Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site kitc.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!whuxlm!spuxll!kitc!jtb From: jtb@kitc.UUCP (J. Burgess) Newsgroups: net.dcom,net.video Subject: Eavesdropping from TV "dish" ??? Message-ID: <171@kitc.UUCP> Date: Thu, 22-Aug-85 12:57:31 EDT Article-I.D.: kitc.171 Posted: Thu Aug 22 12:57:31 1985 Date-Received: Sat, 24-Aug-85 17:25:59 EDT Distribution: net Organization: my terminal @ So. Plainfield @ ATT-IS @ USA @ ... Lines: 38 Keywords: TV satellite receivers, satellite security Xref: watmath net.dcom:1193 net.video:1412 The following is excerpted from <29425@lanl.ARPA>, in net.kids. (the discussion was about TVs. He began by saying he has a satellite receiver as his TV feed.) > ... Any of the 30,000 people with >satellite receivers can listen to either side of almost every long distance >phone call ( *NOW* ). With a scanner they could get both sides. > Dave Wade Is this true? I thought that a) TV and phone signals would be transmitted over different bands, b) phone signals were time-division and frequency-division multiplexed, and/or c) digitized. Are all 3 of my assumptions wrong; i.e., phone conversations are transmitted "clear channel" so that you don't need any special hardware? Or does your basic satellite down-converter (I think that's what they're called) do that sort of stuff? What is the "scanner" he's talking about? Is it some sort of computerized demux? Now, I realize it is probably possible to buy the equipment to really do what he's talking about. How much would it cost? Or how much to build? Is anybody doing anything about it? (like encryption or what?) PS don't post any proprietary info in responses! -- John Burgess ATT-IS Labs, So. Plainfield NJ (HP 1C-221) {most Action Central sites}!kitc!jtb (201) 561-7100 x2481 (8-259-2481)