🚀 go-pugleaf

In article <26b8be39-32e.2sci.electronics-1@vpnet.chi.il.us> cgordon@vpnet.chi.il.us (Gordon Hlavenka) writes:

   In Illinois, most police cars carry a Motorola receiver locked to the ISPERN
   frequency.  (A statewide emergency network.)  I have toyed with the idea of
   building an ISPERN detector; it would detect police _cars_, not the radar.

   ----------------------------------------------------------
   Gordon S. Hlavenka                 cgordon@vpnet.chi.il.us

Is this in anyway similar to the "CHiPs" detectors being sold?  The
description was vague, something about being able to detect the cars
because of the mobile repeater in the car.  The repeater is used to
allow a respectable range out of the walkys.  I infer that the
detector works by either detecting the LO or by kerchuncking the
mobile repeater.  Since a cop described the use of the detector as
being very illegal the kerchunking approach seems more likely.

Of course, under the evil ECPA of '86 maybe the LOs of police radios are
illegal to recieve...


Anybody know anything real?


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