New Directory Item PageEnter theMMSI number,name, and acomment (ifneeded) in thefields.Highlight OKand pressENTER to savethe DirectoryEntry.After creating a New Directory Item, the name created is attachedto that particular MMSI number. If you return to the Log, the newname appears under the corresponding MMSI number.Another way to input a name is from the Entry Review Page or theDSC Distress Call or DSC Position Report pages. The Name andMMSI are sent to other Garmin GPS units: Only the MMSI numbersare sent to other non-Garmin DSC users.Making a Distress CallTo make a Distress Call, press the MayDay button on your VHFradio. The call transmits on an emergency channel with the MMSInumber attached to the call, if you have DSC support. Any DSC-equipped mariner (on sea or land) within range can receive the call.Setting Up DSCUse the Setup sub tab to turn DSC on and off. If you have morethan one chartplotter and only want DSC to display on anotherchartplotter, turn DSC off on this unit.This Setup sub tab also allows you to simulate Distress Calls andPosition Reports while the unit is in Simulator Mode (see page 12).Simulating calls is helpful for practice before connecting to the realsystem. The Distress Call simulator also helps to check if alarms areworking properly.DSC Setup76 GPSMAP 378/478 Owner’s ManualM AIN MENU > DSC TAB
