Join Date: Jul 2007
Location: Westchester, NY
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Re: GPS determined speed
I recently heard that automobile speedometers are changing over to GPS from physical sensors on the car.
I suspect that means GPS is pretty accurate.
at best a car speedometer show accuracy/precision to integers.
Most boat speedo do .1 knot. My B&G dies .01
Precision is perhaps a better word... GPS appears to be only precise to .1 knots.
pay attention... someone's life depends on it