Article View: sci.electronics
Article #10085Re: POLICE hand-held RADAR units
From: Richard S D'Ippolito
Date: Tue, 12 Feb 1991 17:46
Date: Tue, 12 Feb 1991 17:46
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In article <1991Feb12.035201.16098@nntp-server.caltech.edu> Fernando J. Selman writes: >Yes, I did get a ticket. It was a 71 on 55 mph freeway. Because that >extra 1 mph is so painfull I would like to know how reliable it is. >Somewhere in the ticket it is written "Speeding. K-15". So I assume >it was a K-band gunn. Because these devices actually compare the speed >of the car with the speed of light, it would imply an accuracy of >1 part in a billion to be able to measure that extra 1 mph. Because >of temperature, and humidity effects I would doubt such a reading (it >was made in Honolulu). Anyone with advice? References? Should I contend >this ticket? Thanks, > - Fernando Maybe, but not on the basis of your technical knowledge of radar operation! I suggest "Introduction to Airborne Radar" by Stimson, published by Hughes Aircraft Company, Radar Systems Group, as a primer on radar. Cheers, Rich
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!ub!uhura.cc.rochester.edu!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!fs7.ece.cmu.edu!sei!rsdReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!ub!uhura.cc.rochester.edu!rochester!pt.cs.cmu.edu!o.gp.cs.cmu.edu!fs7.ece.cmu.edu!sei!rsd From: rsd@sei.cmu.edu (Richard S D'Ippolito) Newsgroups: sci.electronics Subject: Re: POLICE hand-held RADAR units Message-ID: <12257@as0c.sei.cmu.edu> Date: 12 Feb 91 17:46:34 GMT References: <1991Feb12.035201.16098@nntp-server.caltech.edu> Reply-To: rsd@sei.cmu.edu (Richard S D'Ippolito) Organization: Software Engineering Institute, Pittsburgh, PA Lines: 23