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Global Positioning System (GPS)
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The Global Positioning System (GPS) is a worldwide
radio navigation system that includes 24 satellites and
their ground stations that monitor the operation of the
satellites.
A GPS terminal, such as the GPS receiver in the Nokia Exx
Communicator, receives low-power radio signals from
the satellites, and measures the travel time of the
signals. From the travel time, the GPS receiver can
calculate its location to the accuracy of meters.
Coordinates are expressed in degrees and decimal
degrees format using the WGS-84 coordinate system.
The Global Positioning System (GPS) is operated by the
government of the United States, which is solely
responsible for its accuracy and maintenance. The
accuracy of location data can be affected by
adjustments to GPS satellites made by the United States
government and is subject to change with the United
States Department of Defense civil GPS policy and the
Federal Radionavigation Plan. Accuracy can also be
affected by poor satellite geometry. Availability and
quality of GPS signals may be affected by your location,
buildings, natural obstacles, and weather conditions.
The GPS receiver should only be used outdoors to allow
reception of GPS signals.
GPS should only be used as a navigation aid. It should
not be used for precise location measurement and you
should never rely solely on location data from the GPS
receiver for positioning or navigation.
The trip meter has limited accuracy, and rounding
errors may occur. Accuracy can also be affected by
availability and quality of GPS signals.
Maps
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Maps
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With Maps, you can see your current location on the
map, browse maps for different cities and countries,
search for addresses and different points of interest,
and plan routes from one location to another. You can
also purchase extra services, such as city guides and a
navigation service with voice guidance.
Basic world maps are currently available through Maps
and are downloaded to your device when you use the
application. Some maps may be delivered with the
device. The map coverage and availability may vary.
Browse maps
When you open Maps, you see an overview of the globe.
When your device finds the satellite signal, Maps starts
to locate your device, and zooms in to your current
location. At the same time, Maps downloads the map of
your current location. The downloaded maps are
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