Nokia Wireless GPS Module LD-3W User Guide - Page 5
Introduction, Global positioning system (GPS) - wireless gps receiver
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1. Introduction Introduction With the Nokia Wireless GPS Module, you can determine, with a compatible geolocation application, your current position and direction easily. The GPS module is a battery-operated device that uses Bluetooth wireless technology to communicate positioning information to compatible mobile phones, PCs, PDAs, and other devices. To use the GPS module, you need a compatible software application on the device that you connect to it. Read this user guide carefully before using the GPS module. Check also http://www.nokia.com/support or your local Nokia Web site for the latest version of this guide, additional information, downloads, and services related to your Nokia product. ■ Global positioning system (GPS) The GPS (global positioning system) is a worldwide satellite-based radio navigation system. A GPS terminal can calculate its location to an accuracy of 10 meters. The accuracy depends on the number of satellites, the signals of which the GPS module receives. In optimal conditions, the accuracy may be within a few meters. The antenna of the GPS module is located under the Nokia logo, and it should face upwards. Some car windshields and windows may contain metal, which may block or weaken the satellite signals. 5