Motorola i570, User Manual, Page: 163 / 286

Section 2G: Using the Phone’s Tools 145
To
o
ls
Where adequate signals from multiple satellites are not
available (usually because your GPS antenna cannot establish
a view of a wide area of open sky), the GPS feature of your
phone WILL NOT WORK. Such situations include but are not
limited to:
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In underground locations.
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Inside of buildings, trains, or other covered vehicles.
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Under any other metal or concrete roof or structure.
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Between tall buildings or under dense tree-cover.
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Near a powerful radio or television tower.
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When your GPS antenna is covered (for example, by your
hand or other object) or facing the ground.
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In temperature extremes outside the operating limits of
your phone.
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. Therefore, in any
911 call, always report the location to the emergency
response center if you can and if you cannot, remain on your
phone for as long as the emergency response center instructs
you.
Even where adequate signals from multiple satellites are
available, your GPS feature will only provide an approximate
location, often within 150 feet (45 meters) but sometimes
much further from your actual location. Advice on how to
improve GPS performance is provided in “Enhancing GPS
Performance” on page 149.
While the GPS feature of your phone can be a valuable
navigational aid, it does not replace the need for careful
navigating and good judgment. Never rely solely on one