Garmin GPS III - Manual (Page 14)

This usually provides a position fix in 1 minute. You’ll know you have a fix when
the unit automatically transitions from the Satellite Page to the Map Page (shown
left). Your receiver is now ready to use!
To turn the unit off:
1. Press and hold the red power key for 1 second.
Troubleshooting
If you have trouble initializing or getting a position fix, check the following:
• Does the receiver have a clear view of the sky?
If there are large buildings or mountains, or if there is heavy tree cover, the
receiver may not be receiving enough satellite signals to calculate a fix. Also, if
you’re using the GPS III on a car dash, make sure the unit is placed so that it has
the clearest possible view of the sky. Your GPS will only be able to detect satel-
lites that it can “see” through your vehicle’s windshield. Depending on the slope
of your dash or the overall surface area of the window, it may be necessary to
mount an external antenna on your vehicle’s roof or trunk in order to give the
unit a better view of the sky. (Contact your local GARMIN dealer and inquire
about the GA 26 low-profile remote antenna, part number 010-10052-02.)
• Have you selected the right area when initializing?
Check for the correct approximate position on the Map Page (press PAGE until
the Map Page appears; see pages 7 and 10), or reselect your approximate
location to restart the initialization.
• Have you moved more than 500 miles from the last calculated position
with the receiver off?
Reinitialize the receiver by selecting your approximate position on the map, or
select ‘AutoLocate’ from the Satellite Status Page options (see page 29).
To initialize the GPS III,
designate your approximate
location directly on the map
display. Use the rocker keypad
and IN/OUT zoom keys to
position the cursor on the map.
Once the GPS III has a posi-
tion fix, it will automatically
transition from the Satellite
Status Page to the Map Page.
6
GETTING STARTED
Initialization
GPS III A 7/21/98 8:51 AM Page 6