Re: Radar Gun Fundamentals

On Fri, 27 Oct 2006 13:45:43 +1000, Clifford Heath
<no.spam@xxxxxxxxxx> Gave us:

Complete crap. Parallax error is error in measured speed due to the
radar looking out from the side of the road at an angle.

Wrong. Nice try though. In auto radars, it is where the radar
acquires the fastest article in its field of view, but the cop
incorrectly chooses the wrong vehicle as being the vehicle that was
traveling at the clocked speed. It is the very reason that radars are
successfully fought in the courts of many states. Cop pops a radar
scan down twenty cars on a highway, but picks you as the one that was
pegging the radar gun. Lots of room for human error there.

Looking down a road on an angle changes the operation of the device
not one iota. It takes a reading in its FOV rather quickly, and it
does it well, regardless of whether you are approaching it, receeding
from it, or crossing its field.
.

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