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GPS (GLOBAL POSITIONING SYSTEM) NAVIGATION OUTLINE

BHE092066902T06

• GPS is a navigation system developed by the U.S. Department of Defence. The system has GPS satellites orbiting the earth at an altitude of approximately 21,000 km {13,000 miles}.

• There are at least five satellites over any point 24 hours a day.

• The navigation unit receives radio signals from these satellites and determines a vehicle's position.