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Walking or driving very slowly may also
substantially reduce GPS performance.
Even where location information can be
calculated in such situations, it may take much
longer to do so, and your location estimate may
not be as accurate.
Even where adequate signals from multiple
satellites are available, your GPS feature will
only provide an approximate location, often
within 45 meters (150 feet) but sometimes
much further from your actual location. Advice
on how to improve GPS performance is
provided in "Enhancing GPS Performance" on
page 92.
While the GPS feature of your handset can be a
valuable navigational aid, it does not replace the
need for careful navigating and good judgment.
Never rely solely on one device for navigation.
Remember that the accuracy of the location
information and the time needed to obtain it will
vary depending on circumstances, particularly the
ability to receive signals from adequate numbers of
satellites.
Viewing Your Approximate Location
The satellites used by the GPS feature of your
handset are controlled by the U.S. government and
are subject to changes implemented in accordance
with the Department of Defense GPS user policy
and the Federal Radionavigation Plan. These
changes may affect the performance of the GPS
feature of your handset.
Viewing Your Approximate
Location
1 From the main menu, select GPS > Position.
2 Scroll to view the entire screen.
This displays the following information about the
last time your location was calculated:
• The time (as Greenwich Mean Time) and date
that the location was last calculated
• The approximate location, expressed as latitude
and longitude
• The estimated accuracy of the calculated
location. This estimate of accuracy is only a very
rough estimate and may vary substantially from
the actual accuracy of the approximate location
information reported.
• The number of satellites used to calculate the
location. In general, more satellites make for
better accuracy.
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