BG> Good trick!  Even radar units are not unbeatable either.  Have you ever

 BG> wondered why they're not used in wet weather?  Coz the water droplets on

 BG> the surface of the vehicle being checked present a greater (varying)

 BG> surface area to the doppler beam, and cause it to read high.  



 BG> Knowing this (as the coppers already do), if you ever pass through a radar

 BG> trap, and suspect that you may have been over the limit, immediately hit

 BG> your windscreen washers, so that by the time you are pulled over, your

 BG> windscreen is covered with water droplets, then argue that you weren't

 BG> speeding at all.



 BG> Caveat, I've never tried this, so you may need to be prepared to go to

 BG> court if the copper books you anyway (unlikely, I'd suggest), and you'd

 BG> then need to bone up on your doppler-shift theory in order to impress the

 BG> magistrate.



i'll remember that, may come in handy one day. perhaps you could ask

your copper mate a question that has puzzled me for some time. with the

sideways looking radar traps, how do they calibrate the angle that it is

set at to the road? as doppler can only measure the true radial

velocity, the speed measured will be lower than actual, and it will need

to massaged to give the true value. for this the angle of the beam to

the direction of travel is critical. 



 KR> i am reliably informed that there is a straight bit of road just 

 KR> south of gympie where twin cam corollas have been seen doing 

 KR> speeds in excess of 190k/h (from the tacho)   (:



 BG> I have also been reliably informed about this very same piece of road, by a

 BG> copper friend of mine who is still looking for this "lunatic
pommy bastard

 BG> with a Corolla and NSW plates".  |-)



why should that affect me? i am a lunatic ex-pommy bastard (an

australian by choice not by the location where my parents got randy (:

), and the vehicle in question had qld plates.



                        Keith

 



... Back up religiously - pray that the disk doesn't crash.



--- PPoint 1.88