You can find any number of adverts and claims via Google, which are
meaningless in themselves, but how about this successful prosecution:
http://www.guardian.co.uk/transport/Story/0,,2159745,00.html
I think you will find it is the reflected signal *plus* the additional
transponder signal that confuses the speed gun, it can't separate the two.
It needs to receive its own signal as well as be able to filter out all
background clutter to show an accurate reading, otherwise it would be
capable of displaying speeds for stationary vehicles (which I'm sure the
Police would love).
PaulH.
----- Original Message -----
> How would that work? Both light and RF travel pretty much at the speed of
> light. I would think the very minute delay in creating the proper Doppler
> shift and transmitting it would cause the original signal to get to the
> camera just before the "doctored" one. Is there any documentation of such
> a
> device working?
> -----Original Message-----
>
> There is also a transponder available
> which when it gets a 'hit' from a laser speed detector sends a signal back
> at a much higher velocity and preventing it from recording the vehicle
> speed.
_______________________________________________
Edit your replies
Mgs@autox.team.net
http://autox.team.net/mailman/listinfo/mgs
|