Quote:
Originally Posted by Borchert97
They literally run off of radar measurements, the same exact stuff that is used in radar guns? It's literally just a radar gun in a sign. And as I said, accurate or not, it IS the number the cops will get, which I believe is accurate, but whether it is or not, it's the number the cops will get so it's the number I'll adjust to.
Also, a quick Google search on radar speed signs gives a lot of testaments to them being pretty accurate, much more accurate than a dial on a car that's measuring drivetrain rotation, and it'll only be accurate if you have the appropriate tire size to correctly match the drivetrain rotation being measured.
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Funny I can find just as many things that say they are not accurate. Those signs are NOT the same level of radar the police use, are just sort of aimed in the general direction of traffic, are not calibrated on a regular basis, and get bounced around on little trailers. Sure some may be accurate but other can be way off.
I really don't get why everybody is so sure the car speedos are not accurate and everything else is. If you have stock size tires the car will be very close to spot on. If you have 2 inch bigger it will be off by maybe 5 mph at the most but at least it will be consistently off the same amount and not up and down like those signs will register.