Quote:
Originally Posted by Tcoat
How do you know they are "fairly accurate"?
They are not even remotely close to what the cops use.
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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.