Setting Up Marine Alarms - Garmin GPSMAP 78 series Owner's Manual

reflects the drawing scheme of
paper charts.
◦ Fishing—(requires marine maps)
displays a detailed view of bottom
contours and depth soundings.
Simplifies map presentation for
optimal use while fishing.
• Spot Soundings—allows you to turn
spot soundings on and set dangerous
depths.
• Light Sectors—displays the sector
in which a navigational light is visible.
You can select On to show light
sectors at all times, or you can select
auto to allow the chartplotter to
automatically filter out light sectors
depending on the zoom level.
• Symbol Set—allows you to show
NOAA or IALA symbols on the map.
• Marine alarm Setup—sets the
anchor drag alarm, off course alarm,
deep water alarm, and shallow water
alarm.
GPSMAP 78 Series Owner's Manual

Setting up Marine alarms

Setting the anchor Drag alarm
You can set an alarm to sound when you
exceed a specified drift distance while
anchored.
1
From the main menu, select Setup >
Marine Settings.
2
Select anchor Drag alarm > On.
3
Enter a distance.
4
Select Done.
Setting the Off Course alarm
You can set an alarm to sound when you
are off course by a specified distance.
1
From the main menu, select Setup >
Marine Settings.
2
Select Off Course alarm > On.
3
Enter a distance.
4
Select Done.
Customizing Your Device
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