🚀 go-pugleaf

In article <1990Aug15.112532.17516@ariel.unm.edu> ee5391aa@hydra.unm.edu (Duke McMullan n5gax) writes:
>
>Hmmm. Mark, I'd think it would backfire, since the radar will sense the
>_largest_ doppler shift it finds. In any event, shielding the rest of the
>car to have a significantly less bright reflection than the reflectors would
>be a major nuisance. However, I don't _think_ there's anything unlawful about
>it per. se.

Most every radar gun will display the _strongest_ echo, not the one with
the largest shift.  This is after being filtered through a bandpass filter.
Most radar guns will filter out post-mixing signals that would yield
a reading of less than approximately 20 MPH and more than 99 or 199 MPH,
depending on the model of radar gun.

If it was the case that the gun would display the signal with the largest
shift (i.e. the fastest car in the beam), target identification would be 
impossible if there was more than one car in the beam.  Obviously the
"strongest signal" method isn't foolproof either, but that's another story.

								--- Jeff
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Jeff DePolo  N3HBZ             Twisted Pair: (215) 386-7199                  
depolo@eniac.seas.upenn.edu    RF: 146.685- 442.70+ 144.455s (Philadelphia)  
University of Pennsylvania     Carrier Pigeon: 420 S. 42nd St. Phila PA 19104