🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.electronics
Article #9084

reception problem - need help (cable and local channels)

#9084
From: Crash Gordon
Date: Wed, 19 Dec 1990 10:55
23 lines
1654 bytes
>Author: [Robert Chao]
>I've been having a problem with cable reception:on local channels, there
>are slight ghosts and a "bar" about 3" wide near the right of the 20"screen.

The bar is a classic symptom of reflections on your cable.  Check every
connector in the system; somewhere something's not quite right.  Also look
for sharp bends in the cable.  (Radius should be at least six inches!)

Cable companies don't necessarily use the highest-quality connectors, tools,
and/or personnel :-)  I've seen three situations which had the ghost/bar
syndrome:  In two of them the connector was poorly crimped at the back of
the TV set, and in the third case the bad connector was at the wall jack.

A quick-and-dirty fix  (which may or may not work) is to put an attenuator
just before the cable hits your video equipment.  This _may_ drop the
reflections below your detector threshold, but leave the signal OK.  The
best way to solve the problem is to find where the reflections are coming
from.  (Maybe there's a piece of furniture on the cable?)

-----------------------------------------------------
Gordon S. Hlavenka            cgordon@vpnet.chi.il.us
Disclaimer:                Yeah, I said it.  So what?
Technical Details
Message-ID: <276f1fe8-669.1sci.electronics-1@vpnet.chi.il.us>
Path: arc1-ca.pugleaf.net!utzoo!attcan!telly!problem!compus!lethe!torsqnt!news-server.csri.toronto.edu!rutgers!att!linac!tellab5!laidbak!obdient!vpnet!cgordon
References: <22229@well.sf.ca.us>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!attcan!telly!problem!compus!lethe!torsqnt!news-server.csri.toronto.edu!rutgers!att!linac!tellab5!laidbak!obdient!vpnet!cgordon
From: cgordon@vpnet.chi.il.us (Crash Gordon)
Newsgroups: sci.electronics
Subject: reception problem - need help (cable and local channels)
Message-ID: <276f1fe8-669.1sci.electronics-1@vpnet.chi.il.us>
Date: 19 Dec 90 10:55:03 GMT
References: <22229@well.sf.ca.us>
Lines: 23