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GPSMAP 496 Owner’s Manual 107
Main Menu > Alarms Tab
alarm at its discretion.
Arrival
—sets an alarm to sound when you are a specied distance
or time away from a destination waypoint. Select Off for no Arrival
alarm. Select Dist to enter a specic distance. Select Time to enter
a specic time before the destination for the alarm to go off. Select
Auto for the unit to provide an Arrival alarm at its discretion.
Off Course
—sets an alarm to sound when off your course. Select
On, then enter a distance.
Anchor Drag
—sets an alarm to sound when you have exceeded a
specied drift distance. Select On, and then enter a distance.
Custom POI
—sets an alarm to sound when you have entered the
proximity of a custom POI.
CAUTION: Garmin is not responsible for the consequences
of using a custom POI database or the accuracy of the safety
camera or other custom POI database.
System Alarms Sub Tab
System Alarms Sub Tab
Clock—sets an alarm based on the unit’s clock. Select On, and then
enter a specic time that you want the alarm to sound. The unit must
be on for the clock alarm to work.
Ext. (External) Voltage—sets an alarm to sound when the external
voltage drops below a specied amount. Select On, and then enter a
specic voltage.
DGPS
—sets an alarm to sound when the unit loses a differential x.
Accuracy
—sets an alarm to sound when GPS accuracy falls outside
of the user-set value. Select On, and then enter a specic distance.