Owner's Manual

46 GPSMAP 400/500 Series Owner’s Manual
Conguring the Chartplotter
• —if you have Activation set to
Time, select  to set the number of minutes before
arrival that the alarm should sound. If you have Activation set
to Distance, select  to set the distance before
arrival that the alarm should sound. Use the  to change
the time or distance.
—set an alarm to sound when you exceed a specied
drift distance.
—set an alarm to sound when you are off course by a
specied distance.
Setting System Alarms
To set a system alarm from the Home screen, select  >
> .
—set an alarm using the system (GPS) clock. The unit must
be on for the clock alarm to work.
—set an alarm to sound when the battery reaches a specied
low voltage.
—set an alarm to sound when the GPS location
accuracy falls outside the specied value.
Setting Sonar Alarms
To set a sonar alarm from the Home screen, select  >
> .
 You must be receiving NMEA sonar depth data or using a
Garmin sounder module to congure sonar alarms.
—set an alarm to sound when the depth is less than
the specied value.
—set an alarm to sound when the depth is greater than
the specied value.
—set an alarm to sound when the transducer reports
a temperature that is 2°F (1.1°C) above or below the specied
temperature.
—set an alarm to sound when the unit detects a suspended
target of the specied symbols.
—sounds an alarm for all sh sizes.
—sounds an alarm for medium and large sh only.
—sounds an alarm for large sh only.