home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.electronics
- Path: 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
-
- 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?
-