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From: sparks@cpsc.ucalgary.ca (David Sparks)
Newsgroups: rec.autos,sci.electronics,misc.consumers
Subject: Re: Radar Detectors (Ka band)
Summary: Ka Band Radar
Keywords: radar, cops, Ka, X, K
Message-ID: <742@cs-spool.calgary.UUCP>
Date: 18 Feb 89 20:54:33 GMT
References: <603@icus.islp.ny.us> <7944@netnews.upenn.edu> <249@turbo.RAY.COM> <1580@anasaz.UUCP>
Sender: news@calgary.UUCP
Lines: 33

In article <1580@anasaz.UUCP>, john@anasaz.UUCP (John Moore) writes:
> In article <249@turbo.RAY.COM> kenneth@pebbles.ray.com writes:
> ]In article <7944@netnews.upenn.edu>, depolo@eniac.seas.upenn.edu (Jeff DePolo) writes:
> ]> The Ka detectors (currently only made by Bel) are
> ]> somewhat worthless for a number of reasons.  First of all, the design
> ]> of the photo radar unit makes it very difficult to detect.  The beam
> ]> that the radar uses is very narrow, and is angled in such a way that it
> ]> does not transmit down a lane of traffic, rather, at an angle across it.
> ]
> 
> ]enough warning to at least slow down......one of the few good things about
> ]this state (MA) is that most cars don't have front plates, and even if they
> ]did, the RMV won't tell the other state who you are anyway. (Not part of
> ]the DLC).
> 

The air force is currently using visors connected to light sensors.  This is
so when a nuclear blast occours, the visor is darkened so the pilot wont
be blinded.  This same technique can be used to defeat the multinova.  By
placing the material(I dont know what it is) over the liscence plate, and
connecting it to a Ka band Radar detector, the plate could be darkened in the
time it takes to darken(1/1000 s I believe).  This might be a little co$tly,
but so is a radar detector.

A company is selling some kind of cover for your front liscence plate that
distorts the plate enough that it cant be decoded by the police.  But the
police have been giving out tickets to people who have been using these,
so I wouldnt invest in one. (Note that these are completly different 
techniques, one distorts all the time, while the other blackens only when
Ka radar is detected)


	sparks@cpsc.UCalgary.CA