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28 GPS 72H Owner’s Manual
Settings
Alarms Tab
The Alarms tab contains settings
for Anchor Drag, Approach and
Arrival, Off Course, Shallow Water,
and Deep Water. These settings
determine if a warning beep sounds,
and if an alarm message appears.
Alarms Tab Page
Anchor Drag—alerts you when the
boat has drifted more than the set
distance.
Approach and Arrival—alerts you
when you are approaching a turn or
arriving at your destination.
Automatic—alerts you
between 15 and 90 seconds
before reaching the destination,
depending on your speed.
Distance and Time—alerts you
at the specied distance or time.
Off Course—alerts you when you
are off course more than the set
distance.
Shallow Water—requires input from
a NMEA device supplying the DPT
sentence. The Shallow Water alarm
alerts you when the water depth is
less than the set depth. For NMEA
connection information, see page 38.
Deep Water—requires input from
a NMEA device supplying the DPT
sentence. The Deep Water Alarm
alerts you when the water is deeper
than the set depth. For NMEA
connection information, see page 38.
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