Garmin GPSMAP 172C Owner's Manual - Page 75
DSC Distress Call, DSC Position Report, ENTER/MARK - marine gps chartplotter
UPC - 753759043537
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MMSI number attached to the call (if you have DSC support). Any DSC-equipped mariner (on sea or land) within range can receive the call. When the Garmin GPSMAP 172/172C is connected to a VHF with DSC support, the GPS unit displays a Call List, Log, and a Directory available to store incoming information received from another user's DSC capable VHF/GPS combination. Basic wiring is required for the Garmin unit and VHF radio to send and receive NMEA data from each other (pg. 92). DSC Distress Call With a Garmin DSC capable chartplotter/sounder properly connected to a VHF radio with DSC output, you may receive any DSC Distress Call within range. A window pops up and a message displays when a Distress Call is received. To notify you a Distress Call has been received, an alarm sounds (if enabled). The alarm only sounds on a Distress Call, and it does not sound on a Position Report. Distress Calls are broadcasted to all DSC users in radio range. Options available from this screen are: • Show on Map: If you immediately want to see the caller's position they select 'Show on Map'. • Create Waypoint: If you want to create a waypoint of that position, highlight 'Create Waypoint' and press ENTER/MARK. You also have the ability to input a caller's name, if it is known. (The caller's name replaces the MMSI number as a reference once it is entered.) DSC Position Report The Position Report operates similarly to the Distress Call. Remember this type of contact is like a phone call, but no emergency alarms are set off and the call is specific to the receiver. Position Reports are not broadcasted to all DSC users. Reference Main Menu: DSC Tab Distress Call Message Position Report Message 65