Article View: sci.electronics
Article #9215Re: Cable descramblers.
From: Avatar
Date: Mon, 31 Dec 1990 18:26
Date: Mon, 31 Dec 1990 18:26
46 lines
2865 bytes
2865 bytes
In article <40170@ucbvax.BERKELEY.EDU> pous@janus.Berkeley.EDU (Rafael Pous) writes:
+I have a couple of questions about the cable TV descramblers advertised in
+the back of electronics magazines.
+
Yeah, you and every other 5th person to come by this froop! ;-)
+1. Are they ilegal, or they use some loophole in the law such as
+ freedom to receive electromagnetic waves?
They are ILLEGAL! If you are caught using such a device to circumvent
the nominal charges for video entertainment it could cost you some $$,
like $500 for a first offense in most states. It's a low probability, but
why bother?
+
+2. Do they work? I am not familiar with how the cable companies scramble
+ their signal, or wether all companies do it the same way.
+
Most of these units re-sync the picture framing, by adding a whole set of
horiz sync pulses. The audio is normally demodulated from a seperate
sub-carrier adjacent to the video signal, but not in the usual TV audio
trap region. Some units are more exotic, some utilize keys, cyphers, and
an algorithm that descrambles the signal using DSP technology - not a
weekend project for beginners!
+In other words, I am trying to find out wether it is worth buying one or not.
+Please, e-mail or post your answer. Thank you,
+ Rafael.
Unless you're out to begin a path of technical understanding about the
subject, I'd suggest you just forget it. Buy the damn service and avoid
the hassles altogether. Additionally some of these ripoff companies will
send you a bunch of junk parts, sketchy documentation and little or no
recourse should you fail to produce a working device. Those that sell
complete units will do so without warrantee and under the banner of
"surplus electronics"...this means if the unit is detected and you are
busted - only YOU pay a fine/go to jail!
If you are (or anyone is) serious about studying electronics at home,
these are NOT the kinds of projects to start with!
-Avatar-> (aka: Erik K. Sorgatz) KB6LUY +-------------------------+
Citicorp(+)TTI *----------> panic trap; type = N+1 *
3100 Ocean Park Blvd. Santa Monica, CA 90405 +-------------------------+
{csun,philabs,psivax,pyramid,quad1,rdlvax,retix}!ttidca!sorgatz **
(OPINIONS EXPRESSED DO NOT REFLECT THE VIEWS OF CITICORP OR ITS MANAGEMENT!)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!agate!linus!philabs!ttidca!sorgatz From: sorgatz@ttidca.TTI.COM ( Avatar) Newsgroups: sci.electronics Subject: Re: Cable descramblers. Summary: FAQ! BFD! Keywords: ripoff TV boxes...AGAIN??!! Message-ID: <22274@ttidca.TTI.COM> Date: 31 Dec 90 18:26:02 GMT References: <40170@ucbvax.BERKELEY.EDU> Organization: Citicorp/TTI, Santa Monica Lines: 46