Join Date: Feb 2010
Location: Narragansett Bay
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Re: Phones Apps
.....The phone or tablet "knows" the location of the cell tower it is connected to as part of network interaction (thus no data) and uses that as a seed to speed up the GPS position determination. It still works offshore, well out of cell phone range. It just takes longer to get a position solution.
To be clear, this is only for the initial fix, as the device would know which satellites it should be looking for. Otherwise, it just takes a few more seconds to figure it out. Thereafter, it works just as fast, with or without.
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