Article View: sci.electronics
Article #1341Re: Electronic sweeping and debugging equiptments
From: Harvey C. Dueck
Date: Mon, 28 Aug 1989 19:07
Date: Mon, 28 Aug 1989 19:07
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In article <1989Aug26.042754.9128@utzoo.uucp> henry@utzoo.uucp (Henry Spencer)
writes:
>In article <CMM.0.88.620075522.yj1@cunixa.cc.columbia.edu> yj1@CUNIXA.CC.COLUMBIA.EDU (y) writes:
>>Do you know any equiptment that can check whether the phone lines are
>>monitored or the rooms are bugged? Do you know any anti-spy techniques
>>in general?
...stuff about conversing in a (possibly) bugged room deleted
>The more background noise, the better.
If the listeners are reasonably sophisticated and can obtain a separate
recording of the 'background noise', then it is often a relatively
straightforward signal processing task for them to filter it out.
This means that recorded music, television and radio broadcasts are
effectively useless as background noise unless turned up loud enough to
saturate the recording equipment used by the listeners.
- harv
--
dueck@dvinci.usask.ca or ...!uunet!dvinci.usask.ca!dueck
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!ubc-cs!alberta!dvinci!dueck From: dueck@dvinci.USask.CA (Harvey C. Dueck) Newsgroups: sci.electronics Subject: Re: Electronic sweeping and debugging equiptments Message-ID: <2097@dvinci.USask.CA> Date: 28 Aug 89 19:07:26 GMT References: <CMM.0.88.620075522.yj1@cunixa.cc.columbia.edu> <1989Aug26.042754.9128@utzoo.uucp> Reply-To: dueck@dvinci.UUCP (Harvey C. Dueck) Organization: University of Saskatchewan, Saskatoon, Canada Lines: 21