Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!pt.cs.cmu.edu!andrew.cmu.edu!ra1d+
From: ra1d+@andrew.cmu.edu (Robert L. Armitage)
Newsgroups: sci.electronics
Subject: Re: Descramble Cable Using Filter?
Message-ID: <UaWF1cW00WBKQ1Ulpw@andrew.cmu.edu>
Date: 27 Jun 90 20:00:40 GMT
References: <3525@umbc3.UMBC.EDU>
Organization: Carnegie Mellon, Pittsburgh, PA
Lines: 16
In-Reply-To: <3525@umbc3.UMBC.EDU>

yhu@umbc5.umbc.edu.UUCP (Mr. Ying Hu) asks:

>I have seen different type of descrambler of cable signal, but have no
>idea how the filter works. Anyone knows about connecting a filter to
>the cable and descramble the signal? Any article talking about that. It
>seems the filter knows not to filter when the signal is not scrambled.

I thought they just added a "noise" signal that a simple
band-pass filter could eliminate.

I'm sure if I'm wrong, some one will "enlighten" us .....    :-)

Buz..
Rob Armitage  Carnegie Mellon University   Pittsburgh, PA
Internet:  ra1d+@andrew.cmu.edu       BITnet:   ra1d+@andrew
UUCP:  ...!{ucbvax,harvard}!andrew.cmu.edu!ra1d+