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From: wendt@arizona.UUCP
Newsgroups: sci.electronics
Subject: Re: Communication over power lines - is it legal?
Message-ID: <1708@megaron.arizona.edu>
Date: Mon, 11-May-87 13:31:28 EDT
Article-I.D.: megaron.1708
Posted: Mon May 11 13:31:28 1987
Date-Received: Thu, 14-May-87 01:35:38 EDT
References: <3271@ece-csc.UUCP> <1286@ur-tut.UUCP>
Organization: U of Arizona CS Dept, Tucson
Lines: 11

In article <1286@ur-tut.UUCP>, alab@ur-tut.UUCP (Daniel F. Luna) writes:
> >My question is this:  Does the power company get upset if you
> >introduce a low-level (~1 volt peak-to-peak) high freq. (> 10 kHz)
> >onto their lines (interior to your home).

I wonder if Tempest rooms (isolated computer rooms for classified stuff)
typically include an isolation transformer to prevent transmitting
information back from the computer along the power line?

Alan W.
U of AZ Computer Science