GPSMAP 4000 Series Owner’s Manual 55
Digital Selective Calling
dSC
Viewing the DSC List
The DSC list is a log of the most-recent DSC calls and other DSC contacts you have entered. The
DSC list can contain up to 100 entries. The DSC list shows the most-recent call from a boat. If a
second call is received from the same boat, it replaces the rst call in the call list.
From a chart screen, select Menu > Other Vessels > DSC List.
Receiving Distress Calls
If your Garmin chartplotter and VHF radio are connected using NMEA 0183 or NMEA 2000,
your chartplotter alerts you when your VHF radio receives a distress call. The radio automatically
switches to monitor Channel 16 when it receives a distress call. If position information was sent with
the distress call, that information also is available and recorded with the call.
The symbol designates a distress call in the DSC list and marks the position of a vessel on the
Navigation chart at the time a DSC distress call is sent.
When you receive a DSC distress call:
1. Select Review to view details about the call.
2. Select an option:
Select Call with Radio to set up an individual routine call with the radio to call the vessel
in distress (page 57). This option is available only if you are using a Garmin NMEA 2000-
compatible VHF radio.
Select Edit to edit the vessel name and add a comment. If your radio is tracking the position
of the vessel, select Trail to show or hide the trail line for the vessel, and select Trail Line to
change the line color.
Select Clear Report to delete the call report.
Select Navigate To to Go To or Route To the position sent with the distress call (page 23).
Select Create Waypoint to set a waypoint at the position sent with the distress call.
Select Next Page or Previous Page to toggle between details related to the distress call and
a Navigation chart marking the position sent with the distress call.
Man-Overboard Distress Calls Initiated from a VHF Radio
When your Garmin chartplotter is connected to a Garmin NMEA 2000-compatible radio and you
initiate a man-overboard DSC distress call from your radio, your Garmin chartplotter displays
the Man Overboard screen and prompts you to navigate to the man-overboard point. If you have
a Garmin autopilot system connected to the network, your chartplotter prompts you to start a
Williamson’s turn to the man-overboard point.
If you cancel the man-overboard distress call on the radio, the chartplotter screen prompting you to
activate navigation to the man-overboard location no longer is displayed.
Man-Overboard Distress Calls Initiated from the Chartplotter
When your Garmin chartplotter is connected to a Garmin NMEA 2000-compatible radio and you
activate navigation to a man-overboard location, the radio displays the Distress Call page to initiate a
man-overboard distress call.
On the radio, press and hold the DISTRESS key for at least three seconds to send the distress call.
For information on placing distress calls from your radio, see your Garmin VHF Radio Owner’s
Manual. For information on activating navigation to a man-overboard location, see page 25.
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