4. Navigator
Your device has an internal GPS receiver that receives low-
power radio signals from satellites, and measures the travel
time of the signals. From the travel time, the GPS receiver
can calculate its location to within a few meters. The
coordinates are expressed in degrees and decimal degrees
format using WGS-84 coordinate system.
The GPS receiver is located in the upper right corner of the
slide cover. When using the receiver, hold the device upright
in your hand with an orientation toward the sky.
Note that establishing a GPS connection may take several
minutes.
As availability of GPS related services depends on wireless environment and
systems, the services may not fuction in all environments at all times. In case of
sudden loss of GPS reception, press the Navigator key to restart the application.
Your device also supports Assisted GPS (A-GPS) service which helps determining
the location faster. It utilises packet data connection, and your network operator
may charge you for this according to your network subscription. Contact your
service provider for the correct internet access point and charges related to the
service.
Assisted GPS (A-GPS) is used to retrieve assistance data over a packet data connection,
which assists in calculating the coordinates of your current location when your device is
receiving signals from satellites.
Your device is preconfigured to use the Nokia A-GPS service if no service provider
specific A-GPS settings are available. The assistance data is retrieved from the
Nokia A-GPS service server only when needed.
When you start the GPS function for the first time, you need to define or select an
access point to take A-GPS into use. After this, A-GPS is used automatically when
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needed unless the A-GPS method is disabled. For example, the A-GPS service will
be contacted automatically if the integrated GPS has been switched off for more
than two hours.
To enable or disable different positioning methods, such as the A-GPS, select
Menu
>
Settings
>
Phone sett.
>
General
>
Positioning
>
Positioning methods
,
scroll to the positioning method, and select
Options
>
Enable
or
Disable
.
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.
Any GPS should not be used for precise location measurement, and you should never rely
solely on location data from the GPS receiver and cellular radio networks for positioning or
navigation.
Almost all digital cartography is inaccurate and incomplete to some extent. Never rely solely
on the cartography provided for use in this device.
If your device cannot find the satellite signal, consider the following:
• If you are indoors, go outdoors to receive a better signal.
• If you are outdoors, move to a more open space.
• Check that your hand does not cover the GPS antenna of your device.
• If the weather conditions are bad, in such a case the signal strength may also
be affected.
• Establishing a GPS connection may take several minutes.