Filter
Top Products
42 GPSMAP 400/500 Series Owner’s Manual
Conguring the Chartplotter
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 using a
Garmin sounder module to congure sonar alarms.
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.
Water Temp
—set an alarm to sound when the transducer reports
a temperature that is 2°F (1.1°C) above or below the specied
temperature.
Fish
—set an alarm to sound when the unit detects a suspended
target of the specied symbols.
—sounds an alarm for all sh sizes.
—sounds an alarm for medium and large sh only.
—sounds an alarm for large sh only.
Setting Weather Alarms
NOTE: You must have a subscription to XM WX Weather and
a connected Garmin XM WX weather receiver to view weather
information (page 55).
1. From the Home screen, select Congure > Alarms > Weather.
2. Turn the following alarms on or off: marine, tornado, severe
storm, ood, or ash ood.