Nokia E52 User Manual page 88

88 Travelling
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 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 internet access point when GPS is used for the first time.
Hold your device correctly
The GPS receiver is located on the back of the device. When using the receiver, make
sure that you do not cover the antenna with your hand.