Nokia 002G6Q3 User Guide - Page 35
Positioning (GPS), About GPS, Assisted GPS (A-GPS)
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Positioning (GPS) You can use applications such as Maps and GPS data to find out your location, or measure distances and coordinates. These applications require a GPS connection. For information on position requests, landmarks, and GPS data, see the extended user guide on the product support pages of the Nokia website. About GPS 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. Your device has an internal GPS receiver. A GPS terminal 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 metres. The coordinates in the GPS are expressed in degrees and decimal degrees format using the international 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. 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. To enable or disable different positioning methods, such as Bluetooth GPS, press , and select Tools > Settings > General > Positioning > Positioning methods. Assisted GPS (A-GPS) Your device also supports Assisted GPS (A-GPS). A-GPS is a network service. 34 © 2008 Nokia. All rights reserved.