100 GPSMAP® 4000/5000 Series Owner’s ManualDigital Selective CallingVessel Trails on the Navigation ChartYou can view trails for all tracked vessels on the Navigation Chart, the Fishing Chart, the Mariner’s Eye 3DChart view, and the Radar Overlay. By default, a black dot ➊ appears for each previously reported position ofa tracked vessel, and a Blue Flag symbol ➋ indicates the last reported position of the vessel. A black line ➌indicating the path of the vessel also appears.You must enable the DSC Trails setting in order to view trails for tracked vessels (page 100).Note: The Mariner’s Eye 3D chart view is available if you use a BlueChart g2 Vision data card. The FishingChart is available if you use a BlueChart g2 Vision data card or a BlueChart g2 Data card, or if your built-inmap supports Fishing Charts.➌➋➊Vessel Trail on the Navigation ChartShowing and Setting the Duration of Trails for All Tracked VesselsNote: The Mariner’s Eye 3D chart view is available if you use a BlueChart g2 Vision data card. The FishingChart is available if you use a BlueChart g2 Vision data card or a BlueChart g2 Data card, or if your built-inmap supports Fishing Charts.1. From the Home screen, select Charts.2. Select Navigation Chart, Fishing Chart, Perspective 3D, or Mariner’s eye 3D.3. Select Menu > other Vessels > DSC > DSC trails.4. Select the number of hours to show tracked vessels on the chart or 3D chart view.For example, if you select 4 Hours, all trail points that are less than four hours old appear for all trackedvessels.Individual Routine CallsWhen you connect your Garmin chartplotter to a Garmin VHF NMEA 2000-compatible radio, you can usethe chartplotter interface to set up an individual routine call. When setting up an individual routine call fromyour chartplotter, you can select the DSC channel on which you want to communicate (page 100). The radiotransmits this request with your call.Selecting a DSC ChannelNote: 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. The default channel is 72. If you select a differentchannel, the chartplotter uses that channel for subsequent calls until you call using another channel.1. From the Home screen, select information > DSC List.2. Select a vessel or a station to call.3. Select Review > Call with Radio > Channel.4. Select a channel.Making an Individual Routine CallNote: When initiating a call from the chartplotter, if the radio does not have an MMSI number programmed,the radio will not receive call information.