Article View: sci.electronics
Article #10150Re: Audio Jamming
From: terry bohning
Date: Fri, 15 Feb 1991 03:13
Date: Fri, 15 Feb 1991 03:13
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1348 bytes
robf@mcs213k.cs.umr.edu (Rob Fugina) writes: > In article <1991Feb13.224108.2823432@locus.com> dana@locus.com (Dana H. Myers > >technically, this is illegal. Emitting a powerful signal on 10.7 Mhz is > >*especially* illegal. > > > > You've made me curious...why do you say *especially* illegal? Of what > significance is that frequency? > The significance is that this is the Intermediate Frequency of virtually every consumer broadcast band superheterodyne FM receiver in existence, If you broadcast on 10.7 MHz with enough power to hit the IF amps in the receiver, you will capture it no matter which station it's tuned to. I seriously doubt that it is any more illegal according to written law to xmit on 10.7 MHz than 1 MHz, but the fact is it create a lot more interference. The IF freq for consumer AM receivers (if anyone still cares) is 455 kHz.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!ames!think.com!spool.mu.edu!sdd.hp.com!wuarchive!rex!uflorida!cs.fau.edu!terryb From: terryb.bbs@shark.cs.fau.edu (terry bohning) Newsgroups: sci.electronics Subject: Re: Audio Jamming Message-ID: <Z64DX5w163w@shark.cs.fau.edu> Date: 15 Feb 91 03:13:58 GMT References: <2173@umriscc.isc.umr.edu> Sender: bbs@cs.fau.edu (Waffle BBS) Organization: Florida Atlantic University Lines: 20