52 GPSMAP ® 4000/5000 Series Owner’s ManualDigital Selective CallingDSCTo show or hide the trail line for a specific vessel that is sending position reports:1. From the Home screen, select Information > DSC List.2. Select the vessel from the list, and then select Review.3. Select Trail to show or hide the trail for the vessel on the Navigation Chart.To change the symbol and color of the trail line for a vessel:1. From the Home screen, select Information > DSC List.2. Select any call from that vessel from the list, and then select Review > Edit.3. Select Symbol to edit the symbol, or select Trail Line to edit the line color.Placing an Individual Routine CallWhen you connect your Garmin chartplotter to a Garmin VHF NMEA 2000-compatible radio, youcan use the chartplotter interface to set up an individual routine call. When setting up an individualroutine call from your chartplotter, you can select one of the following channels on which you wantto communicate. The radio transmits this request with your call.The selection of a DSC channel is limited to those channels that are available in all frequency bands:6, 8, 9, 10, 13, 15, 16, 17, 67, 68, 69, 71, 72, 73, or 77.NOtE: The default channel is 72. However, select Channel to select a different channel from the list.If you select a different channel, the chartplotter will use that channel for subsequent calls until you callusing a different channel.To make an individual routine call:1. While viewing a chart, select Menu > Other Vessels > DSC List.2. Select the station to call from the list.3. Select Review > Call with Radio.4. Select Send to send the information about the call to the radio.5. On your Garmin VHF radio, select Call.Calling an AIS TargetWhen you connect your Garmin chartplotter to a Garmin VHF NMEA 2000-compatible radio, youcan use the chartplotter interface to set up an individual routine call to an Automatic IdentificationSystem (AIS) target. For more information on selecting a channel other than the default channel(Channel 72), see “Placing an Individual Routine Call.”To make an individual routine call to an AIS target:1. While viewing a chart, select an AIS target .2. Select AIS Vessel > Call with Radio.3. Select Send to send the information about the call to the radio.4. On your Garmin VHF radio, select Call.