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Thread ID: 86288 2008-01-11 02:22:00 How does a GPS tell a car's speed? lance4k (4644) PC World Chat
Post ID Timestamp Content User
629401 2008-01-11 02:22:00 How does a GPS tell a car's speed? I have seen some in-car GPS units that can tell a car's speed. How is this? Is the GPS hooked up to the speedometer?

And if you buy a portable handheld GPS, can it tell your car's speed?
lance4k (4644)
629402 2008-01-11 03:23:00 No, measurement between two set points divided by the time taken to reach point B from A SolMiester (139)
629403 2008-01-11 03:47:00 No, it measures the distance that you've traveled and then divides it by the time it took you to give you your speed ie:

Distance/Time = Speed
beeswax34 (63)
629404 2008-01-11 04:27:00 You bet it can tell the speed of the vehicle its just time and distance.
One of my customers fired a truck driver because they clocked him at 120 kph southbound down Bombay hills. Think of it as a high tech stopwatch over a known distance.
If you are going to commit a crime in you car remember to turn your gps off.
C1
chicken one (6501)
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