Accused speeder to cops: My GPS proves your radar gun is wrong Posted: 12 months ago by AutumnLotus
GPS-based tracking devices don't just help you figure out where you are and where you're going, they might also help you avoid a speeding ticket. Shaun Malone of California is contesting a speeding ticket in that state by arguing that his GPS-based tracking system shows that the officer's radar gun was wrong.
Comments: 4 Score: [-] 247 [+].
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Posted: 12 months ago by sykeo56:
I've actually used my GPS to test the speedometers in a few cars. I find that usually the speedometer is a few mph over the actual speed, but it varies from car to car, and also varies depending on how fast you are going. My sentra's speedometer is off by as much as 4-5 mph when I'm above 60.
Score: [-] 43 [+].
Posted: 12 months ago by larknet:
If the radar gun that was used by the police officer was not calibrated within a specific period of time or is used improperly it will give a false reading. My GPS has a feature to warn me if I am over the speed limit, I don't use it but it is there.
Score: [-] 45 [+].
Posted: 12 months ago by bunnysutra:
I love the technology, but that really takes all the fun out of being a kid!!
Score: [-] 45 [+].
Posted: 12 months ago by pocksucket:
I was wondering about this only today (although the other way around - whether my satnav could be used to prove I was speeding).
I'm fairly certain that car manufacturers deliberately set the speedo so that it reports a higher speed that you are travelling. Not sure if this is for safety, or to give the impression your car is faster than you think.
According to my satnav, at 70 mine is out by 8mph.
Score: [-] 28 [+].
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