Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site amdahl.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!decwrl!sun!amdahl!dwl10 From: dwl10@amdahl.UUCP (Dave Lowrey) Newsgroups: net.audio,net.video Subject: Re: Video connecting Cables Message-ID: <897@amdahl.UUCP> Date: Wed, 9-Jan-85 09:05:52 EST Article-I.D.: amdahl.897 Posted: Wed Jan 9 09:05:52 1985 Date-Received: Sat, 12-Jan-85 06:35:40 EST References: <117@lcuxc.UUCP> <1466@ritcv.UUCP> Organization: Amdahl Corporation, Columbia MD Lines: 38 Xref: watmath net.audio:3770 net.video:878 > I just had a surprising experience. I bought a new TV, and saw that there was > a slight duplicate shadow on each one of my local stations. (My cable company > foolishly retransmits all local VHF stations on the identical channel -- does > ANYone else do that?) > > I then replaced my rather nice-looking 75ohm cable (I got it with my VCR; it > has quick-disconnect F-connectors) with another shoddy-looking one that my > cable company had given me, and voila', the problem disappeared!! > Definately, beware of any of the "flexible" 75 ohm cables that you get with your vcr/disk. The shielding and the dielectric thickness are marginal at best. I think every cable company that I have ever dealt with has re-broadcast local channels on the same cable channel. Shoddy cables will pick up both the cable-tv signal and the regular broadcast signal, producing the above mentioned ghosts. I also avoid quick-connect cables. Thew will inevitably work loose. When the guy from the cable company installed my hookup, I asked him for some extra cable and connectors. He left me 100 feet of cable and 16 F connectors (being a contractor, he didn't give a shit.). I then made my own cables (at the exact required length). If worst comes to worst, go to radio shack. But be carefull, there are two types of F connectors, one for RG-59, and one for RG-56 (different dielectric thickness). The moral of the story is.....If you are having cable-tv interference problems, suspect your cables! -- ----------------------------------------------------------------------- Dave Lowrey "GORT...Klatu borada niktow" ...!{nsc,sun,hplabs,ihnp4}!amdahl!dwl10 [ The opinions expressedbe those of the author and not necessarily those of his most eminent employer. ]