GPS Instructional Material

GPS Instructional Material
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GPS (global positioning system) is a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver. Since some GPS units can be difficult to use, there are GPS instructional materials available to help you learn to use your new GPS unit.

By Reny N.
DVD GPSMAP 60/60CS Instructional

Awesome, made using my GPS easy.