38 GPSMAP 4000 Series Owner’s Manual
Conguring the Device
ConfiGUrinG
the deViCe
Setting Alarms
You can set the chartplotter to sound an audible alarm when certain conditions are met. By default,
all alarms are turned off.
To set an alarm:
1. From the Home screen, select Congure > Alarms.
2. Select an alarm category.
3. Select an alarm.
4. Select On to turn the alarm on
5. Use the Rocker or Numeric Keypad (GPSMAP 4210 or 4212 only) to specify alarm information.
Setting Navigation Alarms
From the Home screen, select Congure > Alarms > Navigation.
Anchor Drag—set an alarm to sound when you exceed a specied drift distance.
Arrival
—set an alarm to sound when you are within a specied distance or time from a turn or
destination waypoint.
Type—select whether arrival alarms sound only when nearing destinations, or when nearing
turns and destinations. Set to Off to disable arrival alarms.
Activation
—select whether the arrival alarm triggers based on time to arrival or based on
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 or Numeric Keypad (GPSMAP 4210 or 4212 only) to change the time or
distance.
Off Course—set an alarm to sound when you are off course by a specied distance.
Setting System Alarms
From the Home screen, select Congure > Alarms > System.
Clock—sets an alarm using the system (GPS) clock. The chartplotter must be on for the clock alarm
to work.
Battery—sets an alarm to sound when the battery reaches a specied low voltage.
GPS Accuracy—sets an alarm to sound when the GPS location accuracy falls outside the user-
determined value.
Setting Sonar Alarms
NOTE: You must have an optional sonar module and a transducer connected using NMEA 0183 or
using the Garmin Marine Network to receive sonar information.
From the Home screen, select Congure > Alarms > Sonar.
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.
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