different log, so nothing is cleared here.</p>
 */
 public class WinTestLogSyncService {
 	/** Win-Test answers at most this many QSOs for one NEEDQSO request. */
 	static final int MAX_QSOS_PER_REQUEST = 50;
 	/** Time after which an unanswered request is retried elsewhere. */
 	static final long REQUEST_TIMEOUT_MS = 5000L;
 	/** Shortest distance between two evaluations without a pending trigger. */
 	static final long TICK_INTERVAL_MS = 2000L;
 	/** Waiting time for a usable IHAVE before the blind fallback starts. */
 	static final long INVENTORY_GRACE_PERIOD_MS = 15000L;
 	/** Upper bound for the blind fallback, equals 10000 QSOs. */
 	static final int MAX_BLIND_BLOCKS = 200;
 	/** Guards the gap search against a corrupted inventory. */
 	private static final long MAX_SCANNED_QSO_NUMBERS = 200000L;
 	/**
 	 * Sends a NEEDQSO request to a Win-Test station.
 	 */
 	@FunctionalInterface
 	public interface NeedQsoSender {
 		/**
 		 * @param targetStation Win-Test station name the request is sent to
 		 * @param logId log identity in the form {@code StationName@LogUniqueID}
 		 * @param countFrom first requested QSO number
 		 * @param countTo last requested QSO number
 		 */
 		void sendNeedQso(String targetStation, String logId, long countFrom, long countTo);
 	}
 	/** Progress of the log recovery, used for status reporting. */
 	public enum SyncState {
 		/** No Win-Test station seen yet. */
 		IDLE,
 		/** A station is known, but nothing has been requested yet. */
 		STATION_DETECTED,
 		/** QSOs are being requested. */
 		SYNCING,
 		/** Everything announced by the known stations has been received. */
 		IN_SYNC
 	}
 	private final NeedQsoSender needQsoSender;
 	private final Supplier<String> ownStationNameSupplier;
 	private final LongSupplier clock;
 	/** Inventories per Win-Test station, keyed by log identity. */
 	private final Map<String, Map<String, WinTestIhaveInventory>> inventoriesByStation =
 			new LinkedHashMap<>();
 	/** QSO numbers already received, keyed by log identity. */
 	private final Map<String, NavigableSet<Long>> receivedQsoNumbersByLogId = new HashMap<>();
 	/** State of the blind fallback, keyed by log identity. */
 	private final Map<String, BlindScan> blindScansByLogId = new LinkedHashMap<>();
 	private PendingRequest pendingRequest;
 	private long firstStationSeenAtMs;
 	private boolean usableInventorySeen;
 	private long lastTickMs;
 	private boolean tickDueImmediately;
 	private SyncState state = SyncState.IDLE;
 	/**
 	 * @param needQsoSender transport used for NEEDQSO requests
 	 * @param ownStationNameSupplier own Win-Test station name, read late because
 	 *                               it can be changed in the settings at runtime
 	 */
 	public WinTestLogSyncService(
 			NeedQsoSender needQsoSender,
 			Supplier<String> ownStationNameSupplier
 	) {
 		this(needQsoSender, ownStationNameSupplier, System::currentTimeMillis);
 	}
 	/**
 	 * @param needQsoSender transport used for NEEDQSO requests
 	 * @param ownStationNameSupplier own Win-Test station name
 	 * @param clock time source in milliseconds
 	 */
 	WinTestLogSyncService(
 			NeedQsoSender needQsoSender,
 			Supplier<String> ownStationNameSupplier,
 			LongSupplier clock
 	) {
 		this.needQsoSender = needQsoSender;
 		this.ownStationNameSupplier = ownStationNameSupplier;
 		this.clock = clock;
 	}
 	/**
 	 * Registers a Win-Test station seen in a HELLO or STATUS packet.
 	 *
 	 * @param stationName Win-Test station name
 	 */
 	public synchronized void onStationSeen(String stationName) {
 		if (stationName == null || stationName.isBlank()) {
 			return;
 		}
 		String normalizedStationName = stationName.trim();
 		if (normalizedStationName.equalsIgnoreCase(resolveOwnStationName())) {
 			// our own packets, nothing to synchronize from
 			return;
 		}
 		if (inventoriesByStation.putIfAbsent(normalizedStationName, new LinkedHashMap<>()) == null) {
 			tickDueImmediately = true;
 		}
 		if (firstStationSeenAtMs == 0L) {
 			firstStationSeenAtMs = clock.getAsLong();
 		}
 		if (state == SyncState.IDLE) {
 			state = SyncState.STATION_DETECTED;
 		}
 	}
 	/**
 	 * Takes over the inventory of an IHAVE packet.
 	 *
 	 * @param packet received IHAVE packet
 	 */
 	public synchronized void onIhaveReceived(WinTestPacket packet) {
 		if (packet == null || !packet.isAddressedTo(resolveOwnStationName())) {
 			return;
 		}
 		Optional<WinTestIhaveInventory> parsedInventory = WinTestIhaveInventory.fromPacket(packet);
 		if (parsedInventory.isEmpty()) {
 			return;
 		}
 		WinTestIhaveInventory inventory = parsedInventory.get();
 		onStationSeen(packet.getSource());
 		Map<String, WinTestIhaveInventory> stationInventories =
 				inventoriesByStation.get(packet.getSource() == null ? "" : packet.getSource().trim());
 		if (stationInventories == null) {
 			return;
 		}
 		WinTestIhaveInventory previousInventory =
 				stationInventories.put(inventory.getLogId(), inventory);
 		if (previousInventory == null
 				|| !previousInventory.getSegments().equals(inventory.getSegments())) {
 			System.out.println("[WinTest LogSync] inventory of " + inventory.getLogId()
 					+ " from " + packet.getSource()
 					+ " (" + inventory.getOrigin() + "): " + inventory.getSegments());
 		}
 		usableInventorySeen = true;
 		blindScansByLogId.remove(inventory.getLogId());
 		tickDueImmediately = true;
 	}
 	/**
 	 * Registers a QSO received in an ADDQSO packet.
 	 *
 	 * @param logId log identity in the form {@code StationName@LogUniqueID}
 	 * @param qsoNumber Win-Test QSO number inside that log
 	 * @return {@code true} when this QSO was not known before, and therefore
 	 *         still has to be applied to Worked state and database
 	 */
 	public synchronized boolean registerReceivedQso(String logId, long qsoNumber) {
 		if (logId == null || logId.isBlank() || qsoNumber <= 0L) {
 			// without a usable identity the QSO cannot be deduplicated
 			return true;
 		}
 		NavigableSet<Long> receivedQsoNumbers =
 				receivedQsoNumbersByLogId.computeIfAbsent(logId.trim(), key -> new TreeSet<>());
 		boolean isNewQso = receivedQsoNumbers.add(qsoNumber);
 		if (pendingRequest != null
 				&& pendingRequest.logId.equals(logId.trim())
 				&& qsoNumber >= pendingRequest.countFrom
 				&& qsoNumber <= pendingRequest.countTo) {
 			pendingRequest.answeredQsoCount++;
 			if (qsoNumber == pendingRequest.countTo
 					|| pendingRequest.answeredQsoCount >= pendingRequest.getRequestedQsoCount()) {
 				PendingRequest completedRequest = pendingRequest;
 				pendingRequest = null;
 				if (completedRequest.blind) {
 					finishBlindBlock(completedRequest);
 				}
 				tickDueImmediately = true;
 			}
 		}
 		return isNewQso;
 	}
 	/**
 	 * Advances the recovery. Called after every received packet and on every
 	 * receive timeout of the listener; an internal interval keeps the actual
 	 * work rare while a satisfied request triggers the next one immediately.
 	 */
 	public synchronized void tick() {
 		long now = clock.getAsLong();
 		if (!tickDueImmediately && now - lastTickMs < TICK_INTERVAL_MS) {
 			return;
 		}
 		lastTickMs = now;
 		tickDueImmediately = false;
 		if (pendingRequest != null) {
 			if (now - pendingRequest.sentAtMs < REQUEST_TIMEOUT_MS) {
 				return;
 			}
 			handlePendingTimeout();
 			return;
 		}
 		if (requestNextMissingRange(now)) {
 			return;
 		}
 		if (requestNextBlindBlock(now)) {
 			return;
 		}
 		if (state == SyncState.SYNCING) {
 			state = SyncState.IN_SYNC;
 		}
 	}
 	/**
 	 * @return current progress of the recovery
 	 */
 	public synchronized SyncState getState() {
 		return state;
 	}
 	/**
 	 * @return number of QSO numbers known for the given log
 	 */
 	synchronized int getKnownQsoCount(String logId) {
 		NavigableSet<Long> receivedQsoNumbers = receivedQsoNumbersByLogId.get(logId);
 		return receivedQsoNumbers == null ? 0 : receivedQsoNumbers.size();
 	}
 	private void handlePendingTimeout() {
 		PendingRequest timedOutRequest = pendingRequest;
 		pendingRequest = null;
 		if (timedOutRequest.blind) {
 			finishBlindBlock(timedOutRequest);
 			return;
 		}
 		String alternativeStation =
 				findAlternativeStation(timedOutRequest.logId, timedOutRequest.targetStation);
 		System.out.println("[WinTest LogSync] no answer from " + timedOutRequest.targetStation
 				+ " for " + timedOutRequest.logId + " "
 				+ timedOutRequest.countFrom + "-" + timedOutRequest.countTo);
 		if (alternativeStation != null) {
 			sendRequest(
 					alternativeStation,
 					timedOutRequest.logId,
 					timedOutRequest.countFrom,
 					timedOutRequest.countTo,
 					false,
 					clock.getAsLong()
 			);
 			return;
 		}
 		/*
 		 * Nobody else holds this log. The silent station is dropped and returns
 		 * with its next STATUS or IHAVE packet.
 		 */
 		System.out.println("[WinTest LogSync] dropping silent station "
 				+ timedOutRequest.targetStation + ", waiting for its next STATUS or IHAVE");
 		inventoriesByStation.remove(timedOutRequest.targetStation);
 		tickDueImmediately = true;
 	}
 	private String findAlternativeStation(String logId, String excludedStation) {
 		for (Map.Entry<String, Map<String, WinTestIhaveInventory>> station
 				: inventoriesByStation.entrySet()) {
 			if (station.getKey().equals(excludedStation)) {
 				continue;
 			}
 			if (station.getValue().containsKey(logId)) {
 				return station.getKey();
 			}
 		}
 		return null;
 	}
 	/**
 	 * Looks for the first announced QSO range that is still missing and
 	 * requests it. Stations that own a log are preferred over stations that
 	 * only mirror it.
 	 *
 	 * @param now current time in milliseconds
 	 * @return {@code true} when a request was sent
 	 */
 	private boolean requestNextMissingRange(long now) {
 		for (int pass = 0; pass < 2; pass++) {
 			boolean preferOwner = pass == 0;
 			for (Map.Entry<String, Map<String, WinTestIhaveInventory>> station
 					: new ArrayList<>(inventoriesByStation.entrySet())) {
 				for (WinTestIhaveInventory inventory : new ArrayList<>(station.getValue().values())) {
 					boolean isOwner = inventory.getOrigin() == WinTestIhaveInventory.Origin.OWNER;
 					if (preferOwner != isOwner) {
 						continue;
 					}
 					long[] missingRange = findMissingRange(
 							inventory.getSegments(),
 							receivedQsoNumbersByLogId.get(inventory.getLogId())
 					);
 					if (missingRange == null) {
 						continue;
 					}
 					sendRequest(
 							station.getKey(),
 							inventory.getLogId(),
 							missingRange[0],
 							missingRange[1],
 							false,
 							now
 					);
 					return true;
 				}
 			}
 		}
 		return false;
 	}
 	/**
 	 * Determines the next missing QSO range of one log.
 	 *
 	 * <p>wtKST compares its own segment list against the announced one and
 	 * derives the request bounds from the segment indices. Searching the gap
 	 * directly produces the same ranges for the ordinary cases, cannot run past
 	 * the end of either list, and never asks for QSO numbers that are already
 	 * known.</p>
 	 *
 	 * @param segments ranges announced by the station
 	 * @param receivedQsoNumbers QSO numbers already received for this log
 	 * @return first missing range as {@code {countFrom, countTo}}, or
 	 *         {@code null} when nothing is missing
 	 */
 	static long[] findMissingRange(
 			List<WinTestLogSegment> segments,
 			NavigableSet<Long> receivedQsoNumbers
 	) {
 		if (segments == null) {
 			return null;
 		}
 		long remainingScanBudget = MAX_SCANNED_QSO_NUMBERS;
 		for (WinTestLogSegment segment : segments) {
 			for (long qsoNumber = segment.getCountFrom();
 					qsoNumber <= segment.getCountTo();
 					qsoNumber++) {
 				remainingScanBudget--;
 				if (remainingScanBudget < 0L) {
 					return null;
 				}
 				if (receivedQsoNumbers != null && receivedQsoNumbers.contains(qsoNumber)) {
 					continue;
 				}
 				long countFrom = qsoNumber;
 				long countTo = countFrom;
 				while (countTo < segment.getCountTo()
 						&& countTo - countFrom + 1L < MAX_QSOS_PER_REQUEST
 						&& (receivedQsoNumbers == null || !receivedQsoNumbers.contains(countTo + 1L))) {
 					countTo++;
 				}
 				return new long[] { countFrom, countTo };
 			}
 		}
 		return null;
 	}
 	/**
 	 * Requests the next fixed block of a log whose station never sent a usable
 	 * inventory.
 	 *
 	 * @param now current time in milliseconds
 	 * @return {@code true} when a request was sent
 	 */
 	private boolean requestNextBlindBlock(long now) {
 		if (usableInventorySeen || firstStationSeenAtMs == 0L) {
 			return false;
 		}
 		if (now - firstStationSeenAtMs < INVENTORY_GRACE_PERIOD_MS) {
 			return false;
 		}
 		for (String logId : new ArrayList<>(receivedQsoNumbersByLogId.keySet())) {
 			BlindScan blindScan = blindScansByLogId.computeIfAbsent(logId, key -> new BlindScan());
 			if (blindScan.completed || blindScan.requestedBlockCount >= MAX_BLIND_BLOCKS) {
 				continue;
 			}
 			String targetStation = resolveStationForLogId(logId);
 			if (targetStation == null) {
 				continue;
 			}
 			blindScan.requestedBlockCount++;
 			sendRequest(
 					targetStation,
 					logId,
 					blindScan.nextCountFrom,
 					blindScan.nextCountFrom + MAX_QSOS_PER_REQUEST - 1L,
 					true,
 					now
 			);
 			return true;
 		}
 		return false;
 	}
 	private void finishBlindBlock(PendingRequest finishedRequest) {
 		BlindScan blindScan = blindScansByLogId.get(finishedRequest.logId);
 		if (blindScan == null) {
 			return;
 		}
 		System.out.println("[WinTest LogSync] blind block " + finishedRequest.countFrom
 				+ "-" + finishedRequest.countTo + " of " + finishedRequest.logId
 				+ " answered with " + finishedRequest.answeredQsoCount + " QSOs");
 		if (finishedRequest.answeredQsoCount == 0) {
 			// the log ends before this block, nothing left to fetch
 			blindScan.completed = true;
 		} else {
 			blindScan.nextCountFrom = finishedRequest.countTo + 1L;
 		}
 		tickDueImmediately = true;
 	}
 	/**
 	 * Resolves the Win-Test station a log belongs to. The log identity carries
 	 * the owning station name in front of the {@code @} separator.
 	 *
 	 * @param logId log identity
 	 * @return station name to ask, or {@code null} when none is known
 	 */
 	private String resolveStationForLogId(String logId) {
 		int separatorIndex = logId.indexOf('@');
 		String ownerStationName = separatorIndex > 0 ? logId.substring(0, separatorIndex) : logId;
 		for (String stationName : inventoriesByStation.keySet()) {
 			if (stationName.equalsIgnoreCase(ownerStationName)) {
 				return stationName;
 			}
 		}
 		return ownerStationName.isBlank() ? null : ownerStationName;
 	}
 	private void sendRequest(
 			String targetStation,
 			String logId,
 			long countFrom,
 			long countTo,
 			boolean blind,
 			long now
 	) {
 		pendingRequest = new PendingRequest(targetStation, logId, countFrom, countTo, blind, now);
 		state = SyncState.SYNCING;
 		try {
 			needQsoSender.sendNeedQso(targetStation, logId, countFrom, countTo);
 		} catch (RuntimeException exception) {
 			/*
 			 * A failed transmission must not stop the receive loop. The pending
 			 * request runs into its timeout and is retried from there.
 			 */
 			System.out.println(
 					"[WinTest LogSync] NEEDQSO could not be sent: " + exception.getMessage()
 			);
 		}
 	}
 	private String resolveOwnStationName() {
 		if (ownStationNameSupplier == null) {
 			return "";
 		}
 		String ownStationName = ownStationNameSupplier.get();
 		return ownStationName == null ? "" : ownStationName.trim();
 	}
 	/** Request that is waiting for its answer. */
 	private static final class PendingRequest {
 		private final String targetStation;
 		private final String logId;
 		private final long countFrom;
 		private final long countTo;
 		private final boolean blind;
 		private final long sentAtMs;
 		private int answeredQsoCount;
 		private PendingRequest(
 				String targetStation,
 				String logId,
 				long countFrom,
 				long countTo,
 				boolean blind,
 				long sentAtMs
 		) {
 			this.targetStation = targetStation;
 			this.logId = logId;
 			this.countFrom = countFrom;
 			this.countTo = countTo;
 			this.blind = blind;
 			this.sentAtMs = sentAtMs;
 		}
 		private long getRequestedQsoCount() {
 			return countTo - countFrom + 1L;
 		}
 	}
 	/** Progress of the blind fallback for one log. */
 	private static final class BlindScan {
 		private long nextCountFrom = 1L;
 		private int requestedBlockCount;
 		private boolean completed;
 	}
 }
@@ -17,8 +17,10 @@ import java.nio.charset.StandardCharsets;
 */
 public class WinTestMessage {
-    /** Win-Test message types relevant for SKED management. */
+    /** Win-Test message types sent by KST4Contest. */
    public enum MessageType {
        /** Requests a range of QSOs of one Win-Test log for log synchronization. */
        NEEDQSO,
        LOCKSKED,
        UNLOCKSKED,
        ADDSKED,
@@ -0,0 +1,227 @@
 package kst4contest.controller;
 import java.net.Inet4Address;
 import java.net.InetAddress;
 import java.net.InterfaceAddress;
 import java.net.NetworkInterface;
 import java.net.SocketException;
 import java.net.UnknownHostException;
 import java.util.Enumeration;
 /**
 * Determines the broadcast address used to talk to the Win-Test network.
 *
 * <p>Win-Test only reacts to broadcast packets; a unicast request to the same
 * station stays unanswered. The configured broadcast address is therefore the
 * one setting that silently disables every outgoing Win-Test feature when it is
 * wrong: sending to an address outside the local networks succeeds without an
 * error and the packet is routed away.</p>
 *
 * <p>Incoming Win-Test packets carry the information that is actually needed.
 * The source address of a received packet identifies the network the station
 * lives in, so the broadcast address of the matching local interface reaches it
 * reliably. The configured address remains the fallback and keeps working for a
 * station behind a router, where no local interface matches.</p>
 */
 public class WinTestNetworkAddressResolver {
 	/** Last resort when neither a station nor a usable setting is available. */
 	private static final String LIMITED_BROADCAST_ADDRESS = "255.255.255.255";
 	/**
 	 * Resolves the local broadcast address for a remote address.
 	 */
 	@FunctionalInterface
 	public interface LocalBroadcastLookup {
 		/**
 		 * @param remoteAddress address a Win-Test packet was received from
 		 * @return broadcast address of the matching local interface, or
 		 *         {@code null} when no local interface serves that network
 		 */
 		InetAddress findBroadcastFor(InetAddress remoteAddress);
 	}
 	private final LocalBroadcastLookup localBroadcastLookup;
 	private volatile InetAddress lastStationAddress;
 	private volatile String lastReportedBroadcastAddress;
 	public WinTestNetworkAddressResolver() {
 		this(WinTestNetworkAddressResolver::findLocalBroadcastAddress);
 	}
 	/**
 	 * @param localBroadcastLookup interface lookup, replaceable for tests
 	 */
 	WinTestNetworkAddressResolver(LocalBroadcastLookup localBroadcastLookup) {
 		this.localBroadcastLookup = localBroadcastLookup;
 	}
 	/**
 	 * Remembers where Win-Test packets come from.
 	 *
 	 * <p>Only addresses of real Win-Test stations may be passed in. Loopback and
 	 * wildcard addresses are ignored, so an internal control packet cannot
 	 * redirect outgoing Win-Test traffic.</p>
 	 *
 	 * @param stationAddress source address of a received Win-Test packet
 	 */
 	public void rememberStationAddress(InetAddress stationAddress) {
 		if (stationAddress == null
 				|| stationAddress.isLoopbackAddress()
 				|| stationAddress.isAnyLocalAddress()
 				|| !(stationAddress instanceof Inet4Address)) {
 			return;
 		}
 		this.lastStationAddress = stationAddress;
 	}
 	/**
 	 * Determines the broadcast address for outgoing Win-Test packets.
 	 *
 	 * <p>Order of preference: the broadcast address of the local interface that
 	 * serves the last seen Win-Test station, then the configured address, then
 	 * the limited broadcast address.</p>
 	 *
 	 * @param configuredBroadcastAddress address from the settings, may be blank
 	 * @return address to send Win-Test packets to
 	 * @throws UnknownHostException if the configured address cannot be resolved
 	 *                              and the limited broadcast address fails too
 	 */
 	public InetAddress resolveBroadcastAddress(String configuredBroadcastAddress)
 			throws UnknownHostException {
 		InetAddress stationAddress = this.lastStationAddress;
 		if (stationAddress != null) {
 			InetAddress derivedBroadcastAddress =
 					localBroadcastLookup.findBroadcastFor(stationAddress);
 			if (derivedBroadcastAddress != null) {
 				reportDerivedAddress(derivedBroadcastAddress, configuredBroadcastAddress);
 				return derivedBroadcastAddress;
 			}
 		}
 		if (configuredBroadcastAddress != null && !configuredBroadcastAddress.isBlank()) {
 			return InetAddress.getByName(configuredBroadcastAddress.trim());
 		}
 		return InetAddress.getByName(LIMITED_BROADCAST_ADDRESS);
 	}
 	/**
 	 * Logs a derived address once as long as it stays the same, and points out
 	 * a configured address that does not match the Win-Test network.
 	 */
 	private void reportDerivedAddress(
 			InetAddress derivedBroadcastAddress,
 			String configuredBroadcastAddress
 	) {
 		String derivedHostAddress = derivedBroadcastAddress.getHostAddress();
 		if (derivedHostAddress.equals(lastReportedBroadcastAddress)) {
 			return;
 		}
 		lastReportedBroadcastAddress = derivedHostAddress;
 		String configuredHostAddress = configuredBroadcastAddress == null
 				? "" : configuredBroadcastAddress.trim();
 		if (derivedHostAddress.equals(configuredHostAddress)) {
 			return;
 		}
 		System.out.println("[WinTest] using broadcast address " + derivedHostAddress
 				+ " of the network Win-Test was heard on, configured is '"
 				+ configuredHostAddress + "'");
 	}
 	/**
 	 * Searches the local interfaces for the network a remote address belongs to.
 	 *
 	 * @param remoteAddress address of a Win-Test station
 	 * @return broadcast address of the matching interface, or {@code null}
 	 */
 	static InetAddress findLocalBroadcastAddress(InetAddress remoteAddress) {
 		if (!(remoteAddress instanceof Inet4Address)) {
 			return null;
 		}
 		try {
 			Enumeration<NetworkInterface> networkInterfaces =
 					NetworkInterface.getNetworkInterfaces();
 			while (networkInterfaces != null && networkInterfaces.hasMoreElements()) {
 				NetworkInterface networkInterface = networkInterfaces.nextElement();
 				for (InterfaceAddress interfaceAddress : networkInterface.getInterfaceAddresses()) {
 					InetAddress broadcastAddress = interfaceAddress.getBroadcast();
 					if (broadcastAddress == null
 							|| !(interfaceAddress.getAddress() instanceof Inet4Address)) {
 						continue;
 					}
 					if (isInSameSubnet(
 							interfaceAddress.getAddress(),
 							remoteAddress,
 							interfaceAddress.getNetworkPrefixLength())) {
 						return broadcastAddress;
 					}
 				}
 			}
 		} catch (SocketException exception) {
 			System.out.println("[WinTest] could not inspect local interfaces: "
 					+ exception.getMessage());
 		}
 		return null;
 	}
 	/**
 	 * Compares two IPv4 addresses up to the given network prefix length.
 	 *
 	 * @param localAddress address of a local interface
 	 * @param remoteAddress address of the Win-Test station
 	 * @param networkPrefixLength prefix length of the local interface
 	 * @return {@code true} when both addresses share the same network
 	 */
 	static boolean isInSameSubnet(
 			InetAddress localAddress,
 			InetAddress remoteAddress,
 			int networkPrefixLength
 	) {
 		if (localAddress == null || remoteAddress == null) {
 			return false;
 		}
 		byte[] localBytes = localAddress.getAddress();
 		byte[] remoteBytes = remoteAddress.getAddress();
 		if (localBytes.length != remoteBytes.length
 				|| networkPrefixLength < 0
 				|| networkPrefixLength > localBytes.length * 8) {
 			return false;
 		}
 		int remainingPrefixBits = networkPrefixLength;
 		for (int byteIndex = 0; byteIndex < localBytes.length && remainingPrefixBits > 0; byteIndex++) {
 			int comparedBits = Math.min(8, remainingPrefixBits);
 			int mask = (0xFF << (8 - comparedBits)) & 0xFF;
 			if ((localBytes[byteIndex] & mask) != (remoteBytes[byteIndex] & mask)) {
 				return false;
 			}
 			remainingPrefixBits -= comparedBits;
 		}
 		return true;
 	}
 }
@@ -0,0 +1,238 @@
 package kst4contest.controller;
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 /**
 * Win-Test network packet received over UDP.
 *
 * <p>This is the receiving counterpart of {@link WinTestMessage} and follows the
 * same framing:</p>
 *
 * <pre>
 *   MESSAGETYPE: "src" "dst" data{checksum}\0
 * </pre>
 *
 * <p>The checksum byte always has bit 7 set and is therefore not valid ASCII.
 * Decoding the datagram as text before removing it turns the byte into a
 * replacement character that sticks to the last data field. That is harmless
 * for fields KST4Contest never reads, but the log synchronization needs exactly
 * those trailing fields: the log ID of an {@code ADDQSO} packet and the
 * run-length inventory of an {@code IHAVE} packet. The framing is therefore
 * resolved on the raw bytes here, once, before any text parsing.</p>
 */
 public final class WinTestPacket {
 	/** Quoted values stay one token, unquoted values are split at whitespace. */
 	private static final Pattern TOKEN_PATTERN = Pattern.compile("\"([^\"]*)\"|(\\S+)");
 	private final String messageType;
 	private final String source;
 	private final String destination;
 	private final String messageText;
 	private final List<String> dataTokens;
 	private final boolean checksumPresent;
 	private final boolean checksumValid;
 	private WinTestPacket(
 			String messageType,
 			String source,
 			String destination,
 			String messageText,
 			List<String> dataTokens,
 			boolean checksumPresent,
 			boolean checksumValid
 	) {
 		this.messageType = messageType;
 		this.source = source;
 		this.destination = destination;
 		this.messageText = messageText;
 		this.dataTokens = dataTokens;
 		this.checksumPresent = checksumPresent;
 		this.checksumValid = checksumValid;
 	}
 	/**
 	 * Builds a packet from a received datagram.
 	 *
 	 * <p>Trailing NUL bytes are removed first. If the resulting last byte has
 	 * bit 7 set it is the Win-Test checksum: it is verified against the sum of
 	 * all preceding bytes and removed before the message text is decoded.</p>
 	 *
 	 * @param datagram raw datagram buffer
 	 * @param length number of valid bytes in the buffer
 	 * @return parsed packet, or {@code null} when the datagram carries no message
 	 */
 	public static WinTestPacket fromDatagram(byte[] datagram, int length) {
 		if (datagram == null || length <= 0 || length > datagram.length) {
 			return null;
 		}
 		int endIndex = length;
 		while (endIndex > 0 && datagram[endIndex - 1] == 0) {
 			endIndex--;
 		}
 		if (endIndex == 0) {
 			return null;
 		}
 		boolean hasChecksum = (datagram[endIndex - 1] & 0x80) != 0;
 		boolean isChecksumValid = false;
 		int textEndIndex = endIndex;
 		if (hasChecksum) {
 			int sum = 0;
 			for (int index = 0; index < endIndex - 1; index++) {
 				sum += datagram[index] & 0xFF;
 			}
 			byte expectedChecksum = (byte) ((sum | 0x80) & 0xFF);
 			isChecksumValid = expectedChecksum == datagram[endIndex - 1];
 			textEndIndex = endIndex - 1;
 		}
 		String text = new String(datagram, 0, textEndIndex, StandardCharsets.US_ASCII);
 		return fromMessageText(text, hasChecksum, isChecksumValid);
 	}
 	/**
 	 * Builds a packet from an already decoded message text without checksum
 	 * information. Used for messages that reach the listener as text.
 	 *
 	 * @param messageText complete message text
 	 * @return parsed packet, or {@code null} for an unusable message
 	 */
 	public static WinTestPacket fromMessageText(String messageText) {
 		return fromMessageText(messageText, false, false);
 	}
 	private static WinTestPacket fromMessageText(
 			String rawMessageText,
 			boolean checksumPresent,
 			boolean checksumValid
 	) {
 		if (rawMessageText == null) {
 			return null;
 		}
 		String text = rawMessageText.trim();
 		int typeEndIndex = text.indexOf(": ");
 		if (typeEndIndex <= 0) {
 			return null;
 		}
 		String type = text.substring(0, typeEndIndex);
 		List<String> tokens = tokenize(text.substring(typeEndIndex + 2));
 		String packetSource = tokens.isEmpty() ? "" : tokens.get(0);
 		String packetDestination = tokens.size() > 1 ? tokens.get(1) : "";
 		List<String> data = tokens.size() > 2
 				? new ArrayList<>(tokens.subList(2, tokens.size()))
 				: new ArrayList<>();
 		return new WinTestPacket(
 				type,
 				packetSource,
 				packetDestination,
 				text,
 				data,
 				checksumPresent,
 				checksumValid
 		);
 	}
 	/**
 	 * Splits Win-Test payload text into fields. Quoted values are kept together
 	 * and empty quoted values are preserved, so field positions stay stable.
 	 *
 	 * @param text payload text
 	 * @return field values without their surrounding quotes
 	 */
 	static List<String> tokenize(String text) {
 		List<String> tokens = new ArrayList<>();
 		if (text == null) {
 			return tokens;
 		}
 		Matcher matcher = TOKEN_PATTERN.matcher(text);
 		while (matcher.find()) {
 			tokens.add(matcher.group(1) != null ? matcher.group(1) : matcher.group(2));
 		}
 		return tokens;
 	}
 	/**
 	 * @return message type such as {@code ADDQSO}, never {@code null}
 	 */
 	public String getMessageType() {
 		return messageType;
 	}
 	/**
 	 * @return Win-Test station that sent the packet
 	 */
 	public String getSource() {
 		return source;
 	}
 	/**
 	 * @return addressed Win-Test station, empty for a broadcast
 	 */
 	public String getDestination() {
 		return destination;
 	}
 	/**
 	 * @return complete message text without checksum byte and NUL terminator
 	 */
 	public String getMessageText() {
 		return messageText;
 	}
 	/**
 	 * @return payload fields following source and destination
 	 */
 	public List<String> getDataTokens() {
 		return Collections.unmodifiableList(dataTokens);
 	}
 	/**
 	 * @param index payload field position
 	 * @return field value, or {@code null} when the field is missing
 	 */
 	public String getDataToken(int index) {
 		return index >= 0 && index < dataTokens.size() ? dataTokens.get(index) : null;
 	}
 	public boolean isChecksumPresent() {
 		return checksumPresent;
 	}
 	public boolean isChecksumValid() {
 		return checksumValid;
 	}
 	/**
 	 * Checks whether this packet is meant for us.
 	 *
 	 * @param ownStationName own Win-Test station name
 	 * @return {@code true} for a broadcast or for a packet addressed to us
 	 */
 	public boolean isAddressedTo(String ownStationName) {
 		if (destination == null || destination.isEmpty()) {
 			return true;
 		}
 		return ownStationName != null && destination.equalsIgnoreCase(ownStationName.trim());
 	}
 	@Override
 	public String toString() {
 		return messageType + ": src=" + source + " dst=" + destination
 				+ " fields=" + dataTokens.size()
 				+ (checksumPresent ? (checksumValid ? " checksum=ok" : " checksum=bad") : " checksum=none");
 	}
 }
@@ -13,9 +13,10 @@ import java.util.regex.Pattern;
 * Common parser for explicit amateur-radio frequencies embedded in text.
 *
 * <p>This parser deliberately handles only complete frequencies such as
- * 144.300, 432.357 or 10368.100. Relative forms such as ".210" or ambiguous
+ * 144.300, 432.357, 10368.100 or their compact digit-only forms. Relative
- * bare values such as "210" require additional message context and remain the
+ * forms such as ".210" or ambiguous bare values such as "210" require
- * responsibility of the chat-message parser.</p>
+ * additional message context and remain the responsibility of the
 * chat-message parser.</p>
 */
 public final class FrequencyTextParser {
@@ -26,14 +27,18 @@ public final class FrequencyTextParser {
     * 432,357
     * 10368.100
     * 144.300.03
     * 144300
     * 10368100
     *
-     * At least two digits are required before the decimal separator. This
+     * At least two digits are required before a decimal separator. Compact
-     * intentionally prevents "1.2" from being interpreted as a frequency.
+     * values need at least five digits because their final three digits form
     * the kHz part. This intentionally prevents "1.2" and bare values such as
     * "210" from being interpreted as complete frequencies.
     */
    private static final Pattern EXPLICIT_FREQUENCY_PATTERN = Pattern.compile(
            "(?<![A-Z0-9])"
-                    + "(\\d{2,5}[.,]\\d{1,3}(?:[.,]\\d{1,3})?)"
+                    + "(\\d{2,5}[.,]\\d{1,3}(?:[.,]\\d{1,3})?|\\d{5,8})"
-                    + "(?!\\d)",
+                    + "(?![A-Z0-9])",
            Pattern.CASE_INSENSITIVE
    );
@@ -93,12 +98,12 @@ public final class FrequencyTextParser {
            return null;
        }
-        String normalized =
+        final String trimmedFrequency = rawFrequency.trim();
-                normalizeFrequencyString(
+        final String normalized = trimmedFrequency.matches("\\d{5,8}")
-                        rawFrequency
+                ? trimmedFrequency.substring(0, trimmedFrequency.length() - 3)
-                                .trim()
+                        + "."
-                                .replace(',', '.')
+                        + trimmedFrequency.substring(trimmedFrequency.length() - 3)
-                );
+                : normalizeFrequencyString(trimmedFrequency.replace(',', '.'));
        try {
            double frequencyMHz =
@@ -188,4 +193,4 @@ public final class FrequencyTextParser {
            return sourceText;
        }
    }
-}
+}
@@ -1,11 +1,16 @@
 package kst4contest.model;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.OutputStream;
-import java.util.ArrayList;
+import java.nio.file.AtomicMoveNotSupportedException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.StandardCopyOption;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.OptionalDouble;
 import javax.xml.XMLConstants;
 import javax.xml.parsers.DocumentBuilder;
@@ -50,7 +55,7 @@ public class ChatPreferences {
 	 * Reading must stay backwards compatible: missing/unknown tags should fall back to defaults.
 	 */
 //	private static final int CONFIG_VERSION = 2;
-	public static final int CONFIG_VERSION = 5;
+	public static final int CONFIG_VERSION = 7;
 	// Prefer writing tag names that mirror variable names (human readable). Keep legacy tags for compatibility.
 	private static final String TAG_CONFIG_VERSION = "configVersion";
@@ -143,7 +148,7 @@ public class ChatPreferences {
 	 *
 	 */
-	String programVersion = "Chat is powered by ON4KST \n\nUsage is free. You are welcome to support: \n\n- my project (donations, bugreports, good ideas are welcome), \n- ON4KST Servers, \n- AirScout developers and \n- OV3T (best AS-data provider of the world). \n\n73 de DO5AMF, Marc (DM5M / DARC X08)";
+	String programVersion = "Chat is powered by ON4KST \n\nUsage is free. You are welcome to support: \n\n- my project (donations, bugreports, good ideas are welcome), \n- ON4KST Servers, \n- AirScout developers and \n- OV3T (best AS-data provider of the world). \n\n73 de DO5AMF, Marc (DM5M / DARC X08)\nand DN9APW, Philipp Wagner";
 	String logsynch_storeWorkedCallSignsFileNameUDPMessageBackup = "udpReaderBackup.txt";
 	String storeAndRestorePreferencesFileName = ApplicationFileUtils.getFilePath(ApplicationConstants.APPLICATION_NAME, PREFERENCES_FILE);
 	String chatState; // working variable only for use by primarystage (title bar)
@@ -341,6 +346,12 @@ public class ChatPreferences {
 	private double[] GUIstationMapStageSceneSizeHW = new double[] { 1000, 800 };
 	private double[] GUIstationMapStagePositionXY = new double[] { Double.NaN, Double.NaN };
 	private boolean GUIstationMapPathAnalysisVisible = true;
 	private boolean GUIstationMapClusteringEnabled = true;
 	private final Map<String, Double> tableColumnWidths = new LinkedHashMap<>();
 	private static final String TAG_TABLE_COLUMN_WIDTH = "tableColumnWidth";
 	private static final double MIN_TABLE_COLUMN_WIDTH = 16.0;
 	private static final double MAX_TABLE_COLUMN_WIDTH = 10_000.0;
 	/*********************************************************************************
@@ -645,6 +656,39 @@ public class ChatPreferences {
 		this.GUIstationMapPathAnalysisVisible = GUIstationMapPathAnalysisVisible;
 	}
 	public boolean isGUIstationMapClusteringEnabled() {
 		return GUIstationMapClusteringEnabled;
 	}
 	public void setGUIstationMapClusteringEnabled(boolean GUIstationMapClusteringEnabled) {
 		this.GUIstationMapClusteringEnabled = GUIstationMapClusteringEnabled;
 	}
 	/**
 	 * Returns a stored width for one stable table/leaf-column identity.
 	 *
 	 * @param tableId stable table layout identifier
 	 * @param columnId stable leaf-column identifier
 	 * @return stored pixel width, or empty when no usable value exists
 	 */
 	public synchronized OptionalDouble getTableColumnWidth(String tableId, String columnId) {
 		if (!isValidTableColumnIdentity(tableId, columnId)) {
 			return OptionalDouble.empty();
 		}
 		Double width = tableColumnWidths.get(tableColumnWidthKey(tableId, columnId));
 		return isValidTableColumnWidth(width) ? OptionalDouble.of(width) : OptionalDouble.empty();
 	}
 	/**
 	 * Updates one table leaf-column width in memory. Persistence is coordinated by
 	 * the layout autosave layer.
 	 */
 	public synchronized void setTableColumnWidth(String tableId, String columnId, double width) {
 		if (isValidTableColumnIdentity(tableId, columnId) && isValidTableColumnWidth(width)) {
 			tableColumnWidths.put(tableColumnWidthKey(tableId, columnId), width);
 		}
 	}
 	public boolean isGuiOptions_defaultFilterNothing() {
 		return guiOptions_defaultFilterNothing;
 	}
@@ -1389,7 +1433,7 @@ public class ChatPreferences {
 	 *
 	 * @return true if the file writing was successful, else false
 	 */
-	public boolean writePreferencesToXmlFile() {
+	public synchronized boolean writePreferencesToXmlFile() {
 		DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
 		try {
@@ -2085,27 +2129,25 @@ public class ChatPreferences {
 			);
 			guiOptions.appendChild(GUIstationMapPathAnalysisVisible);
 			Element GUIstationMapClusteringEnabled = doc.createElement("GUIstationMapClusteringEnabled");
 			GUIstationMapClusteringEnabled.setTextContent(
 					String.valueOf(this.isGUIstationMapClusteringEnabled())
 			);
 			guiOptions.appendChild(GUIstationMapClusteringEnabled);
 			appendTableColumnWidths(doc, guiOptions);
 			/****************************************************************************************
 			 ****************************** now write this XML! *************************************
 			 ****************************************************************************************/
-			writeXml(doc, System.out);
+			writeDocumentAtomically(doc);
 			// write dom document to a file
 			try (FileOutputStream output =
 						 new FileOutputStream(storeAndRestorePreferencesFileName)) {
 				writeXml(doc, output);
 			} catch (IOException e) {
 				e.printStackTrace();
 			} catch (TransformerException e) {
 				// TODO Auto-generated catch block
 				e.printStackTrace();
 			}
-		} catch (ParserConfigurationException | TransformerException e1) {
+		} catch (ParserConfigurationException | TransformerException | IOException e1) {
 			// TODO Auto-generated catch block
 			e1.printStackTrace();
 			return false;
 		}
 		return true;
@@ -2117,6 +2159,113 @@ public class ChatPreferences {
 	}
 	/**
 	 * Writes only layout values into the existing preferences document. Functional
 	 * settings are deliberately read from disk and left untouched.
 	 */
 	public synchronized boolean writeLayoutPreferencesToXmlFile() {
 		Path preferencesPath = Path.of(storeAndRestorePreferencesFileName).toAbsolutePath();
 		if (!Files.isRegularFile(preferencesPath)) {
 			System.out.println("[ChatPreferences, Warning]: Cannot autosave layout because preferences.xml does not exist.");
 			return false;
 		}
 		try {
 			DocumentBuilder documentBuilder = createSecureDocumentBuilderFactory().newDocumentBuilder();
 			Document document = documentBuilder.parse(preferencesPath.toFile());
 			Element root = document.getDocumentElement();
 			if (root == null) {
 				return false;
 			}
 			upsertDirectChildText(document, root, TAG_CONFIG_VERSION, String.valueOf(CONFIG_VERSION));
 			Element guiOptions = getDirectChildElement(root, "guiOptions");
 			if (guiOptions == null) {
 				guiOptions = document.createElement("guiOptions");
 				root.appendChild(guiOptions);
 			}
 			updateLayoutElements(document, guiOptions);
 			removeDirectChildren(guiOptions, TAG_TABLE_COLUMN_WIDTH);
 			appendTableColumnWidths(document, guiOptions);
 			writeDocumentAtomically(document);
 			return true;
 		} catch (ParserConfigurationException | SAXException | IOException | TransformerException exception) {
 			exception.printStackTrace();
 			return false;
 		}
 	}
 	private void updateLayoutElements(Document document, Element guiOptions) {
 		upsertDirectChildText(document, guiOptions, "GUIscn_ChatwindowMainSceneSizeHW",
 				getGUIscn_ChatwindowMainSceneSizeHW()[0] + ";" + getGUIscn_ChatwindowMainSceneSizeHW()[1]);
 		upsertDirectChildText(document, guiOptions, "GUIclusterAndQSOMonStage_SceneSizeHW",
 				getGUIclusterAndQSOMonStage_SceneSizeHW()[0] + ";" + getGUIclusterAndQSOMonStage_SceneSizeHW()[1]);
 		upsertDirectChildText(document, guiOptions, "GUIstage_updateStage_SceneSizeHW",
 				getGUIstage_updateStage_SceneSizeHW()[0] + ";" + getGUIstage_updateStage_SceneSizeHW()[1]);
 		upsertDirectChildText(document, guiOptions, "GUIsettingsStageSceneSizeHW",
 				getGUIsettingsStageSceneSizeHW()[0] + ";" + getGUIsettingsStageSceneSizeHW()[1]);
 		upsertDirectChildText(document, guiOptions, "GUIselectedCallSignSplitPane_dividerposition",
 				doubleArrayToCSVString(getGUIselectedCallSignSplitPane_dividerposition()));
 		upsertDirectChildText(document, guiOptions, "GUImainWindowLeftSplitPane_dividerposition",
 				doubleArrayToCSVString(getGUImainWindowLeftSplitPane_dividerposition()));
 		upsertDirectChildText(document, guiOptions, "GUImessageSectionSplitpane_dividerposition",
 				doubleArrayToCSVString(getGUImessageSectionSplitpane_dividerposition()));
 		upsertDirectChildText(document, guiOptions, "GUImainWindowRightSplitPane_dividerposition",
 				doubleArrayToCSVString(getGUImainWindowRightSplitPane_dividerposition()));
 		upsertDirectChildText(document, guiOptions, "GUIpnl_directedMSGWin_dividerpositionDefault",
 				doubleArrayToCSVString(getGUIpnl_directedMSGWin_dividerpositionDefault()));
 		upsertDirectChildText(document, guiOptions, "GUIstationMapStageSceneSizeHW",
 				getGUIstationMapStageSceneSizeHW()[0] + ";" + getGUIstationMapStageSceneSizeHW()[1]);
 		upsertDirectChildText(document, guiOptions, "GUIstationMapStagePositionXY",
 				getGUIstationMapStagePositionXY()[0] + ";" + getGUIstationMapStagePositionXY()[1]);
 		upsertDirectChildText(document, guiOptions, "GUIstationMapClusteringEnabled",
 				String.valueOf(isGUIstationMapClusteringEnabled()));
 	}
 	private void appendTableColumnWidths(Document document, Element guiOptions) {
 		for (Map.Entry<String, Double> entry : tableColumnWidths.entrySet()) {
 			if (!isValidTableColumnWidth(entry.getValue())) {
 				continue;
 			}
 			int separatorIndex = entry.getKey().indexOf('\u0000');
 			if (separatorIndex <= 0 || separatorIndex >= entry.getKey().length() - 1) {
 				continue;
 			}
 			Element widthElement = document.createElement(TAG_TABLE_COLUMN_WIDTH);
 			widthElement.setAttribute("tableId", entry.getKey().substring(0, separatorIndex));
 			widthElement.setAttribute("columnId", entry.getKey().substring(separatorIndex + 1));
 			widthElement.setAttribute("pixels", String.valueOf(entry.getValue()));
 			guiOptions.appendChild(widthElement);
 		}
 	}
 	private void writeDocumentAtomically(Document document) throws IOException, TransformerException {
 		Path target = Path.of(storeAndRestorePreferencesFileName).toAbsolutePath();
 		Path parent = target.getParent();
 		Path fileName = target.getFileName();
 		if (parent == null || fileName == null) {
 			throw new IOException("Preferences path has no parent directory: " + target);
 		}
 		Files.createDirectories(parent);
 		Path temporary = Files.createTempFile(parent, fileName.toString(), ".tmp");
 		try {
 			try (OutputStream output = Files.newOutputStream(temporary)) {
 				writeXml(document, output);
 			}
 			try {
 				Files.move(temporary, target, StandardCopyOption.ATOMIC_MOVE, StandardCopyOption.REPLACE_EXISTING);
 			} catch (AtomicMoveNotSupportedException exception) {
 				Files.move(temporary, target, StandardCopyOption.REPLACE_EXISTING);
 			}
 		} finally {
 			Files.deleteIfExists(temporary);
 		}
 	}
 	// write doc to output stream
 	private static void writeXml(Document doc, OutputStream output) throws TransformerException {
@@ -2824,6 +2973,7 @@ public class ChatPreferences {
 			 * case read GUI options
 			 *
 			 ***********************************************/
 			this.setGUIstationMapClusteringEnabled(true);
 			list = doc.getElementsByTagName("guiOptions");
 			if (list.getLength() != 0) {
@@ -2862,6 +3012,17 @@ public class ChatPreferences {
 								"GUIstationMapPathAnalysisVisible"
 						));
 						/*
 						 * Files written before config version 7 do not contain this value.
 						 * Missing or malformed values keep clustering enabled so existing
 						 * installations retain the established map behaviour.
 						 */
 						this.setGUIstationMapClusteringEnabled(getBooleanOrDefault(
 								element,
 								true,
 								"GUIstationMapClusteringEnabled"
 						));
 						// Splitpane divider positions
 						String s1 = getText(element, null, "GUIselectedCallSignSplitPane_dividerposition");
 						if (s1 != null) {
@@ -2920,6 +3081,22 @@ public class ChatPreferences {
 						if (s5 != null) {
 							this.setGUIpnl_directedMSGWin_dividerpositionDefault(csvStringToDoubleArray(s5));
 						}
 						tableColumnWidths.clear();
 						NodeList widthElements = element.getElementsByTagName(TAG_TABLE_COLUMN_WIDTH);
 						for (int widthIndex = 0; widthIndex < widthElements.getLength(); widthIndex++) {
 							Node widthNode = widthElements.item(widthIndex);
 							if (!(widthNode instanceof Element widthElement)) {
 								continue;
 							}
 							String tableId = widthElement.getAttribute("tableId");
 							String columnId = widthElement.getAttribute("columnId");
 							double width = parseDoubleOrDefault(widthElement.getAttribute("pixels"), Double.NaN);
 							if (isValidTableColumnIdentity(tableId, columnId) && isValidTableColumnWidth(width)) {
 								tableColumnWidths.put(tableColumnWidthKey(tableId, columnId), width);
 							}
 						}
 					}
 				}
 			}
@@ -3100,6 +3277,63 @@ public class ChatPreferences {
 		return (n instanceof Element) ? (Element) n : null;
 	}
 	private static DocumentBuilderFactory createSecureDocumentBuilderFactory()
 			throws ParserConfigurationException {
 		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 		factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
 		return factory;
 	}
 	private static Element getDirectChildElement(Element parent, String tagName) {
 		for (Node child = parent.getFirstChild(); child != null; child = child.getNextSibling()) {
 			if (child instanceof Element element && tagName.equals(element.getTagName())) {
 				return element;
 			}
 		}
 		return null;
 	}
 	private static void upsertDirectChildText(
 			Document document,
 			Element parent,
 			String tagName,
 			String value
 	) {
 		Element element = getDirectChildElement(parent, tagName);
 		if (element == null) {
 			element = document.createElement(tagName);
 			parent.appendChild(element);
 		}
 		element.setTextContent(value);
 	}
 	private static void removeDirectChildren(Element parent, String tagName) {
 		for (Node child = parent.getFirstChild(); child != null; ) {
 			Node next = child.getNextSibling();
 			if (child instanceof Element element && tagName.equals(element.getTagName())) {
 				parent.removeChild(child);
 			}
 			child = next;
 		}
 	}
 	private static String tableColumnWidthKey(String tableId, String columnId) {
 		if (!isValidTableColumnIdentity(tableId, columnId)) {
 			return "";
 		}
 		return tableId + '\u0000' + columnId;
 	}
 	private static boolean isValidTableColumnIdentity(String tableId, String columnId) {
 		return tableId != null && !tableId.isBlank() && tableId.indexOf('\u0000') < 0
 				&& columnId != null && !columnId.isBlank() && columnId.indexOf('\u0000') < 0;
 	}
 	private static boolean isValidTableColumnWidth(Double width) {
 		return width != null && Double.isFinite(width)
 				&& width >= MIN_TABLE_COLUMN_WIDTH && width <= MAX_TABLE_COLUMN_WIDTH;
 	}
 	/**
 	 * Returns the text content of the first matching child tag (directly under {@code parent})
 	 * or {@code defaultValue} if the tag does not exist or is empty.
@@ -3139,6 +3373,20 @@ public class ChatPreferences {
 		return "true".equalsIgnoreCase(v) || "1".equals(v) || "yes".equalsIgnoreCase(v);
 	}
 	private static boolean getBooleanOrDefault(Element parent, boolean defaultValue, String... tagNames) {
 		String value = getText(parent, null, tagNames);
 		if (value == null) {
 			return defaultValue;
 		}
 		if ("true".equalsIgnoreCase(value) || "1".equals(value) || "yes".equalsIgnoreCase(value)) {
 			return true;
 		}
 		if ("false".equalsIgnoreCase(value) || "0".equals(value) || "no".equalsIgnoreCase(value)) {
 			return false;
 		}
 		return defaultValue;
 	}
 	private static int getInt(Element parent, int defaultValue, String... tagNames) {
 		String v = getText(parent, null, tagNames);
 		if (v == null) {
@@ -84,6 +84,9 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 	private static final Logger LOGGER = Logger.getLogger(
 			Kst4ContestApplication.class.getName());
 	private static final String SIMPLE_LOG_MANUAL_URL =
 			"https://kst4contest.hamradioonline.de/manual/en/log-sync/"
 					+ "#method-1-universal-file-based-callsign-interpreter-simplelogfile";
 	private boolean gridSquareHighlightEnabled = false;
@@ -116,6 +119,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 	private StationMapView stationMapView; //view class for the avl stn map
 	private StationMapBridge stationMapBridge; //bridge for mapping actions between map and view
 	private LayoutAutosave layoutAutosave;
 	private final Button btnConnectionStateIndicator = new Button("LINK");
 	private final Tooltip tipConnectionStateIndicator = new Tooltip();
@@ -183,7 +187,10 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			return;
 		}
-		stationMapView = new StationMapView(chatcontroller.getChatPreferences());
+		stationMapView = new StationMapView(
 				chatcontroller.getChatPreferences(),
 				this::requestLayoutSave
 		);
 		stationMapBridge = new StationMapBridge(
 				chatcontroller,
 				tbl_chatMember,
@@ -534,7 +541,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 	 * Builds the tooltip shown on a band-status cell: a fixed legend plus this row's
 	 * resolved status for the given band.
 	 */
-	private Tooltip buildBandCellStatusTooltip(ChatMember chatMember, Band band, String status) {
+	private String buildBandCellStatusTooltipText(ChatMember chatMember, Band band, String status) {
 		StringBuilder tooltip = new StringBuilder("Band status:\n")
 				.append("X = worked on this band\n")
 				.append("B+ = band available, not worked on this band yet (call already worked on another band)\n")
@@ -548,30 +555,26 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 					.append("Status: ").append(status == null || status.isBlank() ? "-" : status);
 		}
-		return new Tooltip(tooltip.toString());
+		return tooltip.toString();
 	}
 	/**
 	 * Creates a shared cell factory for one band-status column, attaching the
-	 * {@link #buildBandCellStatusTooltip(ChatMember, Band, String)} tooltip.
+	 * {@link #buildBandCellStatusTooltipText(ChatMember, Band, String)} tooltip.
 	 */
 	private Callback<TableColumn<ChatMember, String>, TableCell<ChatMember, String>> createBandStatusCellFactory(Band band) {
-		return column -> new TableCell<ChatMember, String>() {
+		return column -> new TruncatedTextTableCell<ChatMember>(
 				java.util.function.Function.identity(),
 				(member, status) -> buildBandCellStatusTooltipText(member, band, status)
 		) {
 			@Override
 			protected void updateItem(String item, boolean empty) {
 				super.updateItem(item, empty);
 				if (empty) {
 					setText(null);
 					setTooltip(null);
 					setStyle("");
 					return;
 				}
 				ChatMember member = getTableRow() == null ? null : getTableRow().getItem();
 				setText(item);
 				setTooltip(buildBandCellStatusTooltip(member, band, item));
 				setAlignment(Pos.CENTER);
 				setStyle("-fx-font-weight: bold;");
 			}
@@ -1371,6 +1374,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				public void changed(ObservableValue<? extends Number> observableValue, Number oldDividerPos, Number newDividerPosition) {
 //					System.out.println("<<<<<<<<<<<<<<<<<<< devider " + selectedCallSignSplitPane.getDividers().indexOf(divider)  + " position change, new position: " + newDividerPosition + " // size dev: " +  selectedCallSignSplitPane.getDividers().size());
 					chatcontroller.getChatPreferences().getGUIselectedCallSignSplitPane_dividerposition()[selectedCallSignSplitPane.getDividers().indexOf(divider)] = newDividerPosition.doubleValue();
 					requestLayoutSave();
 				}
 			});
@@ -1646,9 +1650,6 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			}
 		});
 		tbl_chatMemberTable.setTooltip(new Tooltip(
 				"Stations available \n\nUse right click to a station to select predefined texts\nor hit <strg> + <1> ... <9> to write textsnippet to selected station\n\nHit <enter> to send"));
 		TableColumn<ChatMember, String> callSignCol =
 				new TableColumn<ChatMember, String>("Callsign");
@@ -1666,7 +1667,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			return new SimpleStringProperty(displayedCallsign);
 		});
-		callSignCol.setCellFactory(column -> new TableCell<ChatMember, String>() {
+		callSignCol.setCellFactory(column -> new TruncatedTextTableCell<ChatMember>() {
 			@Override
 			protected void updateItem(String item, boolean empty) {
@@ -1754,14 +1755,24 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		 * <p>No font weight is changed here. The compact worked/grid status such as
 		 * {@code xo} is emphasized only in the worked-any column.</p>
 		 */
-		qraCol.setCellFactory(column -> new TableCell<ChatMember, String>() {
+		qraCol.setCellFactory(column -> new TruncatedTextTableCell<ChatMember>(
 				java.util.function.Function.identity(),
 				(member, value) -> {
 					String grossField = WorkedGrossFieldCache.extractGrossField(value);
 					boolean gridWorked = member != null
 							&& chatcontroller != null
 							&& chatcontroller.isGridSquareWorkedAny(member);
 					return "Grid status: "
 							+ (grossField == null ? "unknown" : grossField)
 							+ "\nGrid worked any: "
 							+ (gridWorked ? "yes" : "no");
 				}
 		) {
 			@Override
 			protected void updateItem(String item, boolean empty) {
 				super.updateItem(item, empty);
 				if (empty || item == null) {
 					setText(null);
 					setTooltip(null);
 					setStyle("");
 					return;
 				}
@@ -1771,16 +1782,6 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 						&& chatcontroller != null
 						&& chatcontroller.isGridSquareWorkedAny(member);
 				String grossField = WorkedGrossFieldCache.extractGrossField(item);
 				setText(item);
 				setTooltip(new Tooltip(
 						"Grid status: "
 								+ (grossField == null ? "unknown" : grossField)
 								+ "\nGrid worked any: "
 								+ (gridWorked ? "yes" : "no")
 				));
 				/*
 				 * Important:
 				 * Do not style the cell unless the Grid color button is active AND the
@@ -1926,7 +1927,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		 */
 		airScoutCol.setCellFactory(new Callback<TableColumn<ChatMember, String>, TableCell<ChatMember, String>>() {
 			public TableCell call(TableColumn param) {
-				return new TableCell<ChatMember, String>() {
+				return new TruncatedTextTableCell<ChatMember>() {
 					@Override
 					public void updateItem(String item, boolean empty) {
@@ -1950,7 +1951,6 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 								this.getStyleClass().add("table-cell-50PercentAP");
 							}
 							setText(item);
 						}
 					}
 				};
@@ -2035,22 +2035,18 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		/**
 		 * Shows the compact worked/grid status and explains it by tooltip.
 		 */
-		wkdAny_subcol.setCellFactory(column -> new TableCell<ChatMember, String>() {
+		wkdAny_subcol.setCellFactory(column -> new TruncatedTextTableCell<ChatMember>(
 				java.util.function.Function.identity(),
 				(member, value) -> buildWorkedAnyGridStatusTooltip(member)
 		) {
 			@Override
 			protected void updateItem(String item, boolean empty) {
 				super.updateItem(item, empty);
 				if (empty) {
 					setText(null);
 					setTooltip(null);
 					setStyle("");
 					return;
 				}
 				ChatMember member = getTableRow() == null ? null : getTableRow().getItem();
 				setText(item);
 				setTooltip(new Tooltip(buildWorkedAnyGridStatusTooltip(member)));
 				setAlignment(Pos.CENTER);
 				setStyle("-fx-font-weight: bold;");
 			}
@@ -2386,7 +2382,38 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 //		}, new Date(), 5000);
 		tbl_chatMemberTable.setColumnResizePolicy(TableView.UNCONSTRAINED_RESIZE_POLICY);
-		tbl_chatMemberTable.autosize();
+		applyTruncatedTextCells(
 				nameCol, qrBCol, qtfCol, tropoCol, priorityScoreCol,
 				lastActCol, notQRVCol, chatCategoryCol
 		);
 		TableLayoutManager.install(
 				tbl_chatMemberTable,
 				"chat-members",
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("callsign", callSignCol),
 				TableLayoutManager.column("name", nameCol).maximumInitialWidth(220),
 				TableLayoutManager.column("qra", qraCol),
 				TableLayoutManager.column("qrb", qrBCol),
 				TableLayoutManager.column("qtf", qtfCol),
 				TableLayoutManager.column("qrg", qrgCol),
 				TableLayoutManager.column("tropo", tropoCol),
 				TableLayoutManager.column("score", priorityScoreCol),
 				TableLayoutManager.column("activity", lastActCol),
 				TableLayoutManager.column("airscout", airScoutCol).maximumInitialWidth(190),
 				TableLayoutManager.column("worked-any", wkdAny_subcol),
 				TableLayoutManager.column("band-50", sixMCol_subcol),
 				TableLayoutManager.column("band-70", fourMCol_subcol),
 				TableLayoutManager.column("band-144", vhfCol_subcol),
 				TableLayoutManager.column("band-432", uhfCol_subcol),
 				TableLayoutManager.column("band-1296", shf23_subcol),
 				TableLayoutManager.column("band-2320", shf13_subcol),
 				TableLayoutManager.column("band-3400", shf9_subcol),
 				TableLayoutManager.column("band-5760", shf6_subcol),
 				TableLayoutManager.column("band-10g", shf3_subcol),
 				TableLayoutManager.column("not-qrv", notQRVCol).maximumInitialWidth(180),
 				TableLayoutManager.column("category", chatCategoryCol)
 		);
 		/**
@@ -3117,6 +3144,24 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		ObservableList<ChatMessage> toOtherMSGList = chatcontroller.getLst_toOtherMessageList();
 		tbl_furtherInfoAbtCallsignMSGTable.setItems(chatcontroller.getLst_selectedCallSignInfofilteredMessageList());
 		applyTruncatedTextCells(
 				timeCol, callSignTRCVCol, callSignRCVRCol, qrgTXerCol,
 				qrgRXerCol, workedRXCol, workedTXCol
 		);
 		TableLayoutManager.install(
 				tbl_furtherInfoAbtCallsignMSGTable,
 				"selected-station-messages",
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("time", timeCol),
 				TableLayoutManager.column("call-tx", callSignTRCVCol),
 				TableLayoutManager.column("call-rx", callSignRCVRCol),
 				TableLayoutManager.column("last-qrg-tx", qrgTXerCol),
 				TableLayoutManager.column("last-qrg-rx", qrgRXerCol),
 				TableLayoutManager.column("message", msgCol).flexible(360),
 				TableLayoutManager.column("worked-rx", workedRXCol),
 				TableLayoutManager.column("worked-tx", workedTXCol)
 		);
 		return tbl_furtherInfoAbtCallsignMSGTable;
 	}
@@ -3278,11 +3323,11 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		Tab dxClusterMessagesTab = new Tab("DXCluster messages");
 		dxClusterMessagesTab.setTooltip(new Tooltip("DXCluster spots."));
-		dxClusterMessagesTab.setContent(initDXClusterTable());
+		dxClusterMessagesTab.setContent(initDXClusterTable("dx-cluster-main"));
 		Tab qsoOfTheOtherTab = new Tab("QSO of the other");
 		qsoOfTheOtherTab.setTooltip(new Tooltip("Messages between other stations. This view is not tied to the selected ChatMember."));
-		qsoOfTheOtherTab.setContent(initChatToOtherMSGTable());
+		qsoOfTheOtherTab.setContent(initChatToOtherMSGTable("qso-other-main"));
 		bottomMessageTabs.getTabs().addAll(publicMessagesTab, dxClusterMessagesTab, qsoOfTheOtherTab);
 		bottomMessageTabs.getSelectionModel().select(publicMessagesTab);
@@ -3434,6 +3479,19 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		ObservableList<ChatMessage> generalMSGList = chatcontroller.getLst_toAllMessageList();
 		tbl_generalMSGTable.setItems(generalMSGList);
 		applyTruncatedTextCells(timeCol, callSignCol, nameCol, categoryCol);
 		TableLayoutManager.install(
 				tbl_generalMSGTable,
 				"public-messages",
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("time", timeCol),
 				TableLayoutManager.column("callsign", callSignCol),
 				TableLayoutManager.column("name", nameCol).maximumInitialWidth(220),
 				TableLayoutManager.column("message", msgCol).flexible(360),
 				TableLayoutManager.column("last-qrg", qrgCol),
 				TableLayoutManager.column("category", categoryCol)
 		);
 		tbl_generalMSGTable.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>() {
 			@Override
@@ -3657,7 +3715,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		 */
 		airScoutCol.setCellFactory(new Callback<TableColumn<ChatMessage, String>, TableCell<ChatMessage, String>>() {
 			public TableCell call(TableColumn param) {
-				return new TableCell<ChatMessage, String>() {
+				return new TruncatedTextTableCell<ChatMessage>() {
 					@Override
 					public void updateItem(String item, boolean empty) {
@@ -3679,7 +3737,6 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 							}
 							setText(item);
 						}
 					}
 				};
@@ -3738,6 +3795,22 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		ObservableList<ChatMessage> privateMSGList = chatcontroller.getLst_toMeMessageList();
 		tbl_privateMSGTable.setItems(privateMSGList);
 		applyTruncatedTextCells(timeCol, callSignCol, nameCol, qraCol, qrbCol, categoryCol);
 		TableLayoutManager.install(
 				tbl_privateMSGTable,
 				"private-messages",
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("time", timeCol),
 				TableLayoutManager.column("callsign", callSignCol),
 				TableLayoutManager.column("name", nameCol).maximumInitialWidth(220),
 				TableLayoutManager.column("qra", qraCol),
 				TableLayoutManager.column("qrb", qrbCol),
 				TableLayoutManager.column("message", msgCol).flexible(360),
 				TableLayoutManager.column("last-qrg", qrgCol),
 				TableLayoutManager.column("airscout", airScoutCol).maximumInitialWidth(190),
 				TableLayoutManager.column("category", categoryCol)
 		);
 		tbl_privateMSGTable.addEventFilter(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>() {
 			@Override
@@ -3809,7 +3882,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		return tbl_privateMSGTable;
 	}
-	private TableView<ClusterMessage> initDXClusterTable() {
+	private TableView<ClusterMessage> initDXClusterTable(String layoutId) {
 		TableView<ClusterMessage> tbl_DXCTable = new TableView<ClusterMessage>();
 //		tbl_DXCTable.setTooltip(new Tooltip("Cluster Messages are shown here"));
@@ -3970,11 +4043,29 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		ObservableList<ClusterMessage> clusterMSGList = chatcontroller.getLst_clusterMemberList();
 		tbl_DXCTable.setItems(clusterMSGList);
 		applyTruncatedTextCells(
 				timeCol, callSignCol, locTXCol, callSignRXCol,
 				locRXCol, workedCol
 		);
 		TableLayoutManager.install(
 				tbl_DXCTable,
 				layoutId,
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("time", timeCol),
 				TableLayoutManager.column("call-tx", callSignCol),
 				TableLayoutManager.column("locator-tx", locTXCol),
 				TableLayoutManager.column("call-rx", callSignRXCol),
 				TableLayoutManager.column("locator-rx", locRXCol),
 				TableLayoutManager.column("qrg", qrgCol),
 				TableLayoutManager.column("message", msgCol).flexible(360),
 				TableLayoutManager.column("worked", workedCol)
 		);
 		return tbl_DXCTable;
 	}
-	private TableView<ChatMessage> initChatToOtherMSGTable() {
+	private TableView<ChatMessage> initChatToOtherMSGTable(String layoutId) {
 		TableView<ChatMessage> tbl_toOtherMSGTable = new TableView<ChatMessage>();
 //		tbl_toOtherMSGTable.setTooltip(new Tooltip("Messages between other member are shown here"));
@@ -4172,6 +4263,25 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		ObservableList<ChatMessage> toOtherMSGList = chatcontroller.getLst_toOtherMessageList();
 		tbl_toOtherMSGTable.setItems(toOtherMSGList);
 		applyTruncatedTextCells(
 				timeCol, callSignTRCVCol, qrgTXerCol, workedTXCol,
 				callSignRCVRCol, qrgRXerCol, workedRXCol, categoryCol
 		);
 		TableLayoutManager.install(
 				tbl_toOtherMSGTable,
 				layoutId,
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("time", timeCol),
 				TableLayoutManager.column("call-tx", callSignTRCVCol),
 				TableLayoutManager.column("last-qrg-tx", qrgTXerCol),
 				TableLayoutManager.column("worked-tx", workedTXCol),
 				TableLayoutManager.column("call-rx", callSignRCVRCol),
 				TableLayoutManager.column("last-qrg-rx", qrgRXerCol),
 				TableLayoutManager.column("worked-rx", workedRXCol),
 				TableLayoutManager.column("message", msgCol).flexible(360),
 				TableLayoutManager.column("category", categoryCol)
 		);
 		return tbl_toOtherMSGTable;
 	}
@@ -5258,6 +5368,28 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		tbl_chatMemberWkdDBTable.getColumns().addAll(callSignCol, workedCol);
 		tbl_chatMemberWkdDBTable.setItems(chatcontroller.getLst_DBBasedWkdCallSignList());
 		applyTruncatedTextCells(
 				callSignCol, wkdAny_subcol, sixMCol_subcol, fourMCol_subcol,
 				vhfCol_subcol, uhfCol_subcol, shf23_subcol, shf13_subcol,
 				shf9_subcol, shf6_subcol, shf3_subcol
 		);
 		TableLayoutManager.install(
 				tbl_chatMemberWkdDBTable,
 				"worked-database",
 				chatcontroller.getChatPreferences(),
 				layoutAutosave,
 				TableLayoutManager.column("callsign", callSignCol),
 				TableLayoutManager.column("worked-any", wkdAny_subcol),
 				TableLayoutManager.column("band-50", sixMCol_subcol),
 				TableLayoutManager.column("band-70", fourMCol_subcol),
 				TableLayoutManager.column("band-144", vhfCol_subcol),
 				TableLayoutManager.column("band-432", uhfCol_subcol),
 				TableLayoutManager.column("band-1296", shf23_subcol),
 				TableLayoutManager.column("band-2320", shf13_subcol),
 				TableLayoutManager.column("band-3400", shf9_subcol),
 				TableLayoutManager.column("band-5760", shf6_subcol),
 				TableLayoutManager.column("band-10g", shf3_subcol)
 		);
 		// TODO: https://www.youtube.com/watch?v=M_kp20qrtLw = tutorial dafuer
@@ -5621,7 +5753,8 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				Alert a = new Alert(AlertType.INFORMATION);
 				a.setTitle("About kst4contest");
-				a.setHeaderText("kst4Contest " + ApplicationConstants.APPLICATION_CURRENT_VERSION + ": ON4KST Chatclient by DO5AMF");
+				a.setHeaderText("kst4Contest " + ApplicationConstants.APPLICATION_CURRENT_VERSION
 						+ ": ON4KST Chatclient by DO5AMF and DN9APW");
 				a.setContentText(chatcontroller.getChatPreferences().getProgramVersion());
 				a.show();
 			}
@@ -6097,6 +6230,9 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 	@Override
 	public void stop() {
 		System.out.println("[Main.java, Info:] Stage is closing, killing all resources");
 		if (layoutAutosave != null) {
 			layoutAutosave.flushPending();
 		}
 		timer_buildWindowTitle.purge();
 		timer_buildWindowTitle.cancel();
@@ -6116,6 +6252,12 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		System.exit(0);
 	}
 	private void requestLayoutSave() {
 		if (layoutAutosave != null) {
 			layoutAutosave.requestSave();
 		}
 	}
 	private Queue<Media> musicList = new LinkedList<Media>();
 	private MediaPlayer mediaPlayer ;
@@ -6541,6 +6683,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		ChatMember ownChatMemberObject = new ChatMember();
 		chatcontroller = new ChatController(ownChatMemberObject, this); // instantiate the Chatcontroller with the user object
 		layoutAutosave = new LayoutAutosave(chatcontroller.getChatPreferences());
 		messageVariableResolver = new MessageVariableResolver(chatcontroller.getChatPreferences());
 		chatcontroller.setStatusListener(this); //callback interface for updating Thread events in visual
@@ -6684,6 +6827,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				@Override
 				public void changed(ObservableValue<? extends Number> observableValue, Number number, Number newWidthValue) {
 					chatcontroller.getChatPreferences().getGUIscn_ChatwindowMainSceneSizeHW()[1] = newWidthValue.doubleValue();
 					requestLayoutSave();
 				}
 			});
@@ -6691,6 +6835,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				@Override
 				public void changed(ObservableValue<? extends Number> observableValue, Number number, Number newHeightValue) {
 					chatcontroller.getChatPreferences().getGUIscn_ChatwindowMainSceneSizeHW()[0] = newHeightValue.doubleValue();
 					requestLayoutSave();
 				}
 			});
@@ -7396,6 +7541,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 					public void changed(ObservableValue<? extends Number> observableValue, Number oldDividerPos, Number newDividerPosition) {
 						System.out.println("<<<<<<<<<<<<<<<<<<<<<<<<< devider>>>>>> " + messageSectionSplitpane.getDividers().indexOf(divider)  + " position change, new position: " + newDividerPosition + " // size dev: " +  messageSectionSplitpane.getDividers().size());
 						chatcontroller.getChatPreferences().getGUImessageSectionSplitpane_dividerposition()[messageSectionSplitpane.getDividers().indexOf(divider)] = newDividerPosition.doubleValue();
 						requestLayoutSave();
 					}
 				});
@@ -8579,6 +8725,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 					public void changed(ObservableValue<? extends Number> observableValue, Number oldDividerPos, Number newDividerPosition) {
 						System.out.println("<<<<<<<<<<<<<<<<<<< mainWindowLeftSplitPanedevider " + mainWindowLeftSplitPane.getDividers().indexOf(divider)  + " position change, new position: " + newDividerPosition + " // size dev: " +  mainWindowLeftSplitPane.getDividers().size());
 						chatcontroller.getChatPreferences().getGUImainWindowLeftSplitPane_dividerposition()[mainWindowLeftSplitPane.getDividers().indexOf(divider)] = newDividerPosition.doubleValue();
 						requestLayoutSave();
 					}
 				});
@@ -8612,6 +8759,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 						if (dividerIndex >= 0 && dividerIndex < storedPositions.length) {
 							storedPositions[dividerIndex] = newDividerPosition.doubleValue();
 							requestLayoutSave();
 						} else {
 							// Avoid crashes if preferences are older than the current UI layout.
 							System.out.println("WARN: cannot store mainWindowRightSplitPane divider position: index="
@@ -8660,7 +8808,10 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		SplitPane pnl_directedMSGWin = new SplitPane();
 		pnl_directedMSGWin.setOrientation(Orientation.VERTICAL);
 		pnl_directedMSGWin.setDividerPositions(chatcontroller.getChatPreferences().getGUIpnl_directedMSGWin_dividerpositionDefault());
-		pnl_directedMSGWin.getItems().addAll(initDXClusterTable(), initChatToOtherMSGTable());
+		pnl_directedMSGWin.getItems().addAll(
 				initDXClusterTable("dx-cluster-monitor"),
 				initChatToOtherMSGTable("qso-other-monitor")
 		);
 		/**
@@ -8673,6 +8824,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				public void changed(ObservableValue<? extends Number> observableValue, Number oldDividerPos, Number newDividerPosition) {
 					System.out.println("<<<<<<<<<<<<<<<<<<<|||||||||||||||||||| devider " + pnl_directedMSGWin.getDividers().indexOf(divider)  + " position change, new position: " + newDividerPosition + " // size dev: " +  pnl_directedMSGWin.getDividers().size());
 					chatcontroller.getChatPreferences().getGUIpnl_directedMSGWin_dividerpositionDefault()[pnl_directedMSGWin.getDividers().indexOf(divider)] = newDividerPosition.doubleValue();
 					requestLayoutSave();
 				}
 			});
@@ -8686,6 +8838,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			@Override
 			public void changed(ObservableValue<? extends Number> observableValue, Number number, Number newHeightValue) {
 				chatcontroller.getChatPreferences().getGUIclusterAndQSOMonStage_SceneSizeHW()[1] = newHeightValue.doubleValue();
 				requestLayoutSave();
 			}
 		});
@@ -8693,6 +8846,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			@Override
 			public void changed(ObservableValue<? extends Number> observableValue, Number number, Number newWidthValue) {
 				chatcontroller.getChatPreferences().getGUIclusterAndQSOMonStage_SceneSizeHW()[0] = newWidthValue.doubleValue();
 				requestLayoutSave();
 			}
 		});
@@ -8806,6 +8960,14 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		System.out.println("SRVR Version: " + chatcontroller.getUpdateInformation().getLatestVersionNumberOnServer() + " // installed version " + ApplicationConstants.APPLICATION_CURRENTVERSIONNUMBER);
 		stage_updateStage.setScene(new Scene(vbxUpdateWindow, chatcontroller.getChatPreferences().getGUIstage_updateStage_SceneSizeHW()[0], chatcontroller.getChatPreferences().getGUIstage_updateStage_SceneSizeHW()[1]));
 		stage_updateStage.getScene().widthProperty().addListener((observable, oldValue, newValue) -> {
 			chatcontroller.getChatPreferences().getGUIstage_updateStage_SceneSizeHW()[0] = newValue.doubleValue();
 			requestLayoutSave();
 		});
 		stage_updateStage.getScene().heightProperty().addListener((observable, oldValue, newValue) -> {
 			chatcontroller.getChatPreferences().getGUIstage_updateStage_SceneSizeHW()[1] = newValue.doubleValue();
 			requestLayoutSave();
 		});
 //		if (chatcontroller.getUpdateInformation().getLatestVersionNumberOnServer() > ApplicationConstants.APPLICATION_CURRENTVERSIONNUMBER) {
@@ -10733,7 +10895,7 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 					testSpot.setFrequency(
 							new SimpleStringProperty("300")
 					);
-					testSpot.setQra("Testing DXC-Spot: Congrats, you donated $100!");
+					testSpot.setQra("DXC test: You donated $100!");
 					testSpot.setCallSign("DO5AMF");
 					if (!dxClusterServer
@@ -11374,6 +11536,8 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			confirmation.setContentText(
 					"This removes all worked markings, manually assigned NOT-QRV tags "
 							+ "and stored worked-grid information. The operation cannot be undone.\n\n"
 							+ "The selected Simplelogfile is not changed. Callsigns contained in it will be "
 							+ "marked as worked again when the file is read within the next minute.\n\n"
 							+ "A reset before every contest is normally not required because these data "
 							+ "expire automatically after three days."
 			);
@@ -11416,7 +11580,8 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 			information.setContentText(
 					affectedLines
 							+ " callsign database entries were updated. "
-							+ "Worked-grid data were cleared as well."
+							+ "Worked-grid data were cleared as well. The selected Simplelogfile was not changed; "
 							+ "callsigns contained in it will be marked as worked again when the file is next read."
 			);
 			information.show();
 		});
@@ -11756,7 +11921,10 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 				System.out.println("saved");
-				chatcontroller.getChatPreferences().writePreferencesToXmlFile();
+				if (chatcontroller.getChatPreferences().writePreferencesToXmlFile()
 						&& layoutAutosave != null) {
 					layoutAutosave.cancelPending();
 				}
 				Alert a = new Alert(AlertType.INFORMATION);
 				a.setTitle("Info");
@@ -11794,6 +11962,14 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 //        VBox vBox = new VBox(tabPaneOptions);
 		settingsScene = new Scene(optionsPanel, chatcontroller.getChatPreferences().getGUIsettingsStageSceneSizeHW()[0], chatcontroller.getChatPreferences().getGUIsettingsStageSceneSizeHW()[1]);
 		settingsScene.getStylesheets().add(ApplicationConstants.STYLECSSFILE_DEFAULT_DAYLIGHT);
 		settingsScene.widthProperty().addListener((observable, oldValue, newValue) -> {
 			chatcontroller.getChatPreferences().getGUIsettingsStageSceneSizeHW()[0] = newValue.doubleValue();
 			requestLayoutSave();
 		});
 		settingsScene.heightProperty().addListener((observable, oldValue, newValue) -> {
 			chatcontroller.getChatPreferences().getGUIsettingsStageSceneSizeHW()[1] = newValue.doubleValue();
 			requestLayoutSave();
 		});
 		settingsStage.setScene(settingsScene);
@@ -12129,6 +12305,34 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 		});
 	}
 	@Override
 	public void onSimpleLogFileCreated(Path filePath) {
 		Alert alert = new Alert(AlertType.INFORMATION);
 		alert.setTitle("Simplelogfile created");
 		alert.setHeaderText("The selected Simplelogfile did not exist and has been created");
 		Label explanation = new Label(
 				"File: " + filePath + "\n\n"
 						+ "First check whether you need the Simplelogfile integration. If your logging "
 						+ "application provides a supported network interface, use that interface for "
 						+ "band and locator information.\n\n"
 						+ "If you use Simplelogfile, configure your logging application to write its live log to this file. "
 						+ "Then log a test QSO and verify that the callsign is marked as worked "
 						+ "in KST4Contest within one minute.\n\n"
 						+ "Before each contest, verify that the logging application writes the current "
 						+ "contest log to this exact file. KST4Contest does not reset Simplelogfile-derived "
 						+ "Worked marks automatically when a new contest starts.");
 		explanation.setWrapText(true);
 		Hyperlink manualLink = new Hyperlink("Open the Simplelogfile manual");
 		manualLink.setOnAction(event -> getHostServices().showDocument(SIMPLE_LOG_MANUAL_URL));
 		VBox content = new VBox(10, explanation, manualLink);
 		content.setPrefWidth(560);
 		alert.getDialogPane().setContent(content);
 		alert.show();
 	}
 	/**
 	 * Forces the station FilteredList to evaluate all active predicates again.
@@ -12481,13 +12685,14 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 	}
 	private static <T> void applyQrgUiFormatting(TableColumn<T, String> col) {
-		col.setCellFactory(tc -> new TableCell<T, String>() {
+		col.setCellFactory(tc -> new TruncatedTextTableCell<>(Kst4ContestApplication::formatQrgForUi));
-			@Override
+	}
-			protected void updateItem(String item, boolean empty) {
+
-				super.updateItem(item, empty);
+	@SafeVarargs
-				setText(empty ? "" : formatQrgForUi(item));
+	private static <T> void applyTruncatedTextCells(TableColumn<T, String>... columns) {
-			}
+		for (TableColumn<T, String> column : columns) {
-		});
+			column.setCellFactory(ignored -> new TruncatedTextTableCell<>());
 		}
 	}
 	/**
@@ -0,0 +1,50 @@
 package kst4contest.view;
 import javafx.animation.PauseTransition;
 import javafx.application.Platform;
 import javafx.util.Duration;
 import kst4contest.model.ChatPreferences;
 import java.util.Objects;
 /**
 * Coalesces JavaFX layout changes into selective preferences writes.
 */
 public final class LayoutAutosave {
    private static final Duration SAVE_DELAY = Duration.millis(750);
    private final ChatPreferences preferences;
    private final PauseTransition saveDelay = new PauseTransition(SAVE_DELAY);
    private boolean pending;
    public LayoutAutosave(ChatPreferences preferences) {
        this.preferences = Objects.requireNonNull(preferences, "preferences");
        saveDelay.setOnFinished(event -> flushPending());
    }
    public void requestSave() {
        if (!Platform.isFxApplicationThread()) {
            Platform.runLater(this::requestSave);
            return;
        }
        pending = true;
        saveDelay.playFromStart();
    }
    public void flushPending() {
        if (!pending) {
            return;
        }
        saveDelay.stop();
        pending = false;
        preferences.writeLayoutPreferencesToXmlFile();
    }
    public void cancelPending() {
        saveDelay.stop();
        pending = false;
    }
 }
@@ -0,0 +1,280 @@
 package kst4contest.view;
 import javafx.application.Platform;
 import javafx.beans.value.ObservableValue;
 import javafx.collections.ListChangeListener;
 import javafx.scene.Node;
 import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.input.MouseEvent;
 import javafx.scene.text.Font;
 import javafx.scene.text.Text;
 import kst4contest.model.ChatPreferences;
 import java.util.IdentityHashMap;
 import java.util.Map;
 import java.util.Objects;
 import java.util.OptionalDouble;
 /**
 * Applies persisted leaf-column widths and performs one content-based initial
 * sizing pass when no width has been stored yet.
 */
 public final class TableLayoutManager {
    private static final double CELL_HORIZONTAL_PADDING = 16.0;
    private static final double DEFAULT_MINIMUM_WIDTH = 24.0;
    private TableLayoutManager() {
    }
    public static ColumnSpec column(String id, TableColumn<?, String> column) {
        return new ColumnSpec(id, column);
    }
    public static <S> void install(
            TableView<S> table,
            String tableId,
            ChatPreferences preferences,
            LayoutAutosave autosave,
            ColumnSpec... columnSpecs
    ) {
        Objects.requireNonNull(table, "table");
        Objects.requireNonNull(tableId, "tableId");
        Objects.requireNonNull(preferences, "preferences");
        Objects.requireNonNull(autosave, "autosave");
        Map<TableColumn<?, String>, ColumnState> states = new IdentityHashMap<>();
        for (ColumnSpec spec : columnSpecs) {
            if (spec == null || !spec.column.getColumns().isEmpty()) {
                continue;
            }
            if (spec.column.prefWidthProperty().isBound()) {
                spec.column.prefWidthProperty().unbind();
            }
            spec.column.setId(tableId + "." + spec.id);
            OptionalDouble storedWidth = preferences.getTableColumnWidth(tableId, spec.id);
            ColumnState state = new ColumnState(spec, storedWidth.isEmpty());
            states.put(spec.column, state);
            if (storedWidth.isPresent()) {
                setWidth(state, storedWidth.getAsDouble());
                state.initialized = true;
            }
            spec.column.widthProperty().addListener((observable, oldWidth, newWidth) -> {
                if (state.adjusting || !state.initialized || newWidth == null) {
                    return;
                }
                storeWidth(preferences, autosave, tableId, state.spec.id, newWidth.doubleValue());
            });
        }
        installEarlyManualResizeDetection(table, tableId, preferences, autosave, states);
        scheduleInitialSizingWhenUsable(table, tableId, preferences, autosave, states);
    }
    private static <S> void scheduleInitialSizingWhenUsable(
            TableView<S> table,
            String tableId,
            ChatPreferences preferences,
            LayoutAutosave autosave,
            Map<TableColumn<?, String>, ColumnState> states
    ) {
        if (states.values().stream().noneMatch(state -> !state.initialized)) {
            return;
        }
        if (table.getItems() != null && !table.getItems().isEmpty()) {
            Platform.runLater(() -> sizePendingColumns(table, tableId, preferences, autosave, states));
            return;
        }
        @SuppressWarnings("unchecked")
        final ListChangeListener<S>[] holder = new ListChangeListener[1];
        holder[0] = change -> {
            if (table.getItems() == null || table.getItems().isEmpty()) {
                return;
            }
            table.getItems().removeListener(holder[0]);
            Platform.runLater(() -> sizePendingColumns(table, tableId, preferences, autosave, states));
        };
        table.getItems().addListener(holder[0]);
    }
    private static <S> void sizePendingColumns(
            TableView<S> table,
            String tableId,
            ChatPreferences preferences,
            LayoutAutosave autosave,
            Map<TableColumn<?, String>, ColumnState> states
    ) {
        for (ColumnState state : states.values()) {
            if (state.initialized) {
                continue;
            }
            double width = state.spec.flexible
                    ? flexibleInitialWidth(table, state.spec)
                    : contentInitialWidth(table, state.spec);
            setWidth(state, width);
            state.initialized = true;
            storeWidth(preferences, autosave, tableId, state.spec.id, width);
        }
    }
    private static <S> double contentInitialWidth(TableView<S> table, ColumnSpec spec) {
        Text measurement = new Text();
        measurement.setFont(Font.getDefault());
        double requiredWidth = measure(spec.column.getText(), measurement);
        for (int rowIndex = 0; rowIndex < table.getItems().size(); rowIndex++) {
            ObservableValue<?> value = spec.column.getCellObservableValue(rowIndex);
            if (value == null || value.getValue() == null) {
                continue;
            }
            requiredWidth = Math.max(
                    requiredWidth,
                    measure(String.valueOf(value.getValue()), measurement)
            );
        }
        return calculateInitialContentWidth(
                requiredWidth,
                spec.minimumWidth,
                spec.maximumInitialWidth
        );
    }
    private static <S> double flexibleInitialWidth(TableView<S> table, ColumnSpec spec) {
        double tableShare = table.getWidth() > 1.0 ? table.getWidth() * 0.42 : spec.flexibleFallbackWidth;
        Text measurement = new Text();
        measurement.setFont(Font.getDefault());
        double headerWidth = measure(spec.column.getText(), measurement) + CELL_HORIZONTAL_PADDING;
        return clamp(Math.max(headerWidth, tableShare), spec.minimumWidth, spec.maximumInitialWidth);
    }
    private static <S> void installEarlyManualResizeDetection(
            TableView<S> table,
            String tableId,
            ChatPreferences preferences,
            LayoutAutosave autosave,
            Map<TableColumn<?, String>, ColumnState> states
    ) {
        Map<TableColumn<?, String>, Double> widthsAtHeaderPress = new IdentityHashMap<>();
        table.addEventFilter(MouseEvent.MOUSE_PRESSED, event -> {
            if (!isColumnHeaderEvent(event)) {
                return;
            }
            widthsAtHeaderPress.clear();
            states.forEach((column, state) -> widthsAtHeaderPress.put(column, column.getWidth()));
        });
        table.addEventFilter(MouseEvent.MOUSE_RELEASED, event -> {
            if (widthsAtHeaderPress.isEmpty()) {
                return;
            }
            states.forEach((column, state) -> {
                Double oldWidth = widthsAtHeaderPress.get(column);
                if (oldWidth == null || Math.abs(oldWidth - column.getWidth()) <= 0.5) {
                    return;
                }
                state.initialized = true;
                storeWidth(preferences, autosave, tableId, state.spec.id, column.getWidth());
            });
            widthsAtHeaderPress.clear();
        });
    }
    private static boolean isColumnHeaderEvent(MouseEvent event) {
        Object target = event.getTarget();
        Node node = target instanceof Node ? (Node) target : null;
        while (node != null && node.getParent() != null) {
            if (node.getStyleClass().contains("column-header")
                    || node.getStyleClass().contains("nested-column-header")) {
                return true;
            }
            node = node.getParent();
        }
        return false;
    }
    private static void setWidth(ColumnState state, double width) {
        state.adjusting = true;
        try {
            state.spec.column.setPrefWidth(width);
        } finally {
            state.adjusting = false;
        }
    }
    private static void storeWidth(
            ChatPreferences preferences,
            LayoutAutosave autosave,
            String tableId,
            String columnId,
            double width
    ) {
        preferences.setTableColumnWidth(tableId, columnId, width);
        autosave.requestSave();
    }
    private static double measure(String value, Text measurement) {
        measurement.setText(value == null ? "" : value);
        return measurement.getLayoutBounds().getWidth();
    }
    private static double clamp(double value, double minimum, double maximum) {
        return Math.max(minimum, Math.min(value, maximum));
    }
    /**
     * Calculates a compact content width. Package-private for focused sizing tests.
     */
    @SuppressWarnings("PMD.CommentDefaultAccessModifier")
    static double calculateInitialContentWidth(
            final double measuredWidth,
            final double minimum,
            final double maximum
    ) {
        return clamp(measuredWidth + CELL_HORIZONTAL_PADDING, minimum, maximum);
    }
    public static final class ColumnSpec {
        private final String id;
        private final TableColumn<?, String> column;
        private double minimumWidth = DEFAULT_MINIMUM_WIDTH;
        private double maximumInitialWidth = Double.MAX_VALUE;
        private double flexibleFallbackWidth = 320.0;
        private boolean flexible;
        private ColumnSpec(String id, TableColumn<?, String> column) {
            if (id == null || id.isBlank()) {
                throw new IllegalArgumentException("Column id must not be blank");
            }
            this.id = id;
            this.column = Objects.requireNonNull(column, "column");
        }
        public ColumnSpec maximumInitialWidth(double maximumInitialWidth) {
            this.maximumInitialWidth = maximumInitialWidth;
            return this;
        }
        public ColumnSpec flexible(double fallbackWidth) {
            flexible = true;
            flexibleFallbackWidth = fallbackWidth;
            return this;
        }
    }
    private static final class ColumnState {
        private final ColumnSpec spec;
        private boolean adjusting;
        private boolean initialized;
        private ColumnState(ColumnSpec spec, boolean awaitingInitialSizing) {
            this.spec = spec;
            initialized = !awaitingInitialSizing;
        }
    }
 }
@@ -0,0 +1,109 @@
 package kst4contest.view;
 import javafx.scene.control.TableCell;
 import javafx.scene.control.Tooltip;
 import javafx.scene.text.Text;
 import javafx.util.Duration;
 import java.util.function.Function;
 import java.util.function.BiFunction;
 /**
 * Displays text normally and exposes the full value only when it is clipped.
 * An optional functional explanation remains available and is combined with
 * the full value when both are needed.
 */
 public class TruncatedTextTableCell<S> extends TableCell<S, String> {
    private final Function<String, String> formatter;
    private final BiFunction<S, String, String> functionalTooltipProvider;
    private final Tooltip tooltip = new Tooltip();
    private final Text textMeasurement = new Text();
    private String fullText = "";
    public TruncatedTextTableCell() {
        this(Function.identity(), null);
    }
    public TruncatedTextTableCell(Function<String, String> formatter) {
        this(formatter, null);
    }
    public TruncatedTextTableCell(
            Function<String, String> formatter,
            BiFunction<S, String, String> functionalTooltipProvider
    ) {
        this.formatter = formatter == null ? Function.identity() : formatter;
        this.functionalTooltipProvider = functionalTooltipProvider;
        tooltip.setWrapText(true);
        tooltip.setMaxWidth(800);
        tooltip.setShowDelay(Duration.millis(250));
        tooltip.setShowDuration(Duration.seconds(30));
    }
    @Override
    protected void updateItem(String item, boolean empty) {
        super.updateItem(item, empty);
        if (empty || item == null) {
            fullText = "";
            setText(null);
            setGraphic(null);
            setTooltip(null);
            return;
        }
        String formatted = formatter.apply(item);
        fullText = formatted == null ? "" : formatted;
        setText(fullText);
        setGraphic(null);
        updateTooltip();
    }
    @Override
    protected void layoutChildren() {
        super.layoutChildren();
        updateTooltip();
    }
    private void updateTooltip() {
        if (isEmpty()) {
            setTooltip(null);
            return;
        }
        String functionalText = resolveFunctionalTooltip();
        boolean clipped = isTextClipped();
        String tooltipText = TruncatedTextTooltipSupport.buildTooltipText(
                fullText,
                clipped,
                functionalText
        );
        if (tooltipText == null) {
            setTooltip(null);
            return;
        }
        tooltip.setText(tooltipText);
        setTooltip(tooltip);
    }
    private String resolveFunctionalTooltip() {
        if (functionalTooltipProvider == null || getTableRow() == null) {
            return null;
        }
        return functionalTooltipProvider.apply(getTableRow().getItem(), fullText);
    }
    private boolean isTextClipped() {
        if (fullText.isEmpty()) {
            return false;
        }
        textMeasurement.setText(fullText);
        textMeasurement.setFont(getFont());
        double requiredWidth = textMeasurement.getLayoutBounds().getWidth();
        double availableWidth = Math.max(0.0,
                getWidth() - snappedLeftInset() - snappedRightInset() - 2.0);
        return TruncatedTextTooltipSupport.isTextClipped(requiredWidth, availableWidth);
    }
 }
@@ -0,0 +1,28 @@
 package kst4contest.view;
 /**
 * Pure tooltip decisions kept separate from JavaFX controls for unit testing.
 */
 final class TruncatedTextTooltipSupport {
    private TruncatedTextTooltipSupport() {
    }
    static boolean isTextClipped(double requiredWidth, double availableWidth) {
        return requiredWidth > availableWidth + 1.0;
    }
    static String buildTooltipText(String fullText, boolean clipped, String functionalText) {
        boolean hasFunctionalText = functionalText != null && !functionalText.isBlank();
        if (!clipped && !hasFunctionalText) {
            return null;
        }
        if (!clipped) {
            return functionalText;
        }
        if (!hasFunctionalText) {
            return fullText;
        }
        return fullText + "\n\n" + functionalText;
    }
 }
@@ -15,6 +15,7 @@ import java.nio.charset.StandardCharsets;
 * - grid / beam / connection use non-interactive panes
 * - JavaScript errors are forwarded to Java through javaMapBridge
 * - setTheme(light|dark) aligns the map with the JavaFX application theme
 * - setStationClusteringEnabled(boolean) re-renders the existing station data
 *
 * Important:
 * This version intentionally uses integer Leaflet zoom levels again.
@@ -356,6 +357,7 @@ public final class MapHtmlResources {
                         */
                        let stationData = [];
                        let stationsByCallsignRaw = {};
                        let stationClusteringEnabled = true;
                        let clustersById = {};
                        let clusterSequence = 0;
@@ -810,13 +812,19 @@ public final class MapHtmlResources {
                                return;
                            }
-                            if (Number(map.getZoom()) >= KST_CLUSTER_DISABLE_ZOOM) {
+                            if (!stationClusteringEnabled
                                    || Number(map.getZoom()) >= KST_CLUSTER_DISABLE_ZOOM) {
                                renderAllStationsIndividually();
                            } else {
                                renderClusteredStations();
                            }
                        }
                        function setStationClusteringEnabled(enabled) {
                            stationClusteringEnabled = Boolean(enabled);
                            renderStationMarkers();
                        }
                        /**
                         * Zooms into a cluster.
                         *
@@ -1271,6 +1279,7 @@ public final class MapHtmlResources {
                            getViewportState: getViewportState,
                            setHome: setHome,
                            setStations: setStations,
                            setStationClusteringEnabled: setStationClusteringEnabled,
                            setBeam: setBeam,
                            setConnection: setConnection,
                            setProfileHoverPoint: setProfileHoverPoint,
@@ -1284,4 +1293,4 @@ public final class MapHtmlResources {
                </html>
                """.replace("__TILE_PROXY_PORT__", String.valueOf(tileProxyPort));
    }
-}
+}
@@ -14,16 +14,17 @@ import java.util.Locale;
 /**
 * Small helper service for preparing and filling the local offline DEM directory.
 *
- * <p>This is intentionally the first practical step before adding a real network
+ * <p>This service only prepares local data for a possible future offline terrain
- * downloader:
+ * provider:
 * <ul>
 *     <li>create a known default Copernicus DEM root directory below .praktiKST</li>
 *     <li>copy manually selected local *_DEM.tif files into that directory</li>
 * </ul>
 *
- * <p>The active terrain provider already scans the configured root directory
+ * <p>Importing files does not activate an offline provider or change the terrain
- * recursively. Therefore it is sufficient to import valid Copernicus DGED
+ * calculation chain. The active provider remains Open-Meteo with Copernicus GLO-90
- * GeoTIFF files into one dedicated folder tree.</p>
+ * data. Valid Copernicus GLO-30 DGED GeoTIFF files are only copied into the prepared
 * directory tree.</p>
 */
 public final class OfflineDemImportService {
@@ -229,4 +230,4 @@ public final class OfflineDemImportService {
            String message
    ) {
    }
-}
+}
@@ -59,6 +59,7 @@ public final class StationMapView {
    private final Label detailPathModeValue = new Label("-");
    private final ChatPreferences chatPreferences;
    private final Runnable layoutSaveRequester;
    private final Stage stage = new Stage();
    private final WebView webView = new WebView();
@@ -89,6 +90,9 @@ public final class StationMapView {
    private final Button resetViewButton = new Button("Reset view");
    private final Tooltip statusTooltip = new Tooltip();
    private final CheckBox stationClusteringCheckBox = new CheckBox("Group nearby stations");
    private final Tooltip stationClusteringTooltip = new Tooltip(
            "Group nearby stations into clusters at lower zoom levels.");
    private Runnable onResetView;
@@ -180,7 +184,12 @@ public final class StationMapView {
    public StationMapView(ChatPreferences chatPreferences) {
        this(chatPreferences, () -> { });
    }
    public StationMapView(ChatPreferences chatPreferences, Runnable layoutSaveRequester) {
        this.chatPreferences = Objects.requireNonNull(chatPreferences, "chatPreferences");
        this.layoutSaveRequester = Objects.requireNonNull(layoutSaveRequester, "layoutSaveRequester");
        GuiUtils.applyApplicationIcon(stage);
        try {
@@ -327,6 +336,21 @@ public final class StationMapView {
            }
        });
        stationClusteringCheckBox.setMinWidth(Region.USE_PREF_SIZE);
        stationClusteringCheckBox.setTooltip(stationClusteringTooltip);
        stationClusteringCheckBox.setAccessibleText("Group nearby stations");
        stationClusteringCheckBox.setAccessibleHelp(stationClusteringTooltip.getText());
        stationClusteringCheckBox.setSelected(chatPreferences.isGUIstationMapClusteringEnabled());
        stationClusteringCheckBox.selectedProperty().addListener((obs, oldValue, newValue) -> {
            boolean enabled = newValue;
            chatPreferences.setGUIstationMapClusteringEnabled(enabled);
            if (mapReady) {
                executeMapScriptSafely(
                        "window.kstMapApi.setStationClusteringEnabled(" + enabled + ");");
            }
            layoutSaveRequester.run();
        });
        pathAnalysisVisibilityButton.setMinWidth(Region.USE_PREF_SIZE);
        pathAnalysisVisibilityButton.setTooltip(pathAnalysisVisibilityTooltip);
        pathAnalysisVisibilityButton.setOnAction(event ->
@@ -461,17 +485,25 @@ public final class StationMapView {
            stage.setY(pos[1]);
        }
-        stage.widthProperty().addListener((obs, oldValue, newValue) ->
+        stage.widthProperty().addListener((obs, oldValue, newValue) -> {
-                chatPreferences.getGUIstationMapStageSceneSizeHW()[0] = newValue.doubleValue());
+            chatPreferences.getGUIstationMapStageSceneSizeHW()[0] = newValue.doubleValue();
            layoutSaveRequester.run();
        });
-        stage.heightProperty().addListener((obs, oldValue, newValue) ->
+        stage.heightProperty().addListener((obs, oldValue, newValue) -> {
-                chatPreferences.getGUIstationMapStageSceneSizeHW()[1] = newValue.doubleValue());
+            chatPreferences.getGUIstationMapStageSceneSizeHW()[1] = newValue.doubleValue();
            layoutSaveRequester.run();
        });
-        stage.xProperty().addListener((obs, oldValue, newValue) ->
+        stage.xProperty().addListener((obs, oldValue, newValue) -> {
-                chatPreferences.getGUIstationMapStagePositionXY()[0] = newValue.doubleValue());
+            chatPreferences.getGUIstationMapStagePositionXY()[0] = newValue.doubleValue();
            layoutSaveRequester.run();
        });
-        stage.yProperty().addListener((obs, oldValue, newValue) ->
+        stage.yProperty().addListener((obs, oldValue, newValue) -> {
-                chatPreferences.getGUIstationMapStagePositionXY()[1] = newValue.doubleValue());
+            chatPreferences.getGUIstationMapStagePositionXY()[1] = newValue.doubleValue();
            layoutSaveRequester.run();
        });
        stage.setOnShown(event -> Platform.runLater(() -> {
            webView.requestFocus();
@@ -521,6 +553,7 @@ public final class StationMapView {
                statusLabel,
                triggerClusterSpotButton,
                resetViewButton,
                stationClusteringCheckBox,
                pathAnalysisHiddenHintLabel,
                pathAnalysisVisibilityButton
        );
@@ -794,6 +827,9 @@ public final class StationMapView {
                window.setMember("javaMapBridge", javaMapBridge);
                executeMapScriptSafely("window.kstMapApi.init();");
                executeMapScriptSafely(
                        "window.kstMapApi.setStationClusteringEnabled("
                                + chatPreferences.isGUIstationMapClusteringEnabled() + ");");
                mapReady = true;
                applyMapThemeToWebView(chatPreferences.isGUI_darkModeActive());
@@ -0,0 +1,85 @@
 package kst4contest.controller;
 import kst4contest.model.ChatCategory;
 import kst4contest.model.ChatMember;
 import org.junit.jupiter.api.Test;
 import java.sql.SQLException;
 import java.util.HashMap;
 import java.util.List;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 class ChatControllerInitialWorkedStateTest {
    @Test
    void loadsEachCompletedInitialListOnceAndAppliesStateToEveryVariant()
            throws SQLException {
        DBController database = mock(DBController.class);
        ChatMember stored = member("9A0BB", 2);
        stored.setWorked(true);
        stored.setWorked144(true);
        stored.setWorked10G(true);
        stored.setQrv432(false);
        HashMap<String, ChatMember> databaseSnapshot = new HashMap<>();
        databaseSnapshot.put(stored.getCallSignRaw(), stored);
        when(database.fetchChatMemberWkdDataFromDB())
                .thenReturn(databaseSnapshot);
        ChatController controller = new ChatController();
        controller.setDbHandler(database);
        ChatMember mainVariant = member("9A0BB-2", 2);
        ChatMember secondVariant = member("9A0BB-70", 3);
        ChatMember reconnectMainVariant = member("9A0BB-144", 2);
        ChatMember reconnectSecondVariant = member("9A0BB-432", 3);
        controller.loadWorkedStateForInitialUserList(List.of(mainVariant));
        controller.loadWorkedStateForInitialUserList(List.of(secondVariant));
        controller.loadWorkedStateForInitialUserList(
                List.of(reconnectMainVariant));
        controller.loadWorkedStateForInitialUserList(
                List.of(reconnectSecondVariant));
        verify(database, times(4)).fetchChatMemberWkdDataFromDB();
        for (ChatMember variant : List.of(
                mainVariant,
                secondVariant,
                reconnectMainVariant,
                reconnectSecondVariant
        )) {
            assertTrue(variant.isWorked());
            assertTrue(variant.isWorked144());
            assertTrue(variant.isWorked10G());
            assertFalse(variant.isQrv432());
        }
    }
    @Test
    void keepsAmbiguousStationNameFromReplacingCompatibilityFrequency() {
        ChatController controller = new ChatController();
        ChatMember member = member("DL1ABC", 2);
        member.setName("144307 and 432100");
        controller.initializeFrequencyFromStationNameIfUnambiguous(member);
        assertTrue(
                member.getFrequency() == null
                        || member.getFrequency().get() == null
                        || member.getFrequency().get().isBlank()
        );
    }
    private static ChatMember member(String callSign, int categoryNumber) {
        ChatMember member = new ChatMember();
        member.setCallSign(callSign);
        member.setChatCategory(new ChatCategory(categoryNumber));
        return member;
    }
 }
@@ -0,0 +1,51 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.util.List;
 import java.util.Set;
 import kst4contest.model.ChatMember;
 import kst4contest.model.ClusterMessage;
 import org.junit.jupiter.api.Test;
 class ChatControllerSimpleLogTest {
 	@Test
 	void marksEveryActiveVariantOfWorkedBaseCallsign() {
 		ChatMember categoryTwoVariant = member("9A0BB-2");
 		ChatMember categoryThreeVariant = member("9A0BB-70");
 		ChatMember unrelated = member("DL1ABC");
 		int changed = ChatController.markSimpleLogWorkedMembers(
 				List.of(categoryTwoVariant, categoryThreeVariant, unrelated),
 				Set.of("9A0BB"));
 		assertEquals(2, changed);
 		assertTrue(categoryTwoVariant.isWorked());
 		assertTrue(categoryThreeVariant.isWorked());
 		assertFalse(unrelated.isWorked());
 	}
 	@Test
 	void marksClusterReceiverByBaseCallsignAndHandlesIncompleteMessages() {
 		ClusterMessage matching = new ClusterMessage();
 		matching.setReceiver(member("9A0BB-70"));
 		ClusterMessage incomplete = new ClusterMessage();
 		int changed = ChatController.markSimpleLogWorkedClusterMessages(
 				List.of(matching, incomplete), Set.of("9A0BB"));
 		assertEquals(1, changed);
 		assertTrue(matching.isReceiverWkd());
 		assertFalse(incomplete.isReceiverWkd());
 	}
 	private static ChatMember member(String callSign) {
 		ChatMember member = new ChatMember();
 		member.setCallSign(callSign);
 		return member;
 	}
 }
@@ -0,0 +1,138 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import java.nio.charset.StandardCharsets;
 import java.util.stream.Stream;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 class DXClusterSpotFormatterTest {
    @ParameterizedTest
    @MethodSource("supportedFrequencies")
    void keepsFixedColumnsAcrossSupportedFrequencies(
            String spotter,
            String frequency
    ) {
        String line = DXClusterSpotFormatter.formatLine(
                spotter,
                frequency,
                "DL5ASG",
                "JO51HK",
                "1234Z"
        );
        assertEquals(DXClusterSpotFormatter.LINE_LENGTH, line.length());
        assertEquals(
                "DL5ASG",
                line.substring(
                        DXClusterSpotFormatter.DX_CALL_COLUMN - 1,
                        DXClusterSpotFormatter.DX_CALL_COLUMN - 1 + 6
                )
        );
        assertEquals(
                "JO51HK",
                line.substring(39, 45)
        );
        assertEquals(
                "1234Z",
                line.substring(DXClusterSpotFormatter.TIME_COLUMN - 1)
        );
        assertEquals(
                frequency,
                line.substring(0, 24).trim().replaceFirst("^DX de .+?:\\s*", "")
        );
    }
    @Test
    void padsShortCommentsAndTruncatesLongCommentsToThirtyCharacters() {
        String shortLine = DXClusterSpotFormatter.formatLine(
                "DM5M",
                "144205.0",
                "DL5ASG",
                "JO51HK",
                "1234Z"
        );
        String longLine = DXClusterSpotFormatter.formatLine(
                "DM5M",
                "144205.0",
                "DL5ASG",
                "123456789012345678901234567890EXTRA",
                "1234Z"
        );
        assertEquals(
                "JO51HK" + " ".repeat(24),
                shortLine.substring(39, 69)
        );
        assertEquals(
                "123456789012345678901234567890",
                longLine.substring(39, 69)
        );
    }
    @Test
    void keepsVariableDxCallsignsWithoutMovingTheComment() {
        String twelveCharacterLine = DXClusterSpotFormatter.formatLine(
                "DO5AMF",
                "24048100.0",
                "ABCDEFGHIJKL",
                "JO51HK AP 1m/100%;4m/75%",
                "2359Z"
        );
        assertEquals("ABCDEFGHIJKL", twelveCharacterLine.substring(26, 38));
        assertEquals(
                "JO51HK AP 1m/100%;4m/75%" + " ".repeat(6),
                twelveCharacterLine.substring(39, 69)
        );
        assertThrows(
                IllegalArgumentException.class,
                () -> DXClusterSpotFormatter.formatLine(
                        "DO5AMF",
                        "144205.0",
                        "ABCDEFGHIJKLM",
                        "JO51HK",
                        "2359Z"
                )
        );
    }
    @Test
    void appendsExactlyTwoBellCharactersAndCrlf() {
        byte[] payload = DXClusterSpotFormatter.formatPayload(
                "DM5M",
                "50200.0",
                "DL5ASG",
                "JO51HK",
                "0000Z"
        );
        assertEquals(DXClusterSpotFormatter.LINE_LENGTH + 4, payload.length);
        assertEquals(7, payload[75]);
        assertEquals(7, payload[76]);
        assertEquals('\r', payload[77]);
        assertEquals('\n', payload[78]);
        assertEquals(
                75,
                new String(payload, 0, 75, StandardCharsets.US_ASCII).length()
        );
    }
    private static Stream<Arguments> supportedFrequencies() {
        return Stream.of(
                Arguments.of("DM5M", "50200.0"),
                Arguments.of("DO5AMF", "70250.0"),
                Arguments.of("DM5M", "144205.0"),
                Arguments.of("DO5AMF", "432088.0"),
                Arguments.of("DM5M", "1296338.0"),
                Arguments.of("DO5AMF", "10368100.0"),
                Arguments.of("DO5AMF", "24048100.0")
        );
    }
 }
@@ -0,0 +1,173 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.util.List;
 import java.util.stream.Stream;
 import kst4contest.model.ChatMember;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 class ExternalLoggedQsoTest {
 	@ParameterizedTest
 	@MethodSource("loggerBandAliases")
 	void resolvesEveryLoggerBandAlias(String rawValue, LoggedQsoBand expectedBand) {
 		assertEquals(expectedBand, LoggedQsoBand.fromLoggerValue(rawValue));
 	}
 	@ParameterizedTest
 	@MethodSource("winTestBandIds")
 	void resolvesEveryExistingWinTestBandId(String rawValue, LoggedQsoBand expectedBand) {
 		assertEquals(expectedBand, LoggedQsoBand.fromWinTestBandId(rawValue));
 	}
 	@Test
 	void unknownOrMissingBandRemainsUnavailable() {
 		assertNull(LoggedQsoBand.fromLoggerValue(null));
 		assertNull(LoggedQsoBand.fromLoggerValue(""));
 		assertNull(LoggedQsoBand.fromLoggerValue("unknown"));
 		assertNull(LoggedQsoBand.fromWinTestBandId(null));
 		assertNull(LoggedQsoBand.fromWinTestBandId("99"));
 	}
 	@Test
 	void missingCallsignIsRejectedBeforeAnyStateIsBuilt() {
 		assertTrue(ExternalLoggedQso.create(null, LoggedQsoBand.BAND_144, "JO50AA", "TEST").isEmpty());
 		assertTrue(ExternalLoggedQso.create("   ", LoggedQsoBand.BAND_144, "JO50AA", "TEST").isEmpty());
 	}
 	@Test
 	void missingBandSetsOnlyGlobalWorkedState() {
 		ExternalLoggedQso qso = qso("DL1ABC", null, null);
 		ChatMember workedCall = qso.toWorkedChatMember();
 		assertTrue(workedCall.isWorked());
 		assertFalse(workedCall.isWorked50());
 		assertFalse(workedCall.isWorked70());
 		assertFalse(workedCall.isWorked144());
 		assertFalse(workedCall.isWorked2300());
 		assertNull(workedCall.getQra());
 	}
 	@Test
 	void winTest50And70MhzIdsSetTheirExistingFlags() {
 		String qso50Packet = winTestAddQsoPacket("10", "DL1ABC");
 		String qso70Packet = winTestAddQsoPacket("11", "DL1ABC");
 		String band50Id = ReadUDPByWintestThread.extractBandIdFromWinTestAddQso(qso50Packet);
 		String band70Id = ReadUDPByWintestThread.extractBandIdFromWinTestAddQso(qso70Packet);
 		ChatMember worked50 = qso("DL1ABC", LoggedQsoBand.fromWinTestBandId(band50Id), null)
 				.toWorkedChatMember();
 		ChatMember worked70 = qso("DL1ABC", LoggedQsoBand.fromWinTestBandId(band70Id), null)
 				.toWorkedChatMember();
 		assertEquals("10", band50Id);
 		assertEquals("11", band70Id);
 		assertTrue(worked50.isWorked50());
 		assertTrue(worked70.isWorked70());
 	}
 	@Test
 	void winTest47And76GhzFlagsRemainAvailableWithoutInventingProjectBands() {
 		LoggedQsoBand band47 = LoggedQsoBand.fromWinTestBandId("22");
 		LoggedQsoBand band76 = LoggedQsoBand.fromWinTestBandId("23");
 		ChatMember worked47 = qso("DL1ABC", band47, "JO50AA").toWorkedChatMember();
 		ChatMember worked76 = qso("DL1ABC", band76, "JO50AA").toWorkedChatMember();
 		assertTrue(worked47.isWorked47G());
 		assertTrue(worked76.isWorked76G());
 		assertNull(band47.getProjectBand());
 		assertNull(band76.getProjectBand());
 	}
 	@Test
 	void normalized2320AliasUpdatesEveryActiveCallsignVariant() {
 		ChatMember firstVariant = member("9A0BB-2");
 		ChatMember secondVariant = member("9A0BB-70");
 		ChatMember unrelated = member("DL1ABC");
 		ExternalLoggedQso qso = qso(
 				"9A0BB", LoggedQsoBand.fromLoggerValue(" 2320 "), "JO50AA");
 		int updated = ChatController.markExternalLoggedQsoMembers(
 				List.of(firstVariant, secondVariant, unrelated), qso);
 		assertEquals(2, updated);
 		assertTrue(firstVariant.isWorked());
 		assertTrue(firstVariant.isWorked2300());
 		assertEquals("JO50AA", firstVariant.getQra());
 		assertTrue(secondVariant.isWorked());
 		assertTrue(secondVariant.isWorked2300());
 		assertEquals("JO50AA", secondVariant.getQra());
 		assertFalse(unrelated.isWorked());
 	}
 	private static Stream<Arguments> loggerBandAliases() {
 		return Stream.of(
 				Arguments.of("50", LoggedQsoBand.BAND_50),
 				Arguments.of("6m", LoggedQsoBand.BAND_50),
 				Arguments.of("70", LoggedQsoBand.BAND_70),
 				Arguments.of("4m", LoggedQsoBand.BAND_70),
 				Arguments.of("144", LoggedQsoBand.BAND_144),
 				Arguments.of("2m", LoggedQsoBand.BAND_144),
 				Arguments.of("432", LoggedQsoBand.BAND_432),
 				Arguments.of("70cm", LoggedQsoBand.BAND_432),
 				Arguments.of("1240", LoggedQsoBand.BAND_1296),
 				Arguments.of("1296", LoggedQsoBand.BAND_1296),
 				Arguments.of("23cm", LoggedQsoBand.BAND_1296),
 				Arguments.of("2300", LoggedQsoBand.BAND_2320),
 				Arguments.of(" 2320 ", LoggedQsoBand.BAND_2320),
 				Arguments.of("13cm", LoggedQsoBand.BAND_2320),
 				Arguments.of("3400", LoggedQsoBand.BAND_3400),
 				Arguments.of("9cm", LoggedQsoBand.BAND_3400),
 				Arguments.of("5600", LoggedQsoBand.BAND_5760),
 				Arguments.of(" 5760 ", LoggedQsoBand.BAND_5760),
 				Arguments.of("6cm", LoggedQsoBand.BAND_5760),
 				Arguments.of("10G", LoggedQsoBand.BAND_10G),
 				Arguments.of(" 10368 ", LoggedQsoBand.BAND_10G),
 				Arguments.of("3cm", LoggedQsoBand.BAND_10G)
 		);
 	}
 	private static Stream<Arguments> winTestBandIds() {
 		return Stream.of(
 				Arguments.of(" 10 ", LoggedQsoBand.BAND_50),
 				Arguments.of("11", LoggedQsoBand.BAND_70),
 				Arguments.of("12", LoggedQsoBand.BAND_144),
 				Arguments.of("14", LoggedQsoBand.BAND_432),
 				Arguments.of("16", LoggedQsoBand.BAND_1296),
 				Arguments.of("17", LoggedQsoBand.BAND_2320),
 				Arguments.of("18", LoggedQsoBand.BAND_3400),
 				Arguments.of("19", LoggedQsoBand.BAND_5760),
 				Arguments.of("20", LoggedQsoBand.BAND_10G),
 				Arguments.of("21", LoggedQsoBand.BAND_24G),
 				Arguments.of("22", LoggedQsoBand.BAND_47G),
 				Arguments.of("23", LoggedQsoBand.BAND_76G)
 		);
 	}
 	private static ExternalLoggedQso qso(
 			String callSign,
 			LoggedQsoBand band,
 			String locator
 	) {
 		return ExternalLoggedQso.create(callSign, band, locator, "TEST").orElseThrow();
 	}
 	private static ChatMember member(String callSign) {
 		ChatMember member = new ChatMember();
 		member.setCallSign(callSign);
 		return member;
 	}
 	private static String winTestAddQsoPacket(String bandId, String callSign) {
 		return "ADDQSO: \"STN1\" \"\" \"STN1\" 1762202297 1440000 0 "
 				+ bandId + " 0 0 0 2 2 \"" + callSign
 				+ "\" \"599\" \"599001\" \"JO51UM\" \"\" \"\" 0 \"\" \"\" \"\" 44510";
 	}
 }
@@ -0,0 +1,61 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 import kst4contest.model.ChatPreferences;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
@ExtendWith(MockitoExtension.class)
 class ExternalLoggerListenerValidationTest {
 	@Mock
 	ChatController controller;
 	@Mock
 	ChatPreferences preferences;
 	@Mock
 	ThreadStatusCallback statusCallback;
 	@BeforeEach
 	void configurePreferences() {
 		when(controller.getChatPreferences()).thenReturn(preferences);
 	}
 	@Test
 	void ucxLogPacketWithoutCallsignIsDiscardedWithoutStoppingProcessing() {
 		when(preferences.isLogsynch_ucxUDPWkdCallListenerEnabled()).thenReturn(true);
 		ReadUDPbyUCXMessageThread listener = new ReadUDPbyUCXMessageThread(
 				12060, controller, statusCallback);
 		String packet = "<?xml version=\"1.0\"?><contactinfo>"
 				+ "<band>144</band><call>   </call><gridsquare>JO50AA</gridsquare>"
 				+ "</contactinfo>";
 		assertDoesNotThrow(() -> listener.processUCXUDPMessage(packet));
 		verify(controller, never()).applyExternalLoggedQso(any());
 		verify(controller, never()).getDbHandler();
 	}
 	@Test
 	void winTestPacketWithoutCallsignIsDiscardedWithoutStoppingProcessing() {
 		when(preferences.getStn_loginCallSignRaw()).thenReturn("DL0TEST");
 		when(preferences.getLogsynch_wintestNetworkPort()).thenReturn(9871);
 		ReadUDPByWintestThread listener = new ReadUDPByWintestThread(controller, statusCallback);
 		String packet = "ADDQSO: \"STN1\" \"\" \"STN1\" 1762202297 1440000 0 12 0 0 0 2 2 "
 				+ "\"   \" \"599\" \"599001\" \"JO51UM\" \"\" \"\" 0 \"\" \"\" \"\" 44510";
 		assertDoesNotThrow(() -> listener.processWinTestMessage(packet));
 		verify(controller, never()).applyExternalLoggedQso(any());
 		verify(controller, never()).getDbHandler();
 	}
 }
@@ -0,0 +1,51 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import javafx.collections.FXCollections;
 import kst4contest.model.AirPlane;
 import kst4contest.model.AirPlaneReflectionInfo;
 import kst4contest.model.ChatMember;
 import org.junit.jupiter.api.Test;
 class MessageBusManagementThreadDxClusterCommentTest {
    @Test
    void keepsLocatorAndAddsCompactAirScoutInformation() {
        ChatMember sender = new ChatMember();
        sender.setQra("jo51hk");
        AirPlane firstAircraft = new AirPlane();
        firstAircraft.setArrivingDurationMinutes(1);
        firstAircraft.setPotential(100);
        AirPlane secondAircraft = new AirPlane();
        secondAircraft.setArrivingDurationMinutes(4);
        secondAircraft.setPotential(75);
        AirPlaneReflectionInfo reflectionInfo = new AirPlaneReflectionInfo();
        reflectionInfo.setRisingAirplanes(
                FXCollections.observableArrayList(
                        firstAircraft,
                        secondAircraft
                )
        );
        sender.setAirPlaneReflectInfo(reflectionInfo);
        assertEquals(
                "JO51HK AP 1m/100%;4m/75%",
                MessageBusManagementThread.buildDxClusterSpotComment(sender)
        );
    }
    @Test
    void returnsLocatorWhenAirScoutInformationIsMissing() {
        ChatMember sender = new ChatMember();
        sender.setQra("JO51HK");
        assertEquals(
                "JO51HK",
                MessageBusManagementThread.buildDxClusterSpotComment(sender)
        );
    }
 }
@@ -0,0 +1,52 @@
 package kst4contest.controller;
 import kst4contest.model.Band;
 import kst4contest.model.ChatMember;
 import kst4contest.model.ChatMessage;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.ValueSource;
 import java.util.concurrent.LinkedBlockingQueue;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
 class MessageBusManagementThreadFrequencyTest {
    @ParameterizedTest
    @ValueSource(booleans = {false, true})
    void detectsCompactMicrowaveFrequencyInPublicAndDirectedMessages(
            boolean directedMessage
    ) {
        ChatController controller = mock(ChatController.class);
        ThreadStatusCallback callback = mock(ThreadStatusCallback.class);
        MessageBusManagementThread messageBus =
                new MessageBusManagementThread(
                        controller,
                        callback,
                        1L,
                        new LinkedBlockingQueue<>(),
                        ignored -> true
                );
        ChatMember sender = member("DL1ABC");
        ChatMessage message = new ChatMessage();
        message.setSender(sender);
        message.setReceiver(member(directedMessage ? "DL2XYZ" : "ALL"));
        message.setMessageText("pse try 10368100");
        messageBus.smartFrequencyExtraction(message, null);
        verify(controller).applyDetectedFrequencyToActiveMembers(
                sender,
                Band.B_10G,
                10368.100
        );
    }
    private static ChatMember member(String callSign) {
        ChatMember member = new ChatMember();
        member.setCallSign(callSign);
        return member;
    }
 }
@@ -0,0 +1,76 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.mockito.ArgumentMatchers.anySet;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import kst4contest.model.ChatPreferences;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.junit.jupiter.api.io.TempDir;
 import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
@ExtendWith(MockitoExtension.class)
 class UserActualizationTaskTest {
 	@TempDir
 	Path temporaryDirectory;
 	@Mock
 	ChatController controller;
 	@Mock
 	ChatPreferences preferences;
 	@BeforeEach
 	void configureControllerPreferences() {
 		when(controller.getChatPreferences()).thenReturn(preferences);
 	}
 	@Test
 	void disabledInterpreterDoesNotCreateOrReadFile() {
 		when(preferences.isLogsynch_fileBasedWkdCallInterpreterEnabled()).thenReturn(false);
 		new UserActualizationTask(controller).run();
 		verify(controller, never()).applySimpleLogWorkedBaseCalls(anySet());
 		verify(controller, never()).notifySimpleLogFileCreated(org.mockito.ArgumentMatchers.any());
 	}
 	@Test
 	void createsMissingFileAndNotifiesOnlyOnce() {
 		Path logFile = temporaryDirectory.resolve("created.log").toAbsolutePath().normalize();
 		when(preferences.isLogsynch_fileBasedWkdCallInterpreterEnabled()).thenReturn(true);
 		when(preferences.getLogsynch_fileBasedWkdCallInterpreterFileNameReadOnly())
 				.thenReturn(logFile.toString());
 		UserActualizationTask task = new UserActualizationTask(controller);
 		task.run();
 		task.run();
 		assertTrue(Files.isRegularFile(logFile));
 		verify(controller, times(2)).applySimpleLogWorkedBaseCalls(anySet());
 		verify(controller, times(1)).notifySimpleLogFileCreated(logFile);
 	}
 	@Test
 	void readFailureIsContainedAndDoesNotUpdateUiState() {
 		when(preferences.isLogsynch_fileBasedWkdCallInterpreterEnabled()).thenReturn(true);
 		when(preferences.getLogsynch_fileBasedWkdCallInterpreterFileNameReadOnly())
 				.thenReturn(temporaryDirectory.toString());
 		assertDoesNotThrow(() -> new UserActualizationTask(controller).run());
 		verify(controller, never()).applySimpleLogWorkedBaseCalls(anySet());
 		verify(controller, never()).notifySimpleLogFileCreated(org.mockito.ArgumentMatchers.any());
 	}
 }
@@ -0,0 +1,71 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.util.List;
 import java.util.Optional;
 import org.junit.jupiter.api.Test;
 class WinTestIhaveInventoryTest {
 	private static Optional<WinTestIhaveInventory> parse(String messageText) {
 		return WinTestIhaveInventory.fromPacket(WinTestPacket.fromMessageText(messageText));
 	}
 	@Test
 	void inventoryStartingWithPresentQsosIsExpanded() {
 		Optional<WinTestIhaveInventory> inventory =
 				parse("IHAVE: \"STN1\" \"\" \"STN1@9\" E 1 1 911-1-117");
 		assertTrue(inventory.isPresent());
 		assertEquals("STN1@9", inventory.get().getLogId());
 		assertEquals(WinTestIhaveInventory.Origin.LOGGED_ELSE, inventory.get().getOrigin());
 		assertEquals(
 				List.of(new WinTestLogSegment(1L, 911L), new WinTestLogSegment(913L, 1029L)),
 				inventory.get().getSegments());
 		assertEquals(1029L, inventory.get().getHighestQsoNumber());
 	}
 	@Test
 	void inventoryStartingWithMissingQsosIsExpanded() {
 		Optional<WinTestIhaveInventory> inventory =
 				parse("IHAVE: \"STN1\" \"\" \"STN1@9\" O 1 0 30-5");
 		assertTrue(inventory.isPresent());
 		assertEquals(WinTestIhaveInventory.Origin.OWNER, inventory.get().getOrigin());
 		assertEquals(List.of(new WinTestLogSegment(31L, 35L)), inventory.get().getSegments());
 	}
 	@Test
 	void splitInventoryStartsAtItsFirstRow() {
 		/*
 		 * Win-Test splits long inventories. The documented example "100 1 10-5-5"
 		 * means: ten QSOs from 100, five missing, five present again.
 		 */
 		Optional<WinTestIhaveInventory> inventory =
 				parse("IHAVE: \"STN1\" \"\" \"STN1@9\" O 100 1 10-5-5");
 		assertTrue(inventory.isPresent());
 		assertEquals(
 				List.of(new WinTestLogSegment(100L, 109L), new WinTestLogSegment(115L, 119L)),
 				inventory.get().getSegments());
 	}
 	@Test
 	void runLengthChainWithWrongParityIsRejected() {
 		assertTrue(parse("IHAVE: \"STN1\" \"\" \"STN1@9\" O 1 1 10-5").isEmpty());
 		assertTrue(parse("IHAVE: \"STN1\" \"\" \"STN1@9\" O 1 0 10-5-5").isEmpty());
 	}
 	@Test
 	void legacyInventoryWithoutRunLengthsIsRejected() {
 		assertTrue(parse("IHAVE: \"STN1\" \"\" \"STN1@169\" \"OWNER\" 2").isEmpty());
 	}
 	@Test
 	void otherMessageTypesAreRejected() {
 		assertTrue(parse("STATUS: \"STN1\" \"\" 0 12 0 0 0 1443210 0").isEmpty());
 	}
 }
@@ -0,0 +1,171 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.util.ArrayList;
 import java.util.List;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 class WinTestLogSyncServiceTest {
 	private static final String LOG_ID = "STN1@44510";
 	private final List<String> sentRequests = new ArrayList<>();
 	private long currentTimeMs = 1_000_000L;
 	private WinTestLogSyncService service;
 	@BeforeEach
 	void createService() {
 		sentRequests.clear();
 		service = new WinTestLogSyncService(
 				(targetStation, logId, countFrom, countTo) ->
 						sentRequests.add(targetStation + " " + logId + " " + countFrom + "-" + countTo),
 				() -> "KST4Contest",
 				() -> currentTimeMs
 		);
 	}
 	private void receiveIhave(String messageText) {
 		service.onIhaveReceived(WinTestPacket.fromMessageText(messageText));
 	}
 	private void receiveQsos(long countFrom, long countTo) {
 		for (long qsoNumber = countFrom; qsoNumber <= countTo; qsoNumber++) {
 			service.registerReceivedQso(LOG_ID, qsoNumber);
 		}
 	}
 	@Test
 	void firstBlockOfAnAnnouncedLogIsRequested() {
 		receiveIhave("IHAVE: \"STN1\" \"\" \"" + LOG_ID + "\" O 1 1 120");
 		service.tick();
 		assertEquals(List.of("STN1 " + LOG_ID + " 1-50"), sentRequests);
 		assertEquals(WinTestLogSyncService.SyncState.SYNCING, service.getState());
 	}
 	@Test
 	void answeredBlockTriggersTheNextBlockUntilTheLogIsComplete() {
 		receiveIhave("IHAVE: \"STN1\" \"\" \"" + LOG_ID + "\" O 1 1 120");
 		service.tick();
 		receiveQsos(1L, 50L);
 		service.tick();
 		receiveQsos(51L, 100L);
 		service.tick();
 		receiveQsos(101L, 120L);
 		service.tick();
 		assertEquals(
 				List.of(
 						"STN1 " + LOG_ID + " 1-50",
 						"STN1 " + LOG_ID + " 51-100",
 						"STN1 " + LOG_ID + " 101-120"
 				),
 				sentRequests);
 		assertEquals(WinTestLogSyncService.SyncState.IN_SYNC, service.getState());
 	}
 	@Test
 	void onlyMissingQsoNumbersAreRequested() {
 		receiveQsos(1L, 10L);
 		receiveQsos(21L, 30L);
 		receiveIhave("IHAVE: \"STN1\" \"\" \"" + LOG_ID + "\" O 1 1 30");
 		service.tick();
 		assertEquals(List.of("STN1 " + LOG_ID + " 11-20"), sentRequests);
 	}
 	@Test
 	void alreadyKnownQsoIsReportedAsKnown() {
 		assertTrue(service.registerReceivedQso(LOG_ID, 5L));
 		assertFalse(service.registerReceivedQso(LOG_ID, 5L));
 	}
 	@Test
 	void qsoWithoutUsableIdentityIsAlwaysTreatedAsNew() {
 		assertTrue(service.registerReceivedQso(null, 5L));
 		assertTrue(service.registerReceivedQso("", 5L));
 		assertTrue(service.registerReceivedQso(LOG_ID, 0L));
 	}
 	@Test
 	void unansweredRequestIsRepeatedAtAnotherStationHoldingTheSameLog() {
 		receiveIhave("IHAVE: \"STN1\" \"\" \"" + LOG_ID + "\" O 1 1 120");
 		receiveIhave("IHAVE: \"STN2\" \"\" \"" + LOG_ID + "\" E 1 1 120");
 		service.tick();
 		currentTimeMs += WinTestLogSyncService.REQUEST_TIMEOUT_MS;
 		service.tick();
 		assertEquals(
 				List.of("STN1 " + LOG_ID + " 1-50", "STN2 " + LOG_ID + " 1-50"),
 				sentRequests);
 	}
 	@Test
 	void silentStationIsDroppedWhenNobodyElseHoldsTheLog() {
 		receiveIhave("IHAVE: \"STN1\" \"\" \"" + LOG_ID + "\" O 1 1 120");
 		service.tick();
 		currentTimeMs += WinTestLogSyncService.REQUEST_TIMEOUT_MS;
 		service.tick();
 		currentTimeMs += WinTestLogSyncService.REQUEST_TIMEOUT_MS;
 		service.tick();
 		assertEquals(List.of("STN1 " + LOG_ID + " 1-50"), sentRequests);
 	}
 	@Test
 	void blindFallbackRequestsFixedBlocksWithoutInventory() {
 		service.onStationSeen("STN1");
 		service.registerReceivedQso(LOG_ID, 7L);
 		service.tick();
 		assertEquals(List.of(), sentRequests);
 		currentTimeMs += WinTestLogSyncService.INVENTORY_GRACE_PERIOD_MS;
 		service.tick();
 		receiveQsos(1L, 50L);
 		service.tick();
 		currentTimeMs += WinTestLogSyncService.REQUEST_TIMEOUT_MS;
 		service.tick();
 		currentTimeMs += WinTestLogSyncService.REQUEST_TIMEOUT_MS;
 		service.tick();
 		assertEquals(
 				List.of("STN1 " + LOG_ID + " 1-50", "STN1 " + LOG_ID + " 51-100"),
 				sentRequests);
 	}
 	@Test
 	void inventoryStopsTheBlindFallback() {
 		service.onStationSeen("STN1");
 		service.registerReceivedQso(LOG_ID, 7L);
 		currentTimeMs += WinTestLogSyncService.INVENTORY_GRACE_PERIOD_MS;
 		receiveIhave("IHAVE: \"STN1\" \"\" \"" + LOG_ID + "\" O 1 1 10");
 		service.tick();
 		assertEquals(List.of("STN1 " + LOG_ID + " 1-6"), sentRequests);
 	}
 	@Test
 	void ownPacketsDoNotStartASynchronization() {
 		service.onStationSeen("KST4Contest");
 		service.tick();
 		assertEquals(List.of(), sentRequests);
 		assertEquals(WinTestLogSyncService.SyncState.IDLE, service.getState());
 	}
 }
@@ -0,0 +1,85 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
 import org.junit.jupiter.api.Test;
 class WinTestNetworkAddressResolverTest {
 	private static InetAddress address(String hostAddress) throws UnknownHostException {
 		return InetAddress.getByName(hostAddress);
 	}
 	@Test
 	void stationNetworkWinsOverConfiguredAddress() throws UnknownHostException {
 		WinTestNetworkAddressResolver resolver = new WinTestNetworkAddressResolver(
 				remoteAddress -> {
 					try {
 						return address("192.168.122.255");
 					} catch (UnknownHostException exception) {
 						return null;
 					}
 				});
 		resolver.rememberStationAddress(address("192.168.122.1"));
 		assertEquals(address("192.168.122.255"),
 				resolver.resolveBroadcastAddress("192.168.101.255"));
 	}
 	@Test
 	void configuredAddressIsUsedWhenNoLocalInterfaceServesTheStation()
 			throws UnknownHostException {
 		WinTestNetworkAddressResolver resolver =
 				new WinTestNetworkAddressResolver(remoteAddress -> null);
 		resolver.rememberStationAddress(address("10.9.8.7"));
 		assertEquals(address("192.168.101.255"),
 				resolver.resolveBroadcastAddress("192.168.101.255"));
 	}
 	@Test
 	void limitedBroadcastIsUsedWithoutStationAndWithoutSetting()
 			throws UnknownHostException {
 		WinTestNetworkAddressResolver resolver =
 				new WinTestNetworkAddressResolver(remoteAddress -> null);
 		assertEquals(address("255.255.255.255"), resolver.resolveBroadcastAddress("  "));
 		assertEquals(address("255.255.255.255"), resolver.resolveBroadcastAddress(null));
 	}
 	@Test
 	void loopbackAndWildcardSourcesAreIgnored() throws UnknownHostException {
 		WinTestNetworkAddressResolver resolver = new WinTestNetworkAddressResolver(
 				remoteAddress -> {
 					throw new IllegalStateException("must not be asked for " + remoteAddress);
 				});
 		resolver.rememberStationAddress(address("127.0.0.1"));
 		resolver.rememberStationAddress(address("0.0.0.0"));
 		resolver.rememberStationAddress(null);
 		assertEquals(address("192.168.101.255"),
 				resolver.resolveBroadcastAddress("192.168.101.255"));
 	}
 	@Test
 	void subnetComparisonHonoursThePrefixLength() throws UnknownHostException {
 		assertTrue(WinTestNetworkAddressResolver.isInSameSubnet(
 				address("192.168.122.1"), address("192.168.122.203"), 24));
 		assertFalse(WinTestNetworkAddressResolver.isInSameSubnet(
 				address("192.168.101.5"), address("192.168.122.1"), 24));
 		assertTrue(WinTestNetworkAddressResolver.isInSameSubnet(
 				address("172.19.0.1"), address("172.19.240.9"), 16));
 		assertFalse(WinTestNetworkAddressResolver.isInSameSubnet(
 				address("10.244.22.73"), address("10.244.23.1"), 24));
 		assertTrue(WinTestNetworkAddressResolver.isInSameSubnet(
 				address("10.244.22.73"), address("10.244.23.1"), 16));
 	}
 }
@@ -0,0 +1,111 @@
 package kst4contest.controller;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.nio.charset.StandardCharsets;
 import java.util.List;
 import org.junit.jupiter.api.Test;
 class WinTestPacketTest {
 	private static final String ADDQSO_MESSAGE =
 			"ADDQSO: \"STN1\" \"\" \"STN1\" 1762202297 1440000 0 12 0 0 0 2 2 "
 					+ "\"DM2RN\" \"599\" \"599001\" \"JO51UM\" \"\" \"\" 0 \"\" \"\" \"\" 44510";
 	/**
 	 * Builds a datagram exactly like Win-Test does: message text, checksum byte
 	 * replacing the placeholder, NUL terminator.
 	 */
 	private static byte[] toDatagram(String messageText) {
 		byte[] datagram = (messageText + "?\0").getBytes(StandardCharsets.US_ASCII);
 		int sum = 0;
 		for (int index = 0; index < datagram.length - 2; index++) {
 			sum += datagram[index] & 0xFF;
 		}
 		datagram[datagram.length - 2] = (byte) ((sum | 0x80) & 0xFF);
 		return datagram;
 	}
 	@Test
 	void checksumByteAndTerminatorAreRemovedFromMessageText() {
 		byte[] datagram = toDatagram(ADDQSO_MESSAGE);
 		WinTestPacket packet = WinTestPacket.fromDatagram(datagram, datagram.length);
 		assertEquals(ADDQSO_MESSAGE, packet.getMessageText());
 		assertTrue(packet.isChecksumPresent());
 		assertTrue(packet.isChecksumValid());
 	}
 	@Test
 	void trailingLogIdStaysReadableAfterFramingIsResolved() {
 		byte[] datagram = toDatagram(ADDQSO_MESSAGE);
 		WinTestPacket packet = WinTestPacket.fromDatagram(datagram, datagram.length);
 		List<String> packetFields = WinTestPacket.tokenize(packet.getMessageText());
 		assertEquals("STN1@44510",
 				ReadUDPByWintestThread.extractLogIdFromWinTestAddQso(packetFields));
 		assertEquals(2L,
 				ReadUDPByWintestThread.extractQsoNumberFromWinTestAddQso(packetFields));
 	}
 	@Test
 	void manipulatedChecksumIsDetected() {
 		byte[] datagram = toDatagram(ADDQSO_MESSAGE);
 		datagram[datagram.length - 2] = (byte) 0xFF;
 		WinTestPacket packet = WinTestPacket.fromDatagram(datagram, datagram.length);
 		assertTrue(packet.isChecksumPresent());
 		assertFalse(packet.isChecksumValid());
 	}
 	@Test
 	void sourceAndDestinationAreSeparatedFromPayload() {
 		byte[] datagram = toDatagram(
 				"IHAVE: \"STN1\" \"KST4Contest\" \"STN1@44510\" O 1 1 120");
 		WinTestPacket packet = WinTestPacket.fromDatagram(datagram, datagram.length);
 		assertEquals("IHAVE", packet.getMessageType());
 		assertEquals("STN1", packet.getSource());
 		assertEquals("KST4Contest", packet.getDestination());
 		assertEquals(List.of("STN1@44510", "O", "1", "1", "120"), packet.getDataTokens());
 		assertTrue(packet.isAddressedTo("KST4Contest"));
 		assertFalse(packet.isAddressedTo("STN2"));
 	}
 	@Test
 	void emptyQuotedFieldsKeepFieldPositions() {
 		List<String> packetFields = WinTestPacket.tokenize(ADDQSO_MESSAGE);
 		assertEquals("ADDQSO:", packetFields.get(0));
 		assertEquals("STN1", packetFields.get(1));
 		assertEquals("", packetFields.get(2));
 		assertEquals("12", packetFields.get(7));
 		assertEquals("DM2RN", packetFields.get(13));
 		assertEquals(24, packetFields.size());
 	}
 	@Test
 	void messageWithoutWinTestFramingIsRejected() {
 		assertNull(WinTestPacket.fromMessageText("no win-test message"));
 		assertNull(WinTestPacket.fromDatagram(new byte[] { 0 }, 1));
 		assertNull(WinTestPacket.fromDatagram(null, 0));
 	}
 	@Test
 	void broadcastPacketIsAcceptedForEveryStationName() {
 		WinTestPacket packet = WinTestPacket.fromMessageText(ADDQSO_MESSAGE);
 		assertTrue(packet.isAddressedTo("KST4Contest"));
 		assertFalse(packet.isChecksumPresent());
 	}
 }
@@ -0,0 +1,134 @@
 package kst4contest.test;
 import kst4contest.model.ChatPreferences;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 class ChatPreferencesLayoutPersistenceTest {
    @TempDir
    Path temporaryDirectory;
    @Test
    void columnWidthsSurviveFullXmlRoundTripAndLayoutsStayIndependent() {
        Path preferencesFile = temporaryDirectory.resolve("preferences.xml");
        ChatPreferences written = preferencesAt(preferencesFile);
        written.setTableColumnWidth("dx-cluster-main", "message", 410.5);
        written.setTableColumnWidth("dx-cluster-monitor", "message", 275.25);
        assertTrue(written.writePreferencesToXmlFile());
        ChatPreferences restored = preferencesAt(preferencesFile);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertEquals(410.5,
                restored.getTableColumnWidth("dx-cluster-main", "message").orElseThrow());
        assertEquals(275.25,
                restored.getTableColumnWidth("dx-cluster-monitor", "message").orElseThrow());
        assertFalse(restored.getTableColumnWidth("qso-other-main", "message").isPresent());
    }
    @Test
    void legacyXmlWithoutColumnWidthsKeepsWidthsAbsent() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("legacy.xml");
        Files.writeString(preferencesFile, """
                <?xml version="1.0" encoding="UTF-8"?>
                <praktiKST>
                    <configVersion>5</configVersion>
                    <guiOptions>
                        <GUIscn_ChatwindowMainSceneSizeHW>768;1234</GUIscn_ChatwindowMainSceneSizeHW>
                    </guiOptions>
                </praktiKST>
                """);
        ChatPreferences restored = preferencesAt(preferencesFile);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertFalse(restored.getTableColumnWidth("public-messages", "time").isPresent());
    }
    @Test
    void invalidColumnWidthEntriesAreIgnored() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("invalid.xml");
        Files.writeString(preferencesFile, """
                <?xml version="1.0" encoding="UTF-8"?>
                <praktiKST>
                    <configVersion>6</configVersion>
                    <guiOptions>
                        <tableColumnWidth tableId="public-messages" columnId="callsign" pixels="NaN"/>
                        <tableColumnWidth tableId="public-messages" columnId="name" pixels="-20"/>
                        <tableColumnWidth tableId="public-messages" columnId="category" pixels="999999"/>
                        <tableColumnWidth tableId="public-messages" columnId="time" pixels="88.5"/>
                    </guiOptions>
                </praktiKST>
                """);
        ChatPreferences restored = preferencesAt(preferencesFile);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertFalse(restored.getTableColumnWidth("public-messages", "callsign").isPresent());
        assertFalse(restored.getTableColumnWidth("public-messages", "name").isPresent());
        assertFalse(restored.getTableColumnWidth("public-messages", "category").isPresent());
        assertEquals(88.5,
                restored.getTableColumnWidth("public-messages", "time").orElseThrow());
    }
    @Test
    void selectiveLayoutWritePreservesDiskSettingsAndUnknownXml() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("selective.xml");
        Files.writeString(preferencesFile, """
                <?xml version="1.0" encoding="UTF-8"?>
                <praktiKST>
                    <configVersion>5</configVersion>
                    <station>
                        <LoginCallSign>SAVED-CALL</LoginCallSign>
                    </station>
                    <futureExtension mode="keep-me"><value>42</value></futureExtension>
                    <guiOptions>
                        <GUIscn_ChatwindowMainSceneSizeHW>700;1100</GUIscn_ChatwindowMainSceneSizeHW>
                        <futureLayoutValue>untouched</futureLayoutValue>
                    </guiOptions>
                </praktiKST>
                """);
        ChatPreferences preferences = preferencesAt(preferencesFile);
        assertTrue(preferences.readPreferencesFromXmlFile());
        preferences.setStn_loginCallSign("UNSAVED-CALL");
        preferences.getGUIscn_ChatwindowMainSceneSizeHW()[0] = 812;
        preferences.getGUIscn_ChatwindowMainSceneSizeHW()[1] = 1340;
        preferences.setGUIstationMapClusteringEnabled(false);
        preferences.setTableColumnWidth("qso-other-monitor", "call-tx", 123.75);
        assertTrue(preferences.writeLayoutPreferencesToXmlFile());
        String writtenXml = Files.readString(preferencesFile);
        assertTrue(writtenXml.contains("<LoginCallSign>SAVED-CALL</LoginCallSign>"));
        assertFalse(writtenXml.contains("UNSAVED-CALL"));
        assertTrue(writtenXml.contains("<futureExtension mode=\"keep-me\">"));
        assertTrue(writtenXml.contains("<futureLayoutValue>untouched</futureLayoutValue>"));
        assertTrue(writtenXml.contains("<configVersion>7</configVersion>"));
        assertTrue(writtenXml.contains("<GUIscn_ChatwindowMainSceneSizeHW>812.0;1340.0"));
        assertTrue(writtenXml.contains("<GUIstationMapClusteringEnabled>false"
                + "</GUIstationMapClusteringEnabled>"));
        ChatPreferences restored = preferencesAt(preferencesFile);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertEquals("SAVED-CALL", restored.getStn_loginCallSign());
        assertFalse(restored.isGUIstationMapClusteringEnabled());
        assertEquals(123.75,
                restored.getTableColumnWidth("qso-other-monitor", "call-tx").orElseThrow());
    }
    private ChatPreferences preferencesAt(Path preferencesFile) {
        ChatPreferences preferences = new ChatPreferences();
        preferences.setStoreAndRestorePreferencesFileName(preferencesFile.toString());
        return preferences;
    }
 }
@@ -0,0 +1,101 @@
 package kst4contest.test;
 import kst4contest.model.ChatPreferences;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 class ChatPreferencesStationMapClusteringTest {
    @TempDir
    Path temporaryDirectory;
    @Test
    void clusteringIsEnabledByDefault() {
        assertTrue(new ChatPreferences().isGUIstationMapClusteringEnabled());
    }
    @Test
    void disabledClusteringSurvivesFullXmlRoundTrip() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("preferences.xml");
        ChatPreferences written = preferencesAt(preferencesFile);
        written.setGUIstationMapClusteringEnabled(false);
        assertTrue(written.writePreferencesToXmlFile());
        String writtenXml = Files.readString(preferencesFile);
        assertTrue(writtenXml.contains("<configVersion>7</configVersion>"));
        assertTrue(writtenXml.contains("<GUIstationMapClusteringEnabled>false"
                + "</GUIstationMapClusteringEnabled>"));
        ChatPreferences restored = preferencesAt(preferencesFile);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertFalse(restored.isGUIstationMapClusteringEnabled());
    }
    @Test
    void versionSixWithoutClusteringSettingKeepsClusteringEnabled() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("version-six.xml");
        Files.writeString(preferencesFile, """
                <?xml version="1.0" encoding="UTF-8"?>
                <praktiKST>
                    <configVersion>6</configVersion>
                    <guiOptions>
                        <GUIstationMapStageSceneSizeHW>1000.0;800.0</GUIstationMapStageSceneSizeHW>
                    </guiOptions>
                </praktiKST>
                """);
        ChatPreferences restored = preferencesAt(preferencesFile);
        restored.setGUIstationMapClusteringEnabled(false);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertTrue(restored.isGUIstationMapClusteringEnabled());
    }
    @Test
    void missingGuiOptionsKeepsClusteringEnabled() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("missing.xml");
        Files.writeString(preferencesFile, """
                <?xml version="1.0" encoding="UTF-8"?>
                <praktiKST>
                    <configVersion>6</configVersion>
                </praktiKST>
                """);
        ChatPreferences restored = preferencesAt(preferencesFile);
        restored.setGUIstationMapClusteringEnabled(false);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertTrue(restored.isGUIstationMapClusteringEnabled());
    }
    @Test
    void invalidClusteringValueKeepsClusteringEnabled() throws IOException {
        Path preferencesFile = temporaryDirectory.resolve("invalid.xml");
        Files.writeString(preferencesFile, """
                <?xml version="1.0" encoding="UTF-8"?>
                <praktiKST>
                    <configVersion>7</configVersion>
                    <guiOptions>
                        <GUIstationMapClusteringEnabled>sometimes</GUIstationMapClusteringEnabled>
                    </guiOptions>
                </praktiKST>
                """);
        ChatPreferences restored = preferencesAt(preferencesFile);
        restored.setGUIstationMapClusteringEnabled(false);
        assertTrue(restored.readPreferencesFromXmlFile());
        assertTrue(restored.isGUIstationMapClusteringEnabled());
    }
    private ChatPreferences preferencesAt(Path preferencesFile) {
        ChatPreferences preferences = new ChatPreferences();
        preferences.setStoreAndRestorePreferencesFileName(preferencesFile.toString());
        return preferences;
    }
 }
@@ -0,0 +1,86 @@
 package kst4contest.test;
 import kst4contest.logic.FrequencyTextParser;
 import kst4contest.model.Band;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 import java.util.List;
 import java.util.stream.Stream;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 class FrequencyTextParserRegressionTest {
    @ParameterizedTest
    @MethodSource("compactFrequenciesAcrossSupportedBands")
    void detectsCompactFrequenciesAcrossSupportedBands(
            String compactFrequency,
            Band expectedBand,
            double expectedFrequencyMHz
    ) {
        FrequencyTextParser.DetectedFrequency detected =
                FrequencyTextParser.findExplicitFrequencies(
                        "QRV " + compactFrequency
                ).get(0);
        assertEquals(expectedBand, detected.getBand());
        assertEquals(
                expectedFrequencyMHz,
                detected.getFrequencyMHz(),
                0.000_001
        );
    }
    @Test
    void detectsReferenceFrequencyInStationName() {
        List<FrequencyTextParser.DetectedFrequency> detected =
                FrequencyTextParser.findExplicitFrequencies(
                        "Operator 144307"
                );
        assertEquals(1, detected.size());
        assertEquals(Band.B_144, detected.get(0).getBand());
        assertEquals(
                144.307,
                detected.get(0).getFrequencyMHz(),
                0.000_001
        );
    }
    @Test
    void rejectsCompactValuesOutsideSupportedBandRanges() {
        assertTrue(
                FrequencyTextParser.findExplicitFrequencies(
                        "146100 434100 99999"
                ).isEmpty()
        );
    }
    @Test
    void keepsBareThreeDigitValuesOutOfCompleteFrequencyDetection() {
        assertTrue(
                FrequencyTextParser.findExplicitFrequencies(
                        "210 599 144"
                ).isEmpty()
        );
    }
    private static Stream<Arguments> compactFrequenciesAcrossSupportedBands() {
        return Stream.of(
                Arguments.of("50278", Band.B_50, 50.278),
                Arguments.of("70200", Band.B_70, 70.200),
                Arguments.of("145500", Band.B_144, 145.500),
                Arguments.of("432100", Band.B_432, 432.100),
                Arguments.of("1296100", Band.B_1296, 1296.100),
                Arguments.of("2320100", Band.B_2320, 2320.100),
                Arguments.of("3400100", Band.B_3400, 3400.100),
                Arguments.of("5760100", Band.B_5760, 5760.100),
                Arguments.of("10368100", Band.B_10G, 10368.100),
                Arguments.of("24048100", Band.B_24G, 24048.100)
        );
    }
 }
@@ -0,0 +1,31 @@
 package kst4contest.test;
 import kst4contest.view.map.MapHtmlResources;
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 class MapHtmlResourcesContractTest {
    @Test
    void stationClusteringCanBeToggledWithoutReplacingStationData() {
        String html = MapHtmlResources.createStationMapHtml(12345);
        assertTrue(html.contains("let stationClusteringEnabled = true;"));
        assertTrue(html.contains("if (!stationClusteringEnabled"));
        assertTrue(html.contains("|| Number(map.getZoom()) >= KST_CLUSTER_DISABLE_ZOOM)"));
        assertTrue(html.contains("function setStationClusteringEnabled(enabled)"));
        int setterStart = html.indexOf("function setStationClusteringEnabled(enabled)");
        int setterEnd = html.indexOf('}', setterStart);
        String setterBody = html.substring(setterStart, setterEnd);
        int stateUpdate = setterBody.indexOf("stationClusteringEnabled = Boolean(enabled);");
        int markerRender = setterBody.indexOf("renderStationMarkers();");
        assertTrue(stateUpdate >= 0);
        assertTrue(markerRender > stateUpdate);
        assertFalse(setterBody.contains("stationData ="));
        assertTrue(html.contains("setStationClusteringEnabled: setStationClusteringEnabled"));
    }
 }
@@ -1,24 +1,48 @@
 package kst4contest.test;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Set;
 import kst4contest.controller.UCXLogFileToHashsetParser;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.io.TempDir;
-public class TestUCXLogFileToHashsetParser {
+class TestUCXLogFileToHashsetParser {
 	@TempDir
 	Path temporaryDirectory;
 	@Test
-	public static void main(String[] args) {
+	void parsesUniqueWorkedBaseCallsignsWithFixedPattern() throws IOException {
-		// TODO Auto-generated method stub
+		Path logFile = temporaryDirectory.resolve("contest.log");
 		Files.writeString(logFile, String.join(System.lineSeparator(),
 				"QSO 001 S53CC 144 MHz",
 				"QSO 002 9A0BB-70 432 MHz",
 				"QSO 003 s53cc repeated",
 				"no station here"));
-		UCXLogFileToHashsetParser testTheParser = new UCXLogFileToHashsetParser("C:\\UcxLog\\Logs\\DO5AMF\\DVU322_I.UCX");
+		Set<String> result = new UCXLogFileToHashsetParser(logFile.toString()).parse();
-		try {
+
-			testTheParser.parse();
+		assertEquals(Set.of("S53CC", "9A0BB"), result);
 		} catch (IOException e) {
 			// TODO Auto-generated catch block
 			e.printStackTrace();
 		}
 	}
 	@Test
 	void closesFileAfterEveryParsePass() throws IOException {
 		Path logFile = temporaryDirectory.resolve("replaceable.log");
 		Files.writeString(logFile, "QSO DL1ABC");
 		UCXLogFileToHashsetParser parser = new UCXLogFileToHashsetParser(logFile.toString());
 		assertEquals(Set.of("DL1ABC"), parser.parse());
 		Path replacement = temporaryDirectory.resolve("replacement.log");
 		Files.move(logFile, replacement);
 		assertFalse(Files.exists(logFile));
 		assertTrue(Files.exists(replacement));
 	}
 }
@@ -0,0 +1,19 @@
 package kst4contest.view;
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 class TableLayoutManagerTest {
    @Test
    void contentWidthUsesCompactPadding() {
        assertEquals(116.0, TableLayoutManager.calculateInitialContentWidth(100.0, 24.0, 200.0));
    }
    @Test
    void contentWidthStillHonorsMinimumAndMaximum() {
        assertEquals(24.0, TableLayoutManager.calculateInitialContentWidth(0.0, 24.0, 200.0));
        assertEquals(200.0, TableLayoutManager.calculateInitialContentWidth(250.0, 24.0, 200.0));
    }
 }
@@ -0,0 +1,32 @@
 package kst4contest.view;
 import org.junit.jupiter.api.Test;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 class TruncatedTextTableCellTest {
    @Test
    void plainFullTextTooltipIsShownOnlyForClippedText() {
        assertNull(TruncatedTextTooltipSupport.buildTooltipText("complete", false, null));
        assertEquals("complete",
                TruncatedTextTooltipSupport.buildTooltipText("complete", true, null));
    }
    @Test
    void functionalTooltipRemainsAndCombinesWithClippedValue() {
        assertEquals("Worked status",
                TruncatedTextTooltipSupport.buildTooltipText("X", false, "Worked status"));
        assertEquals("Long value\n\nWorked status",
                TruncatedTextTooltipSupport.buildTooltipText("Long value", true, "Worked status"));
    }
    @Test
    void clippingComparisonUsesAvailableRenderedWidth() {
        assertFalse(TruncatedTextTooltipSupport.isTextClipped(100, 100));
        assertTrue(TruncatedTextTooltipSupport.isTextClipped(102, 100));
    }
 }
@@ -2390,4 +2390,16 @@ DK0MM;Jens/Alex;JN49IU;StringProperty [value: 432.305]; wkd true; wkd144 false;
 SM6VTZ;Chris .135;JO58UJ;StringProperty [value: 144.135]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; 2: 144/432 MHz
 SM6VTZ;Chris .135;JO58UJ;StringProperty [value: 432.135]; wkd true; wkd144 true; wkd432true; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; 2: 144/432 MHz
 LA0BY;Stefan @ hilltop;JO59IX;StringProperty [value: 144.062]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; 2: 144/432 MHz
-LA0BY;null;JO49ML;StringProperty [value: null]; wkd true; wkd144 false; wkd432true; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
+LA0BY;null;JO49ML;StringProperty [value: null]; wkd true; wkd144 false; wkd432true; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 OV3T;null;JO46CM;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 DK0TR;null;JO40QL;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 DD0VF;null;JO61TB;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 F5DYD;null;JN03KG;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 F6DRO;null;JN03TJ;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 F4VRB;null;IN98PT;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 DK0TR;null;JO40QL;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 DD0VF;null;JO61TB;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 F5DYD;null;JN03KG;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 F6DRO;null;JN03TJ;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 F4VRB;null;IN98PT;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
 DK5KMA;null;JO50IK;StringProperty [value: null]; wkd true; wkd144 true; wkd432false; wkd1240false; wkd2300false; wkd3400false; wkd5600false; wkd10Gfalse ; null
@@ -7,93 +7,93 @@
        <date>2026-07-01</date>
        <description>Map view and path calculations</description>
        <added>
-Band and Frequency Detection per Chatmember, Band alert, Win-Test SKED Push via UDP,
+Band and frequency detection per chat member, band alert, Win-Test sked push via UDP,
-Win-Test Broadcast Defaults and SKed Workflow, Chat History at Startup, Station Map / Map View
+Win-Test broadcast defaults and sked workflow, chat history at startup, station map / map view,
-Local Leaflet /-TileProxy Backend, Maidenhead /-Grid Overlay, Path calculation, path profile,
+local Leaflet / tile-proxy backend, Maidenhead / grid overlay, path calculation, path profile,
-Reachability filters, NAC filters (grid sqaure marking)
+reachability filters, NAC filters (grid-square marking)
        </added>
        <changed>
-button housing, it works now on smaller screens / plus: detecting maximum screen size
+Button layout now works on smaller screens; the maximum screen size is also detected
        </changed>
        <fixed>
-9A2HM reported that 23cm qsos with N1MM are not marked correctly, ist fixed
+9A2HM reported that 23 cm QSOs with N1MM were not marked correctly; this is fixed
        </fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.40</changedVersionNumber>
        <date>2026-02-16</date>
-        <description>Much changes and fixes</description>
+        <description>Many changes and fixes</description>
        <added>
- win-test support (not deactivable yet, beta)
+- Win-Test support (cannot be disabled yet, beta)
- QSO sniffer which filters changable callsigns lists messages to your pm window
+- QSO sniffer which filters messages from configurable callsign lists into the private-message window
- Chatmember Score system. Each chatmember gets a score depending to antenna direction, activity time,
+- Chat-member score system. Each chat member receives a score based on antenna direction, activity time,
-  activity msgcount, positive signals, active bands, active frequencies, his sked direction (degrees),
+  activity message count, positive signals, active bands, active frequencies, sked direction (degrees),
-  self handed rate, sked-made-rate and some others
+  self-handed rate, sked-made rate and other factors
- Chatmember Band and frequency recognition: now we list all active bands of each other chatmember
+- Chat-member band and frequency recognition: all active bands of each other chat member are now listed
 - Band alert for logged stations
- Sked reminder ALERT with automatic messages in 2+1 / 5+2+1 / 10+5+2+1 minutes
+- Sked reminder alert with automatic messages at 2+1 / 5+2+1 / 10+5+2+1 minutes
 - PSTRotator interface
- AirPlane Timeline
+- Airplane timeline
- Skedfail button in furtherinfo panel
+- Sked-fail button in the further-information panel
- Wintest logsynch interface can now be activated and deactivated in the preferences
+- Win-Test log-synchronisation interface can now be enabled and disabled in Preferences
- load chat history on startup
+- Load chat history at startup
        </added>
        <changed>
- added save option: ServerDNS / Port
+- Added saved options for server DNS and port
- added save option: activate/deactivate pstRotator interface
+- Added saved option to enable or disable the PSTRotator interface
- added save option: activate/deactivate wintest interface
+- Added saved option to enable or disable the Win-Test interface
- added save option: callsign sniffer
+- Added saved option for the callsign sniffer
- added save option: boolean GUI_darkModeActiveByDefault = false
+- Added saved option: boolean GUI_darkModeActiveByDefault = false
- added AP notes at the internal DX cluster spots
+- Added AP notes to internal DX cluster spots
- Generic Autoanswer fires maximum once in 45 seconds per rx callsign
+- Generic auto-answer fires at most once every 45 seconds per receiving callsign
        </changed>
        <fixed>
- Userlist sort automatically on new member signon
+- User list is sorted automatically when a new member signs on
- Posonpill-messages now kills only exactly one Client instance (bugreport 9A2HM)
+- Poison-pill messages now terminate exactly one client instance (bug report 9A2HM)
- Crash of wtkst by disconnection of kst4Contest
+- wtKST crash when KST4Contest disconnects
- wtKST crashes when kst4contest is running (many reporters)
+- wtKST crash while KST4Contest is running (many reporters)
- wintest: logged per band excludes pre worked band (bugreport SM6VTZ)
+- Win-Test: logging per band excludes previously worked bands (bug report SM6VTZ)
- PSTRotator SOCKET Close on DISCONNECT BUTTON works now
+- The PSTRotator socket now closes when the disconnect button is used
- AirScout Map had not been updated (bugreport SM0RJV)
+- The AirScout map was not updated (bug report SM0RJV)
- QTFDefault had been not saved correctly (bugreport SM0RJV)
+- QTFDefault was not saved correctly (bug report SM0RJV)
- Show path in AS button worked only with fixed server Strings (bugreport 9A2HM)
+- The Show Path in AirScout button worked only with fixed server strings (bug report 9A2HM)
- Version number had been displayed wrong
+- The version number was displayed incorrectly
- suffixes like /p, -2, etc. problem now fixed everywhere
+- Problems with suffixes such as /P and -2 are now fixed throughout the application
- Dark mode: passing for qrg fields fix
+- Dark mode: padding of QRG fields fixed
        </fixed>
        <removed>
- No more date display. Not needed. Saving space, only time is important
+- Date display removed to save space; only the time is relevant
        </removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.31</changedVersionNumber>
        <date>2025-12-13</date>
-        <description>Much changes and a hotfix</description>
+        <description>Many changes and a hotfix</description>
        <added>
- win-test support (not deactivable yet, beta)
+- Win-Test support (cannot be disabled yet, beta)
- pstRotator support (not deactivable yet, beta)
+- PSTRotator support (cannot be disabled yet, beta)
- airScout fix (calculations depends to cpu load now)
+- AirScout fix (calculations now depend on CPU load)
 - QSO sniffer
        </added>
        <changed>
 - DNS from www.on4kst.info to www.on4kst.org (hotfix, now configurable in preferences)
        </changed>
        <fixed>
- Endless loop in error case lets freeze the client
+- An endless loop in an error case froze the client
- PSTRotator SOCKET Close on DISCONNECT BUTTON
+- PSTRotator socket closes when the disconnect button is used
- Dark mode: passing for qrg fields fix
+- Dark mode: padding of QRG fields fixed
        </fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.266</changedVersionNumber>
        <date>2025-10-03</date>
-        <description>Airscout interface did not work with multi-signons</description>
+        <description>AirScout interface did not work with multiple sign-ons</description>
        <added>nothing</added>
        <changed>nothing</changed>
        <fixed>
-Fixed by using raw callsign (without -2 suffix etc.) when communicating with AirScout.
+Fixed by using the raw callsign (without a -2 suffix, etc.) when communicating with AirScout.
 Thank you very much for testing this, Kreso 9A2HM!
        </fixed>
        <removed></removed>
@@ -101,36 +101,36 @@ Thank you very much for testing this, Kreso 9A2HM!
    <changeLog>
        <changedVersionNumber>1.265</changedVersionNumber>
        <date>2025-09-28</date>
-        <description>Direction buttons stay now colored, if activated</description>
+        <description>Direction buttons now stay coloured when activated</description>
        <added>nothing</added>
        <changed>nothing</changed>
-        <fixed>The buttons stay now colored, if activated</fixed>
+        <fixed>The buttons now stay coloured when activated</fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.264</changedVersionNumber>
        <date>2025-08-02</date>
-        <description>Changed the callsign recognition pattern for Simplelogfile</description>
+        <description>Changed the callsign-recognition pattern for Simplelogfile</description>
        <added>nothing</added>
        <changed>nothing</changed>
        <fixed>
-Callsigns like S53CC, S51A etc. are now correctly marked as worked in SimpleLogFile.txt.
+Callsigns such as S53CC and S51A are now correctly marked as worked in SimpleLogFile.txt.
-(bugreport Boris, S53CC)
+(bug report by Boris, S53CC)
        </fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.263</changedVersionNumber>
        <date>2025-06-08</date>
-        <description>Airscout communication and Loginname</description>
+        <description>AirScout communication and login name</description>
        <added>nothing</added>
        <changed>
-Only entries with QRB lower than max-QRB are sent to AirScout in 60s intervals (was 12s for all).
+Only entries with a QRB below the maximum QRB are sent to AirScout at 60-second intervals (previously 12 seconds for all entries).
        </changed>
        <fixed>
- AS communication message count hugely reduced
+- AirScout communication message count greatly reduced
- Name in chat is now saveable
+- Name in chat can now be saved
- Fixed AS client name (was hard-wired to "KST")
+- AirScout client name fixed (was hard-coded as "KST")
 73 / DO5AMF
        </fixed>
        <removed></removed>
@@ -138,39 +138,39 @@ Only entries with QRB lower than max-QRB are sent to AirScout in 60s intervals (
    <changeLog>
        <changedVersionNumber>1.262</changedVersionNumber>
        <date>2025-05-21</date>
-        <description>Freezes caused by getting messages before user login should be fixed now</description>
+        <description>Freezes caused by receiving messages before user login should now be fixed</description>
        <added>nothing</added>
        <changed>nothing</changed>
        <fixed>
-ON4KST delivers messages of stations not yet logged in. That caused a freeze at the message
+ON4KST delivers messages from stations which are not yet logged in. This caused the message-processing
-processing engine which is now fixed.
+engine to freeze and is now fixed.
        </fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.26</changedVersionNumber>
        <date>2025-05</date>
-        <description>Login to multiple Channels via single signon / spend some colors</description>
+        <description>Login to multiple channels via single sign-on / added some colour</description>
        <added>
-1. UI: Dark mode. Switch in "Window -> use dark mode"
+1. UI: Dark mode. Switch under "Window -> use dark mode"
-2. Usage of two Chatcategories at the same time
+2. Use of two chat categories at the same time
-3. opposite station multi-callsign login-tagging
+3. Multi-callsign login tagging for remote stations
 73 / DO5AMF
        </added>
        <changed>
- Coloring mechanic of the software. Modify colors via css by yourself...
+- Colour handling in the application. Colours can be modified through CSS.
        </changed>
        <fixed>
- Station tagging fixed completely
+- Station tagging completely fixed
        </fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>1.251</changedVersionNumber>
        <date>2025-02</date>
-        <description>BUGFIX of 1.25, tnx Steve Clements!</description>
+        <description>Bug fix for 1.25, thanks to Steve Clements!</description>
        <added>
- Steve spotted a problem in udp broadcast spot info reading, its now fixed!
+- Steve found a problem when reading UDP broadcast spot information; it is now fixed.
 73 / DO5AMF
        </added>
        <changed></changed>
@@ -182,13 +182,13 @@ processing engine which is now fixed.
        <date>2025-02</date>
        <description>Wishlist-time</description>
        <added>
- New configuration Tab: Messagehandling (auto-answering, CQ qrg auto-answer)
+- New configuration tab: Message handling (automatic replies, CQ QRG automatic reply)
- Coloured lines: new pm rows appear in red, fade rainbow-like to white over 30s (tnx Gianluca)
+- Coloured lines: new private-message rows appear in red and fade through a rainbow to white over 30 seconds (thanks to Gianluca)
 73 / DO5AMF
        </added>
        <changed></changed>
        <fixed>
- Users with suffixes like "-2 and -70" are now correctly marked as worked
+- Users with suffixes such as -2 and -70 are now correctly marked as worked
        </fixed>
        <removed></removed>
    </changeLog>
@@ -197,8 +197,8 @@ processing engine which is now fixed.
        <date>2024-11</date>
        <description>Wishlist-time</description>
        <added>
- Button to show qrz.com profile of a selected station
+- Button to show the qrz.com profile of a selected station
- Button to show qrzcq.com profile of a selected station
+- Button to show the qrzcq.com profile of a selected station
        </added>
        <changed></changed>
        <fixed></fixed>
@@ -207,10 +207,10 @@ processing engine which is now fixed.
    <changeLog>
        <changedVersionNumber>1.23</changedVersionNumber>
        <date>2024-10</date>
-        <description>DXCluster Server is now implemented</description>
+        <description>DX cluster server is now implemented</description>
        <added>
- DXCluster Server (tnx OMAAO): KST4Contest now provides a DXCluster server to feed
+- DX cluster server (thanks to OMAAO): KST4Contest now provides a DX cluster server which sends
-  your log client with station-reachable warnings.
+  reachable-station warnings to the logging client.
        </added>
        <changed></changed>
        <fixed></fixed>
@@ -219,13 +219,13 @@ processing engine which is now fixed.
    <changeLog>
        <changedVersionNumber>1.22</changedVersionNumber>
        <date>2024-05</date>
-        <description>Increase usability, fixed AS button</description>
+        <description>Improved usability and fixed AirScout button</description>
        <added>- Variables (tnx OMAAO): MYLOCATORSHORT, MYQRGSHORT, QRZNAME</added>
-        <changed>- Sendtext-field focus on callsign click</changed>
+        <changed>- Message-input focus when clicking a callsign</changed>
        <fixed>
- Worked-station-filter (tnx Gianluca): filter is now live
+- Worked-station filter (thanks to Gianluca): the filter is now live
- Chatters list sorting by QRB (tnx Alessandro): fixed to numeric sort
+- User-list sorting by QRB (thanks to Alessandro): changed to numeric sorting
- Airscout showpath button now maximizes AS and shows the path
+- AirScout Show Path button now maximises AirScout and displays the path
        </fixed>
        <removed></removed>
    </changeLog>
@@ -235,8 +235,8 @@ processing engine which is now fixed.
        <description>Increase usability</description>
        <added></added>
        <changed>
- Window sizes and divider positions are now stored and restored on next startup
+- Window sizes and divider positions are now stored and restored at the next startup
- Filters section is now a flowpane for lower resolutions
+- The filters section now uses a FlowPane for lower resolutions
        </changed>
        <fixed></fixed>
        <removed></removed>
@@ -248,7 +248,7 @@ processing engine which is now fixed.
        <added>
 - Selectable bands
 - Unworkable tags for each callsign per band
- QTF-Arrow on the "show path in AS" button
+- QTF arrow on the "Show Path in AirScout" button
        </added>
        <changed></changed>
        <fixed></fixed>
@@ -259,15 +259,15 @@ processing engine which is now fixed.
        <date>2024-03</date>
        <description>Increased workflow</description>
        <added>
- Reachable warning function
+- Reachable-station warning function
 - Variables FIRSTAP and SECONDAP for predefined texts
 - Marking new connected stations (bold) and away-state (brackets)
- Activity-timer since last message of a chatter
+- Activity timer since a user's last message
        </added>
-        <changed>- QRB/QTF info in pm-window</changed>
+        <changed>- QRB/QTF information in the private-message window</changed>
        <fixed>
- Behaviour of messagefilter-radiobutton corrected (tnx Gian)
+- Behaviour of the message-filter radio button corrected (thanks to Gian)
- Error sending macros on selected stations in pm window (tnx Gian)
+- Error when sending macros to selected stations in the private-message window fixed (thanks to Gian)
        </fixed>
        <removed>- boot sound</removed>
    </changeLog>
@@ -276,13 +276,13 @@ processing engine which is now fixed.
        <date>2024-02</date>
        <description>First stable release</description>
        <added>
- audio notification support
+- Audio-notification support
- update-available warning
+- Update-available warning
- changelog displaying
+- Changelog display
- known-bugs displaying
+- Known-bugs display
- message filters for selected station
+- Message filters for the selected station
- stationlist-filters (show by qtf / textstring, hide by qrb, qtf, workedstate)
+- Station-list filters (show by QTF / text string; hide by QRB, QTF or Worked state)
- 10 macros (textsnippets available by hitting strg+numberkey)
+- 10 macros (text snippets available with Ctrl+number key)
        </added>
        <changed></changed>
        <fixed></fixed>
@@ -291,27 +291,27 @@ processing engine which is now fixed.
    <changeLog>
        <changedVersionNumber>0.9</changedVersionNumber>
        <date>2024-02</date>
-        <description>Now the chat is disconnectable without closing it</description>
+        <description>The chat can now be disconnected without closing the application</description>
        <added></added>
        <changed></changed>
-        <fixed>disconnect-button, Textsnippets in CQ Window, "/CQ" at click on own sendtexts,
+        <fixed>Disconnect button, text snippets in the CQ window, "/CQ" when clicking own sent texts;
-setname "qrg" works now</fixed>
+setname "qrg" now works</fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>0.8</changedVersionNumber>
        <date>2023-10</date>
-        <description>savesettings function and disconnect function added. MYCALL-Highlighting fixed</description>
+        <description>Save-settings and disconnect functions added. MYCALL highlighting fixed</description>
-        <added>savesettings function, disconnect function</added>
+        <added>Save-settings function, disconnect function</added>
        <changed></changed>
-        <fixed>MYCALL-Highlighting</fixed>
+        <fixed>MYCALL highlighting</fixed>
        <removed></removed>
    </changeLog>
    <changeLog>
        <changedVersionNumber>0.7</changedVersionNumber>
        <date>2023-07</date>
-        <description>Internal database for worked stations, shortcut and textsnippet editor</description>
+        <description>Internal database for worked stations, shortcut editor and text-snippet editor</description>
-        <added>database, shortcut-editor, textsnipped-editor</added>
+        <added>Database, shortcut editor, text-snippet editor</added>
        <changed></changed>
        <fixed></fixed>
        <removed></removed>
@@ -319,8 +319,8 @@ setname "qrg" works now</fixed>
    <changeLog>
        <changedVersionNumber>0.6</changedVersionNumber>
        <date>2023-07</date>
-        <description>Added periodically sent beacon function</description>
+        <description>Added a periodically sent beacon function</description>
-        <added>beacon to public channel</added>
+        <added>Beacon to the public channel</added>
        <changed></changed>
        <fixed></fixed>
        <removed></removed>
@@ -328,8 +328,8 @@ setname "qrg" works now</fixed>
    <changeLog>
        <changedVersionNumber>0.5</changedVersionNumber>
        <date>2023-02</date>
-        <description>Airscout interface, UDP interfaces for worked-station data and TRX info, shortcuts</description>
+        <description>AirScout interface, UDP interfaces for Worked-station data and TRX information, shortcuts</description>
-        <added>Airscout-interface, packetreceiver for ucxlog, n1mm, qartest</added>
+        <added>AirScout interface, packet receivers for UCXLog, N1MM and QARTest</added>
        <changed></changed>
        <fixed></fixed>
        <removed></removed>
@@ -337,8 +337,8 @@ setname "qrg" works now</fixed>
    <changeLog>
        <changedVersionNumber>0.4</changedVersionNumber>
        <date>2022-12</date>
-        <description>Worked info by logfile via universal pattern matching logfile interpreter</description>
+        <description>Worked information from a log file through a universal pattern-matching log-file interpreter</description>
-        <added>simple-logfile</added>
+        <added>Simplelogfile</added>
        <changed></changed>
        <fixed></fixed>
        <removed></removed>
@@ -346,7 +346,7 @@ setname "qrg" works now</fixed>
    <changeLog>
        <changedVersionNumber>0.3</changedVersionNumber>
        <date>2022-10</date>
-        <description>Added a GUI, chat was text based only</description>
+        <description>Added a GUI; the chat had previously been text-based only</description>
        <added>Graphical user interface</added>
        <changed></changed>
        <fixed></fixed>
@@ -355,8 +355,8 @@ setname "qrg" works now</fixed>
    <changeLog>
        <changedVersionNumber>0.2</changedVersionNumber>
        <date>2022-10</date>
-        <description>Pattern matching system for frequency information, frequency collection per chatmember</description>
+        <description>Pattern-matching system for frequency information, frequency collection per chat member</description>
-        <added>frequency-extraction for every callsign</added>
+        <added>Frequency extraction for every callsign</added>
        <changed></changed>
        <fixed></fixed>
        <removed></removed>
@@ -364,7 +364,7 @@ setname "qrg" works now</fixed>
    <changeLog>
        <changedVersionNumber>0.15</changedVersionNumber>
        <date>2022-09</date>
-        <description>Researched the Chatprotocol and developed the base communication with the chatserver</description>
+        <description>Researched the chat protocol and developed the basic communication with the chat server</description>
        <added></added>
        <changed></changed>
        <fixed></fixed>
@@ -4,7 +4,7 @@ icon: 💬
 category: ON4KST Chat
 since: "1.26"
 summary: Monitor two ON4KST categories in one interface while preserving the complete callsign and category required for correct message routing.
-description: KST4Contest combines two ON4KST chat sessions, keeps individual logins separate and shares station-related Worked, band and priority information through the normalised base callsign.
+description: KST4Contest uses one authenticated ON4KST TCP session for two chat categories, keeps their message contexts separate and shares station-related Worked, band and priority information through the normalised base callsign.
 tagsList:
  - ON4KST
  - dual chat
@@ -29,43 +29,47 @@ VHF, UHF and microwave activity is not always concentrated in one ON4KST categor
 Opening two unrelated chat clients would show both message streams, but every comparison between them would remain manual. Worked status, band information, active stations and sked context would still be distributed across separate windows.
-KST4Contest therefore opens up to two ON4KST chat sessions and processes both in one operating context.
+KST4Contest therefore signs in once and adds a second chat category through ON4KST Single Sign-on when required. Both categories use the same TCP session and are processed in one operating context.
 ![Primary and secondary chat settings](/manual/assets/client_settings_window_station.png)
-## Two connections remain two connections
+## One connection, two category contexts
-The primary and secondary chat sessions retain their own:
+KST4Contest authenticates the ON4KST TCP session with one local login callsign and one password. The session uses one common locator for both categories; the locator is not an authentication credential. The primary category is part of the initial login. If a second category is enabled, the client adds it to the same session through Single Sign-on. It does not open another TCP connection or perform a second local login.
 The primary and secondary categories still retain their own:
 - ON4KST chat category;
- login callsign;
+- visible category-specific **Name in Chat** field;
 - public message stream;
- destination category for outgoing messages; and
+- message context and destination category for outgoing messages;
- active login entries.
+- local QRG;
 - beacon enable setting and message template; and
 - active chat-member entries.
-The second session can use the same local callsign as the primary session or a separately configured callsign. A different login may be useful when the station uses category- or band-specific suffixes.
+The **Name in Chat 2** field configures only the visible name field for the second category. It is neither a second login callsign nor a message destination. Both categories continue to use the one local login callsign and the common locator of the TCP session.
-Combining the display does not turn both sessions into one ON4KST connection. Messages must still be sent through the category in which the intended destination is active.
+One connection therefore does not mean one combined message stream. Messages must still be sent in the category in which the intended destination is active.
 ## What identifies an active chat member?
-An active login is identified by:
+For remote chat participants, an active member is identified by:
-1. the complete visible callsign, including its suffix; and
+1. the complete visible callsign variant, including its suffix; and
 2. the ON4KST chat category.
 Both parts are required.
 Consider the following active entries:
-| Complete callsign | Chat category | Active entity |
+| Complete visible callsign variant | Chat category | Active entity |
 |---|---:|---|
 | `9A0BB-2` | 1 | separate |
 | `9A0BB-70` | 1 | separate |
 | `9A0BB-23` | 2 | separate |
 | `9A0BB-13` | 2 | separate |
-All four entries belong to the same base callsign, but they are four different chat logins. Joining, updating or leaving the chat affects only the corresponding complete callsign in the corresponding category.
+All four entries belong to the same base callsign, but they are four different chat-member identities. Joining, updating or leaving the chat affects only the corresponding complete callsign in the corresponding category.
 This is particularly important for `9A0BB-2` and `9A0BB-70`: because both use the same category, the category alone cannot distinguish them.
@@ -73,7 +77,7 @@ This is particularly important for `9A0BB-2` and `9A0BB-70`: because both use th
 ## How are messages routed?
-When a row is selected, KST4Contest retains both the complete callsign and its category. A private message is addressed to that complete callsign and sent through the corresponding chat session.
+When a row is selected, KST4Contest retains both the complete callsign and its category. A private message is addressed to that complete callsign and sent in the corresponding category within the shared session. Incoming private messages for the local station are addressed to the local login callsign, not to a category-specific **Name in Chat** field.
 Selecting `9A0BB-70` in category 1 therefore creates a message for `9A0BB-70` in category 1. It is not silently reduced to `9A0BB`, and it is not sent through category 2 merely because another variant is active there.
@@ -86,11 +90,11 @@ The same distinction is used for:
 - sked reminder messages; and
 - leaving or updating an active chat entry.
-The different variants do not have to be able to send messages to each other. That is not the purpose of the function. They must remain correctly reachable by other stations and receive the messages addressed to their respective login.
+The different variants do not have to be able to send messages to each other. That is not the purpose of the function. They must remain correctly reachable by other stations and receive the messages addressed to their respective chat-member identity.
 ## What is shared through the base callsign?
-Some information describes the radio station rather than one temporary chat login. This information is aggregated through the normalised base callsign.
+Some information describes a remote radio station rather than one temporary chat-member identity. This information is aggregated through the normalised base callsign.
 For the examples above, the common base callsign is `9A0BB`.
@@ -109,7 +113,7 @@ Per-band information is still retained. Working the station on 70 MHz does not m
 ## Why are band hints combined?
-A station may use its visible login names to describe the available bands:
+A remote station may use complete visible callsign variants to describe the available bands:
 - `9A0BB-2`
 - `9A0BB-70`
@@ -124,13 +128,13 @@ A manual NOT-QRV mark still takes precedence. An automatically detected suffix o
 ## Why is the Priority Score not duplicated?
-The Priority Score represents the operating priority of the station, not the number of chat logins it happens to use.
+The Priority Score represents the operating priority of the remote station, not the number of chat-member identities it happens to use.
 KST4Contest therefore calculates the score for the normalised base callsign and projects it to the active variants. Several suffixes do not create several independent priority candidates merely by being logged in more than once.
 The individual rows remain selectable because the correct message destination still matters.
-In plain terms: one station should not occupy half the priority list, but the operator must still be able to contact the correct login.
+In plain terms: one station should not occupy half the priority list, but the operator must still be able to contact the correct chat-member identity.
 ## Categories are context, not proof of a band
@@ -150,7 +154,7 @@ Categories unrelated to the supported VHF, UHF, microwave or EME workflows are i
 Sharing the station context does not merge everything associated with the base callsign.
-The following remain tied to the individual login or message:
+The following remain tied to the individual remote chat member or message:
 - complete message destination;
 - chat category;
@@ -158,15 +162,15 @@ The following remain tied to the individual login or message:
 - visible callsign suffix;
 - join and leave state;
 - the specific row selected by the operator; and
- message history associated with that login and category.
+- message history associated with that chat member and category.
-This distinction is the basis of the dual-chat implementation: operational information may be shared where it describes the same radio station, while communication remains attached to the actual ON4KST login.
+This distinction is the basis of the dual-chat implementation: operational information may be shared where it describes the same remote radio station, while communication remains attached to the complete ON4KST callsign and category.
 ## Practical limitations
-The shared base-callsign model assumes that suffix variants separated by `-` belong to the same underlying amateur-radio station. That is appropriate for common logins such as `-2`, `-70`, `-144` or `-432`.
+The shared base-callsign model assumes that complete visible callsign variants separated by `-` belong to the same underlying amateur-radio station. That is appropriate for variants such as `-2`, `-70`, `-144` or `-432`.
-KST4Contest cannot determine whether two operators behind those logins are using one station, several independently operated stations or a distributed contest setup. Worked and band information is therefore shared at callsign level, while the operator remains responsible for selecting the correct chat destination.
+KST4Contest cannot determine whether two operators behind those chat entries are using one station, several independently operated stations or a distributed contest setup. Worked and band information is therefore shared at callsign level, while the operator remains responsible for selecting the correct chat destination.
 [Read how both chat categories are configured.](/manual/en/configuration/#login-and-chat-categories)
@@ -141,10 +141,12 @@ Every generated spot contains:
 Automatically generated directional spots can additionally include up to two current AirScout entries. A manually triggered map spot uses the selected station's locator without this optional addition.
 The payload is a fixed, DXSpider-compatible 75-character line. The DX callsign begins in column 27, the 30-character comment begins in column 40 and the UTC time begins in column 71. Short comments are padded; longer comments are limited to the available field. A DX callsign longer than twelve characters is rejected rather than silently truncated.
 An example comment with AirScout information may look like this:
 ```text
-JN49GL , AP: 1min, 100%; 4min, 75%
+JO51HK AP 1m/100%;4m/75%
 ```
 AirScout information is optional. A missing AirScout response does not prevent an automatic directional spot from being sent.
@@ -199,6 +201,8 @@ A missing password is acceptable inside the intended station network. It is not
 Use **Send test spot** after the logger has connected.
 The test uses `DO5AMF` with the comment `DXC test: You donated $100!` and `.300` on the configured fallback band.
 A successful test confirms that at least one client received the generated spot. If the test works but real spots do not appear, the TCP connection is probably not the problem. In that case, check the conditions used for the actual directional opportunity:
 - Were valid locators available?
@@ -37,7 +37,9 @@ The available information depends on the interface:
 | General QSO UDP listener | yes | when included | when included |
 | Win-Test network listener | yes | yes | when included |
-The Simplelogfile interpreter is broadly compatible but can only identify worked callsigns. A callsign match in a file does not provide enough information to infer a reliable band or grid square.
+The Simplelogfile interpreter reads the selected text file once per minute using a fixed callsign pattern. Matches are normalised to the base callsign and set the global Worked status for all active variants. A callsign match does not provide enough information to infer a reliable band or grid square.
 If the file does not exist, KST4Contest creates it and first asks you to check whether Simplelogfile is needed or whether the logging application provides a supported network interface. The notice then displays the path together with the initial setup and contest checks. The file itself is the durable source. Its Worked marks are not stored in SQLite, are not removed automatically during the running session and are not reset automatically for a new contest.
 The general UDP listener processes packets from UCXLog, N1MM+, QARTest and DXLog.net. Where the packet contains band and locator data, KST4Contest also updates the per-band Worked state and worked grid square.
@@ -47,7 +49,9 @@ The general UDP listener processes packets from UCXLog, N1MM+, QARTest and DXLog
 Win-Test uses a separate listener for its native network protocol. KST4Contest resolves the Win-Test band ID, including 50 and 70 MHz, and stores the resulting Worked information in the same internal database.
-STATUS packets can also update the local QRG. In multi-operator networks, a station-name filter prevents STATUS packets from another operating position from replacing the frequency of the intended radio.
+QSOs logged before KST4Contest was started are recovered from Win-Test as well. As soon as a Win-Test station is detected, the missing part of its log is requested over the native protocol, so stations already worked are marked as worked even when the client joins the contest late. The recovery needs no setting, keeps running to close gaps caused by lost packets, and covers every log in a multi-station network.
 STATUS packets can also update the local QRG when QRG synchronisation is enabled and valid packets actually arrive. Enabling the source alone does not supply a frequency. In multi-operator networks, a station-name filter prevents STATUS packets from another operating position from replacing the frequency of the intended radio.
 Win-Test can additionally receive skeds created in KST4Contest. The handover only takes place when a QRG matching the selected band can be determined. No fixed fallback frequency is inserted merely to make the packet technically valid.
@@ -55,7 +59,9 @@ Win-Test can additionally receive skeds created in KST4Contest. The handover onl
 ## Stored state and limitations
-Worked, NOT-QRV and worked-grid information is stored in the internal SQLite database and restored after a restart. Contest-related records expire automatically after three days.
+Worked, NOT-QRV and worked-grid information received through the network interfaces, together with manual marks, is stored in the internal SQLite database and restored after a restart. Contest-related records expire automatically after three days.
 Simplelogfile marks follow a different data flow: they remain runtime state derived from the selected file. The file is read again after a restart and has no automatic contest reset. A database reset does not change or empty it. Callsigns contained in the file are marked as worked again during the next evaluation within one minute.
 KST4Contest can only use the fields supplied by the selected interface. Missing band or locator data is not reconstructed from guesswork. This makes the result less complete in some cases, but also avoids turning an incomplete log packet into incorrect Worked information.
@@ -170,7 +170,7 @@ A public beacon has no selected remote station. It can therefore use only global
 ![Beacon settings for both chat categories](/manual/assets/client_settings_window_beacon.png)
-Each chat category has its own enable setting and message template. Both categories use the same timer interval. The second beacon is sent only when the second chat login and its beacon are enabled.
+Each chat category has its own enable setting and message template. Both categories use the same timer interval. The second beacon is sent only when the second category and its beacon are enabled in the shared ON4KST session.
 Global variables are evaluated again on every timer run. A QRG changed by the logger can therefore be included in the next beacon without editing its template.
@@ -37,9 +37,13 @@ Complete frequencies provide their band directly. Examples include:
 ```text
 144.210
 432,088
 144307
 10368.100
 10368100
 ```
 The separator is optional for a complete frequency. For a digit-only value, KST4Contest treats the final three digits as the kHz part. This turns `144307` in a station name into `144.307 MHz` and `10368100` in a public or directed chat message into `10368.100 MHz`. The result still has to fall within one of the supported band ranges.
 Relative forms omit the band and need additional context:
 ```text
@@ -72,13 +72,13 @@ The base callsign is used to decide whether a message should be shown in the mon
 A message for `DN9APW-70` therefore remains a message for `DN9APW-70`. It is not redirected to `DN9APW`, `DN9APW-2` or another suffix.
-This is the same distinction used elsewhere in KST4Contest: station-related information may be shared through the base callsign, while communication remains attached to the actual ON4KST login.
+This is the same distinction used elsewhere in KST4Contest: station-related information may be shared through the base callsign, while communication remains attached to the remote participant's complete callsign and category.
 ## Both chat categories are included
-When two ON4KST categories are connected, the same monitoring list applies to both. There is no need to configure the station separately for each category.
+When two ON4KST categories are active in the same session, the same monitoring list applies to both. There is no need to configure the station separately for each category.
-The category of the individual message remains part of its context. Combining the monitoring view does not merge the underlying chat connections.
+The category of the individual message remains part of its context. Combining the monitoring view does not merge the category-specific message streams or create separate chat connections.
 ## What the function does not do
@@ -44,6 +44,8 @@ The map retains the context already known by KST4Contest:
 Only stations with a usable six-character locator can be positioned. Active chat variants of the same normalised base callsign are combined into one marker, while their actual message destinations remain separate.
 At lower zoom levels, **Group nearby stations** keeps dense map areas readable by combining close markers into screen-based clusters. The grouping can be disabled immediately without changing the current viewport or selection, and KST4Contest remembers the choice. This setting does not split the geographical marker shared by active variants of the same base callsign.
 Green has a specific meaning: it marks a directional opportunity derived from directed ON4KST messages. It does not merely mean that the marker happens to lie inside the local antenna sector.
 ## Selection remains connected to the chat
@@ -67,7 +69,7 @@ G1YBB uses the map particularly consistently as a geographical contest worklist:
 This creates a direct visual progression through the remaining stations. It is an optional and deliberately consistent operating method, not a prerequisite for using the map or KST4Contest.
-[Watch G1YBB demonstrate this workflow.](https://www.youtube.com/watch?v=BCNCjowPgec)
+[Watch G1YBB demonstrate this workflow.](https://www.youtube.com/watch?v=lMQZMiSHlUI)
 ## What does the path analysis calculate?
@@ -1,9 +1,9 @@
 ---
 title: Hotfix Version 1.41.1
-summary: Hotfix of a bug in Version 1.41
+summary: Hotfix for a bug in version 1.41
 date: 2026-07-08
 ---
 ## Version 1.41.1
-We had a bug, where KST4Contest would clear out the text field, where you would send your messages after a period. It also happend to set your Cursor back to the Sending Field, when you were filtering for a station. We fixed this bug today. The new release is [here](https://github.com/praktimarc/kst4contest/releases/tag/v1.41.1). You can also download the artifacts as always via the [Downloads-Page](/download/).
+KST4Contest cleared the message input field after a while. It could also move the cursor back to that field while you were filtering for a station. This bug is fixed in version 1.41.1. The new release is available [here](https://github.com/praktimarc/kst4contest/releases/tag/v1.41.1). You can also download the artifacts as usual from the [downloads page](/download/).
@@ -0,0 +1,29 @@
 ---
 title: Version 1.43.1 released
 summary: Reliable log synchronisation, persistent layouts and better DX Cluster compatibility
 date: 2026-09-03
 ---
 ## Version 1.43.1
 Version 1.43 focuses on the parts of KST4Contest that have to keep working during a long contest: ON4KST connection monitoring, log synchronisation, Worked information and the data sent to external logging software.
 The first v1.43.0 packages already contained all functional changes described below, but some embedded version metadata still identified the build as version 1.42. v1.43.1 corrects this. If you already downloaded v1.43.0, use v1.43.1 instead.
 ### What changed
 - **More reliable log synchronisation:** The Simplelogfile parser now closes the selected file after every pass, handles suffix variants by their base callsign and reports when a missing file has been created. UCXLog-compatible packets and Win-Test events share the same band normalisation, including the existing microwave bands.
 - **Correct Worked state after login:** Persisted Worked information is applied before the initial ON4KST user list becomes visible. Reconnects and both chat categories therefore start with the correct state.
 - **No false disconnect on a quiet server:** KST4Contest actively checks a quiet ON4KST session before treating it as dead. A period without new activity lines no longer causes an unnecessary reconnect.
 - **DX Cluster compatibility:** Local spots now use a fixed, DXSpider-compatible 75-character line format that is also accepted reliably by DXLog. Frequencies up to 24 GHz keep the required column positions.
 - **Layouts that stay where you put them:** Table column widths, window sizes and relevant dividers are saved automatically. Truncated table values expose their full text in a tooltip.
 - **Controllable map grouping:** **Group nearby stations** switches map clustering on or off without changing the current viewport or selected station.
 - **Smaller corrections:** Complete QRGs without a decimal separator are recognised across the supported bands, and private-message age highlighting no longer remains attached to reused table rows.
 The complete technical list is available in the [changelog](/manual/en/changelog/) and the [GitHub release notes](https://github.com/praktimarc/kst4contest/releases/tag/v1.43.1).
 ### Getting it
 Packages for Windows, Linux and macOS are available on the [download page](/download/) and in the [GitHub release](https://github.com/praktimarc/kst4contest/releases/tag/v1.43.1). The AUR packages are updated through their normal release workflow.
 The German and English manuals have also been revised. The new contest-workflow chapter connects the individual functions into a practical operating sequence instead of describing them only in isolation. 73
Author	SHA1	Message	Date
Rsclub2_2andClaude Opus 5	4ad1cf71dd	Document that a sandboxed logging program needs its own network permission A logging program started as a Flatpak, or through a Wine environment such as Bottles, uses the network permissions of that sandbox. Without shared=network its 127.0.0.1 is not the loopback KST4Contest listens on, so the connection is refused although KST4Contest reports the port correctly. Adds the check and the override command to the DX Cluster troubleshooting section in both language versions, and notes that the published KST4Contest Flatpak manifest already carries --share=network. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HT8R7zTMoQnmJj6dGbaqqf	2026-09-07 22:21:47 +02:00
github-actions[bot]	ad212e3e71	chore: update AUR packages to v1.44.0 [skip ci]	2026-09-04 12:23:20 +00:00
CopilotandRsclub22	08d65a0e23	Serialize Flatpak repo publishes to prevent non-fast-forward push failures (#88 ) * Initial plan * Serialize Flatpak repo publish jobs Co-authored-by: Rsclub22 <37273508+Rsclub22@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: Rsclub22 <37273508+Rsclub22@users.noreply.github.com>	2026-09-04 14:07:43 +02:00
Rsclub2_2	edf71b4105	Version 1.44.0	2026-09-04 13:55:45 +02:00
Rsclub2_2	885bf83c2f	add DN9APW to credit.	2026-09-04 13:47:39 +02:00
Rsclub2_2	634b88238d	WT-Logsync when KST4C is not actively receiving WT Packets, so that we can later mark QSOs as marked, even though we never received the packet.	2026-09-04 13:42:50 +02:00
github-actions[bot]	830e4020a2	chore: update AUR packages to v1.43.1 [skip ci]	2026-09-03 21:50:38 +00:00
Marc Froehlich	7ee50267ec	Document v1.43 and fix release metadata	2026-09-03 23:42:17 +02:00
Marc Froehlich	113e843111	updated version strings now corrected	2026-09-03 22:31:05 +02:00
github-actions[bot]	79161d2afa	chore: update AUR packages to v1.43.0 [skip ci]	2026-09-03 20:23:04 +00:00
Marc Froehlich	3ed1cad5ab	updated version strings	2026-09-03 22:20:26 +02:00
Marc Froehlich	75fe45b50b	updated version string	2026-09-03 22:16:23 +02:00
Marc Froehlich	53555cbe69	Add optional station map clustering toggle (solves #79 ) and added documentation	2026-09-03 01:26:19 +02:00
Marc Froehlich	595fb84362	Persist table layouts just after changing the real used sizes and show truncated cell tooltips in the whole applications tables v2	2026-09-03 00:26:16 +02:00
Marc Froehlich	9eb0550106	Persist table layouts just after changing the real used sizes and show truncated cell tooltips in the whole applications tables	2026-09-02 23:45:19 +02:00
Marc Froehlich	51aa04bfb5	Fix DX Cluster spot formatting - emit fixed 75-character DXSpider-compatible lines - align callsign, comment, and UTC fields - support frequencies up to 24 GHz - reject overlong callsigns instead of truncating them - add protocol tests and update documentation Fixes #86	2026-09-02 20:03:55 +02:00
Marc Froehlich	6b0d699a98	Fix compact QRG parsing and initial worked-state restore - parse digit-only full frequencies across supported bands - restore persisted Worked state before publishing initial user lists - add regression tests and update documentation Fixes #85	2026-09-02 19:17:52 +02:00
Marc Froehlich	6b29ffe3ba	refactored the ugly switch case statement in logged-band-recognition	2026-08-31 00:15:26 +02:00
Marc Froehlich	08b109106e	manual: corrected behaviour description of simplelogfile, Airscout, MYQTF, corrected some typos	2026-08-29 10:07:24 +02:00
Marc Froehlich	21b2d9970a	manual: decribed SimpleLogFile-parser	2026-08-29 00:02:57 +02:00
Marc Froehlich	94fc13e3c3	refactoring of the SimpleLogFile-parser	2026-08-28 23:19:56 +02:00
Marc Froehlich	d475c6b2c4	manual: wording corrected for the settings at different places	2026-08-28 22:22:35 +02:00
Marc Froehlich	211be6081d	manual: described dual chat	2026-08-28 22:08:31 +02:00