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For information on the various satellite navigation systems available: GPS (United States) GLONASS (Russia) Galileo (European Union) Compass/ Beidou (C

by kqr2 14y ago

For information on the various satellite navigation systems available: GPS (United States) GLONASS (Russia) Galileo (European Union) Compass/ Beidou (China) http://en.wikipedia.org/wiki/Satellite_navigation http://en.wikipedia.org/wiki/Satellite_navigation