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Path: utzoo!utcs!lsuc!pesnta!hplabs!hp-pcd!hp-dcde!perry
From: perry@hp-dcde.UUCP (perry)
Newsgroups: net.audio
Subject: Re: Defeating Dolby
Message-ID: <15100002@hp-dcde.UUCP>
Date: Tue, 12-Feb-85 15:50:00 EST
Article-I.D.: hp-dcde.15100002
Posted: Tue Feb 12 15:50:00 1985
Date-Received: Sun, 24-Feb-85 17:50:31 EST
References: <1063@opus.UUCP>
Organization: Hewlett-Packard - Fort Collins, CO
Lines: 12
Nf-ID: #R:opus:-106300:hp-dcde:15100002:000:603
Nf-From: hp-dcde!perry    Feb 21 12:50:00 1985

The electromagnetic interference (EMI) coming from your terminal is probably
a harmonic of some resonant frequency in you tape deck.  It looks like you got
quite a deal:  a tape deck that's also a radio receiver :-).  The EMI "soup"
is mainly caused by the video sweep circuit and to a lesser degree, the
terminal's internal clock circuits.

Over time, EMI causes the magnetic domains on tape (and floppies) to decay,
causing data loss.  I store all of my tapes inside my metal desk, as far away
from the terminal as possible.

Perry Scott, HP-FSD
...{allegra|ihnp4|decvax|ucbvax}!hplabs!hpfcla!perry-s