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How does Satellite Navigation work?

April 26, 2017accessories amplifiers car audio CD changer Cheap dvd player navigation satellite

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How does Satellite Navigation work?

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SatNav is a system that comprises of 2 elements, a GPS data receiver and a CPU/display unit. The receiver gets information from orbiting GPS navigational satellites and communicates it to the CPU/display unit. The unit is then able to find its exact location on the planet by comparing signals from various satellites. Using this information, the unit can then pinpoint your exact location on a detailed map, of the country you are in. Most units now have POI’s (Points of Interest). This feature displays things like garages, restaurants, airport and ferries etc. on the map allowing you to navigate directly to the nearest Burger King for lunch. You can also add your own POI’s of your favourite places. One POI that is very popular is the location of all the speed camera and accident black spot locations, giving advanced warning of danger ahead. Fitting The units can be fitted into the car in a number of ways but the 2 most popular ways for portable Navigation systems are with a mounting brac