GPSMAP 2106/2110 Owner’s Manual 57M AIN MENU > ALARMS TABSystem AlarmsUse the System sub tab to set alarms for the system clock, batteries, and GPSaccuracy.The System sub tab contains the following alarms:• Clock—provides an alarm for the system clock. Enter a time in the timefield and turn the alarm on and off from the control field menu. Rememberto enter alarm times in the same time format (UTC or local) you are usingfor your system. The unit must be on for the clock alarm to work.• Battery—sets an alarm to sound when the battery reaches a user-determined low voltage.• GPS Accuracy—sets an alarm to sound when the GPS location accuracyfalls outside the user-determined value.Nav (Navigation) AlarmsUse the Nav sub tab to set navigational alarms, including anchor drag, arrival, andoff course.• Anchor Drag—sets an alarm to sound when a specified drift distance isexceeded. Enter a value in the distance field, and use the control field toturn the alarm on and off.• Arrival—sets an alarm to sound when a specified distance or time awayfrom a destination waypoint is exceeded. Enter a distance, radius, or timefor sounding the alarm, and use the control field to set the alarm to Off,Dist (distance), or Time.• Off Course—sets an alarm to sound when you are off course by a specificdistance. Enter a distance in the distance field, and use the control field toturn the alarm on and off.
