9. Positioning (GPS)You can use applications such as Maps and GPS data to find out your location, or measuredistances and coordinates. These applications require a GPS connection.About GPSThe coordinates in the GPS are expressed in the degrees and decimal degrees formatusing 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 locationdata can be affected by adjustments to GPS satellites made by the United Statesgovernment and is subject to change with the United States Department of Defense civilGPS policy and the Federal Radionavigation Plan. Accuracy can also be affected by poorsatellite geometry. Availability and quality of GPS signals may be affected by yourlocation, buildings, natural obstacles, and weather conditions. The GPS receiver shouldonly be used outdoors to allow reception of GPS signals.Any GPS should not be used for precise location measurement, and you should neverrely solely on location data from the GPS receiver and cellular radio networks forpositioning or navigation.To enable or disable different positioning methods, select Menu > {No display_textmapping for 'qtn_apps_applications_grid.appshelldata', locale='en'} > Locationand Positioning > Positioning methods.Assisted GPS (A-GPS)Your device also supports Assisted GPS (A-GPS).A-GPS is a network 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 deviceis receiving signals from satellites.When you activate A-GPS, your device receives useful satellite information from anassistance data server over the cellular network. With the help of assisted data, yourdevice 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.You must have an internet access point defined in the device to retrieve assistance datafrom the Nokia A-GPS service over a packet data connection. To define an access pointfor A-GPS, select Menu > {No display_text mapping for'qtn_apps_applications_grid.appshelldata', locale='en'} > Location andPositioning > Positioning server > Access point. A wireless LAN (WLAN) accessPositioning (GPS)28CyanCyan MagentaMagenta YellowYellow BlackBlack