manual: corrected behaviour description of simplelogfile, Airscout, MYQTF, corrected some typos

src/main/java/kst4contest/controller/ReadUDPByWintestThread.java

@@ -370,9 +370,9 @@ public class ReadUDPByWintestThread extends Thread {
     /**
      * Resolves the project Band enum from Win-Test band IDs.
      *
-     * <p>Only bands that exist in the current Band enum are returned. 50/70 MHz are
-     * still represented as worked flags in ChatMember, but they are not part of the
-     * current Reachability/New-Locator band enum.</p>
+     * <p>Only bands that exist in the current Band enum are returned. The existing
+     * 50 MHz and 70 MHz values are resolved in the same way as the other supported
+     * VHF, UHF and microwave bands.</p>
      *
      * @param bandId Win-Test band id from ADDQSO
      * @return matching Band or null

src/main/java/kst4contest/view/Kst4ContestApplication.java

@@ -11377,6 +11377,8 @@ 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."
 			);
@@ -11419,7 +11421,8 @@ 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();
 		});
@@ -12140,7 +12143,10 @@ public class Kst4ContestApplication extends Application implements StatusUpdateL
 
 		Label explanation = new Label(
 				"File: " + filePath + "\n\n"
-						+ "Configure your logging application to write its live log to this file. "
+						+ "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 "

src/main/java/kst4contest/view/map/OfflineDemImportService.java

@@ -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
- * downloader:
+ * <p>This service only prepares local data for a possible future offline terrain
+ * 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
- * recursively. Therefore it is sufficient to import valid Copernicus DGED
- * GeoTIFF files into one dedicated folder tree.</p>
+ * <p>Importing files does not activate an offline provider or change the terrain
+ * calculation chain. The active provider remains Open-Meteo with Copernicus GLO-90
+ * 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
     ) {
     }
-}
+}