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Tips on Buying Your First GPS Unit (28 Feb 2007)
An introduction to GPS technology, the various types of GPS systems on the market, and tips on choosing a unit that is right for you.

Location Sensitivity - Cell Phone GPS (28 Feb 2007)
This is basically a system to locate the handheld when making a call to 911. In the mid to late 1990's, many people got cell phones just for the emergency use of being able to call for help almost anywhere. The problem came up when statistics showed that almost 92% of all serious 911 calls, (where the person was just barely able to make the call), they either didn't know where they were or was unable to tell the 911 operator where they were, or they might not have been able to talk at all.

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