User Manual

underground and may be impaired by
materials such as concrete and metal.
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.
The trip meter has limited accuracy, and
rounding errors may occur. Accuracy can
also be affected by availability and
quality of GPS signals.
The coordinates in the GPS are
expressed using the international
WGS-84 coordinate system. The
availability of the coordinates may vary
by region.
Assisted GPS (A-GPS)
Your device also supports assisted GPS
(A-GPS).
A-GPS requires network support.
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.
When you activate A-GPS, your device
receives useful satellite information
from an assistance data server over the
cellular network. With the help of
assisted data, your device can obtain
the GPS position faster.
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.
To disable the A-GPS service, select
Menu > Applications >
Installations > GPS data and
Options > Positioning settings >
Positioning methods > Assisted
GPS > Options > Disable.
You must have an internet access point
defined in the device to retrieve
assistance data from the Nokia A-GPS
service over a packet data connection.
The access point for A-GPS can be
defined in positioning settings. A
wireless LAN (WLAN) access point
cannot be used for this service. Only a
packet data internet access point can be
used. Your device asks you to select the
Positioning (GPS) 97
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