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Article #14574Re: police laser radar
From: Wayne Smith
Date: Mon, 16 Nov 1992 20:51
Date: Mon, 16 Nov 1992 20:51
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In article <1992Nov16.164531.2036@phx.mcd.mot.com> schuch@phx.mcd.mot.com (John Schuch) writes: >>Does anyone know what fequencies the police are using for their speed >>detecting lasers? >> > >My guess would be about 1.5E+11 Hz > >:-) >John But seriously, if Lidar detection is as difficult as it seems to be (thanks to the way its used; quick and close), could an incoherent but strong IR source (heat lamps?) interfere with the readings, or would you need a laser IR source of your own, pointing back?
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!utcsri!torn!newshost.uwo.ca!valve.heart.rri.uwo.ca!wlsmith From: wlsmith@valve.heart.rri.uwo.ca (Wayne Smith) Subject: Re: police laser radar Organization: The John P. Robarts Research Institute, London, Ontario Distribution: usa Date: Mon, 16 Nov 1992 20:51:42 GMT Message-ID: <1992Nov16.205142.28519@julian.uwo.ca> References: <1992Nov12.225737.21262@rtsg.mot.com> <1992Nov16.164531.2036@phx.mcd.mot.com> Sender: news@julian.uwo.ca (USENET News System) Nntp-Posting-Host: valve.heart.rri.uwo.ca Lines: 13