"3). Be drive-able in remote areas where conventional GPS signals cannot or do not reach (i.e. parts of Nevada, Utah, Wyoming, Texas, Colorado, Oregon, etc.)"
I have never been outside in any part of any country, that I was not able to pick up a GPS signal of 30' or better for the last 20 years. Could you give a specific example of an area in those states that do not work with GPS? Cell phone, yes many times, but never with a GPS.
Steve
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