44 GPSMAP® 585 PlusDigital Selective CallingNetworked Chartplotter and VHF Radio FunctionalityIf you have a NMEA 0183 VHF radio connected to your chartplotter, thesefeatures are enabled.• The chartplotter can transfer your GPS position to your radio. If your radiois capable, GPS position information is transmitted with DSC calls.• The chartplotter can receive digital selective calling (DSC) distress andposition information from the radio.• The chartplotter can track the positions of vessels sending position reports.Turning On DSCSelect Settings > Other Vessels > DSC.DSC ListThe DSC list is a log of the most recent DSC calls and other DSC contactsyou have entered. The DSC list can contain up to 100 entries. The DSC listshows the most recent call from a boat. If a second call is received from thesame boat, it replaces the first call in the call list.Viewing the DSC ListBefore you can view the DSC list, the chartplotter must be connected to aVHF radio that supports DSC.Select Navigation Info > Other Vessels > DSC List.Adding a DSC ContactYou can add a vessel to your DSC list. You can make calls to a DSC contactfrom the chartplotter.1 Select Navigation Info > Other Vessels > DSC List > Add Contact.2 Enter the Maritime Mobile Service Identity (MMSI) of the vessel.3 Enter the name of the vessel.Incoming Distress CallsIf your compatible chartplotter and VHF radio are connected using NMEA0183, your chartplotter alerts you when your VHF radio receives a DSCdistress call. If position information was sent with the distress call, thatinformation is also available and recorded with the call.designates a distress call in the DSC list and marks the position of thevessel on the Navigation chart at the time of the DSC distress call.Navigating to a Vessel in Distressdesignates a distress call in the DSC list and marks the position of avessel on the Navigation chart at the time of the DSC distress call.1 Select Navigation Info > Other Vessels > DSC List.2 Select a position-report call.3 Select Navigate To.4 Select Go To or Route To.Position TrackingWhen you connect the chartplotter to a VHF radio using NMEA 0183, you cantrack vessels that send position reports.Every position report call received is logged in the DSC list (page 34).Viewing a Position Report1 Select Navigation Info > Other Vessels > DSC List.2 Select a position-report call.