Nokia 002Q942 User Manual - Page 73
Positioning (GPS), About GPS, Assisted GPS (A-GPS)
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Positioning (GPS) Positioning (GPS) You can use applications such as GPS data to find out your Different positioning methods can be enabled or disabled location, or measure distances and coordinates. These in positioning settings. applications require a GPS connection. About GPS Assisted GPS (A-GPS) Your device also supports assisted GPS (A-GPS). The coordinates in the GPS are expressed using the international WGS-84 coordinate system. The availability of the coordinates may vary by region. 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 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. Radionavigation Plan. Accuracy can also be affected by Your device is preconfigured to use the Nokia A-GPS poor satellite geometry. Availability and quality of GPS service, if no service provider-specific A-GPS settings are signals may be affected by your location, buildings, available. The assistance data is retrieved from the Nokia natural obstacles, and weather conditions. GPS signals A-GPS service server only when needed. may not be available inside buildings or underground and may be impaired by materials such as concrete and metal. To disable the A-GPS service, select Menu > Applications > GPS > GPS data and Options > GPS should not be used for precise location measurement, Positioning settings > Positioning methods > and you should never rely solely on location data from the Assisted GPS > Disable. GPS receiver and cellular radio networks for positioning or navigation. You must have an internet access point defined in the device to retrieve assistance data from the Nokia A-GPS The trip meter has limited accuracy, and rounding errors service over a packet data connection. The access point for may occur. Accuracy can also be affected by availability A-GPS can be defined in positioning settings. A wireless 73 and quality of GPS signals. LAN (WLAN) access point cannot be used for this service.