Jeff SandersGarmin GPS Navigation Systems http://www.GpsFrontier.com 04/05/09

GPS Navigation Systems have come a long way

Gps systems have come a long way since they were first designed for the US millitary. The first signal from NAVSTAR 1 was received on Feb. 22, 1978. NAVSTAR 1 was launched from Vandenberg Air Force Base in California and [...]