Introduction to Running with GPS
People around the world are beginning to realize the importance of physical training and good health...
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Who Uses Personal GPS Devices
Know Where You Kids Are With A GPS Tracking Device
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The Advancements of Mobile GPS Technology
A GPS unit really only requires a radio emitter and a clock to work. The emitter sends the time reading of the clock to a overhead satellite. Then the satellite calculates the amount of time that it took for the radio signal to reach it, and then the satellite calculates the distance from this information.
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