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GPS in phones – basic informations

Global Positioning System (GPS) – GPS- NAVSTAR properly (Global Positioning System – NAVigation Signal Timing And Ranging ) – one of the satellite navigation systems , created by the U.S. Department of Defense , including its coverage over the entire globe. The system consists of three segments : the space segment – 31 satellites orbiting the Earth at an average orbit , ground segment – control and monitoring stations on the ground and user segment – signal receivers . The purpose of the system is to provide the user with information about its location and to facilitate navigation in the area.

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