Garmin GPSMAP 190-00683-00 - Manual (Page 83)

Setting Up DSC
Use the Setup sub tab to turn DSC on and off. If you have more than
one chartplotter and only want DSC to show on another chartplotter,
turn DSC off on this unit.
This Setup sub tab also allows you to simulate distress calls and
position reports while the unit is in Simulator Mode (see page 12 ).
Simulating calls is helpful for practice before connecting to the real
system. The Distress Call simulator also helps to check if alarms are
working properly.
DSC Setup
Sonar Tab
Use the Sonar tab contains options for the Sonar Page. See the
“ Setting Up and Using Sonar ” section beginning on page 103 for
more information about sonar setup options.
NOTE: You must have a GSD 21 Sounder Module connected to
your GPSMAP 378/478 to use sonar.
Main Menu—Sonar Tab
GPSMAP 378/478 Owner’s Manual 7
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