Police Radar Counter-counter measures

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Article #22065

#22065

From: Michael Katzmann
Date: Mon, 29 Jan 1990 17:20

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This may be of interest: From the EE times Jan 22 1990.

Heterodyne sensors 'sniff' radar detectors
__________________________________________

Washington -- Canada is beginning to use a heterodyne-sensing system to
sniff out the possession and operation of police radar detectors, which
are illegal in some provinces. The heterodyne-sensing system detects the
high-frequency emissions produced by the lion's share of commercial radar
detectors. A low-power microwave Gunn diode oscillator in the antenna
cavity produces just enough microwave radiation (at 10.25 GHz and/or 26 GHz)
to be sensed by a police cruiser.


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Michael Katzmann
Broadcast Sports Technology.
2135 Espey Ct. #4
Crofton Md. 21114 USA

Ph: +1 301 721 5151

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!purdue!haven!mimsy!fe2o3!michael
From: michael@fe2o3.UUCP (Michael Katzmann)
Newsgroups: sci.electronics
Subject: Police Radar Counter-counter measures
Message-ID: <293@fe2o3.UUCP>
Date: 29 Jan 90 17:20:26 GMT
Organization: Rusty's BSD machine at home
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