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Section 2F. Tools 127
The almanac contains information about the location of
satellites, their operational status, and other satellite
information. Keeping this information updated
enhances the performance of your GPS feature. In
most cases, your phone will be able to get a fix in
strong satellite signal conditions with outdated almanac
data, but it may take longer.
If your satellite almanac data is out of date, your phone
may prompt you to update it. Follow the instructions
that appear on the phone’s display. You may be asked
to go to a Web site or call a customer service number.
Using GPS With Map Software
You can use the GPS feature of your phone to provide
approximate location data to a laptop computer or
similar device that is running interactive map software
such as that made by DeLorme or Microsoft. This way,
if your phone has good access to GPS signals, your
approximate position on a map can be made available
as you travel in a vehicle.
To do this, connect your phone to your laptop (or other
device) with a data cable and set your phone to
transmit data (see “To connect your phone to your
laptop or other device:” on page 128). Your phone then
provides your approximate location to the device
running the map software, which displays your location
on a map. Your phone provides an updated location
every second and the map software displays your
changing location on its map.
See “Enhancing GPS Performance” on page 125 for
more details on obtaining good location information.
Note
When you make an emergency call, your phone
does not rely upon the almanac to determine your
location.
Note
Because your phone is continuously determining
your location, using the GPS feature of your phone
with map software uses the phone’s battery power
quickly.