Raises an alarm if your boat moves too far away from the position it is anchored.- Satellite Map display of anchor and boat position.- Raises an alarm even if the application is not running in the foreground.- Display of a red/green icon for easy alarm recognisionStart the App before arrival at the anchorage and check for obstacles on the satellite map. Tap the blue marker the moment zou drop the anchor and select "Move Anchor" for set the position of your anchor. After enough chain went out and the anchor is set, tap the blue marker again and select "Set Alarm Distance" to set the alarm distace. Make any necessary corrections to position and distance before aktivationg the alarm Sound.