GPSMAP 400/500 Series Owner’s Manual 53
Conguring the Chartplotter
Setting Navigation Alarms
To set a navigation alarm from the Home screen, select Congure >
Alarms > Navigation.
Arrival
—set an alarm to sound when you are within a specied
distance or time from a turn or destination waypoint.
Type—select whether you want arrival alarms to sound only
when nearing destinations or when nearing either turns or
destinations. Select Off to disable arrival alarms.
Activation
—select whether the arrival alarm triggers on time to
arrival or distance to arrival.
Change Time/Change Distance
—if you have Activation set to
Time, select Change Time to set the number of minutes before
arrival that the alarm should sound. If you have Activation set
to Distance, select Change Distance to set the distance before
arrival that the alarm should sound. Use the Rocker to change
the time or distance.
Anchor Drag
—set an alarm to sound when you exceed a specied
drift distance.
Off Course—set an alarm to sound when you are off course by a
specied distance.
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Setting System Alarms
To set a system alarm from the Home screen, select Congure >
Alarms > System.
Clock—set an alarm using the system (GPS) clock. The unit must
be on for the clock alarm to work.
Battery
—set an alarm to sound when the battery reaches a specied
low voltage.
GPS Accuracy
—set an alarm to sound when the GPS location
accuracy falls outside the specied value.
Setting Sonar Alarms
To set a sonar alarm from the Home screen, select Congure >
Alarms > Sonar.
NOTE: You must be receiving NMEA sonar depth data or have a
built-in sonar with a temperature-capable transducer to view depth
and water temperature information..
Shallow Water
—set an alarm to sound when the depth is less than
the specied value.
Deep Water
—set an alarm to sound when the depth is greater than
the specied value.
