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3. To change distance settings, scroll ↑ or ↓ to select the desired cate-
gory, then press
ENT to activate the distance dialog box. Press ↑ or ↓ to
change the first character, then press → to the next character and re-
peat until the distance is correct.
4. When your adjustments are finished, return to the last page dis-
played by repeatedly pressing
EXIT.
IMPORTANT ALARM NOTES:
Anchor Alarm: The anchor alarm may be triggered even when
you're sitting still. This typically happens when using small (less
than 0.05 mile) anchor alarm range.
Arrival Alarm: If you set the arrival alarm's distance to a small
number and you run a route (see the Navigate Routes segment),
this unit may not show navigation data to the next waypoint once
you arrive at the first waypoint, since you may not be able to come
close enough to the first waypoint to trip the arrival alarm.
Auto Satellite Search
To lock onto the satellites, the GPS receiver needs to know its current
position, UTC time and date. (Altitude is also used in the equation, but
it's rarely required to determine a position.) It needs this data so that it
can calculate which satellites should be in view. It then searches for
only those satellites.
When your GPS receiver is turned on for the first time, it doesn't know
what your position or elevation (altitude) is. The unit begins searching
for the satellites using data that it acquired the last time it was turned
on. This was probably at the factory. Since it's almost certain that
you're not at our factory, it's probably looking for the wrong satellites.
If it doesn't find the satellites it's looking for after a short time, it
switches to Auto Search. The receiver looks for any satellite in the sky.
Due to advanced technology, the auto search time has shrunk signifi-
cantly from the early days of GPS.
Once the unit locks onto the satellites, it should take less than a minute to
find your position the next time it's turned on, provided you haven't moved
more than approximately 100 miles from the last location it was used.