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From: combstm@stat.appstate.edu
Newsgroups: comp.dcom.lans
Subject: Re: networking on cable TV systems
Message-ID: <149.2705d73f@stat.appstate.edu>
Date: 30 Sep 90 15:30:06 GMT
References: <6722@gaboon.UUCP>
Organization: Appalachian State University
Lines: 22

In article <6722@gaboon.UUCP>, asv@gaboon.UUCP (Stan Voket) writes:

> Some time ago I read that cable TV companies will sometimes sell/rent 
> surplus bandwidth on their lines for computer networking.  I'd like to 
> learn more about the concept and mechanics behind this.  
> 
> How does this work?
> 
We have expermiented with the local cablevision group in town to try to run
data over the cablevision broadband.  Our University also has all of its
buildings cabled on a mid-split broadband coax system, so we have lots of
experience in this.

It does not work well with cablevision.  The cable must be tuned almost to
perfection, with the db levels set properly to have a perfect signal.  Snow on
tv reception does not hurt the viewer appreciably, but "snow" on a data cable
spells error recovery and corrupted data.  We have installed point-to-point
lines and avoid the cablevision route.

- Terry               
  Bitnet:    COMBSTM@APPSTATE
  Internet:  COMBSTM@Conrad.Appstate.Edu