GPS Sat Nav

GPS Sat Nav

Description: The Global Positioning System, originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force. A sat nav (short for satellite navigation) is really some very special software that uses the GPS signal. It takes the co-ordinates provided by the GPS and combines that with a comprehensive map. Then, given a destination, the sat nav software will calculate a route for you to your destination. As the GPS signal is constantly updated, the sat nav can give you step-by-step instructions on where you are and when you need to make a turn. TomTom and Garmin are probably two of the best known brands when it comes to GPS and sat nav equipment.

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