Article View: sci.electronics
Article #15932Re: Transmission line question
From: Gerald Vernon Nelson
Date: Mon, 21 Dec 1992 03:39
Date: Mon, 21 Dec 1992 03:39
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In <1992Dec15.202004.15878@ucsu.Colorado.EDU> barr@tramp.Colorado.EDU (BARR DOUG) writes: >Some specs I have call for ethernet coax to be grounded in one location >and one location only! I am wondering why this is. Antenna effects, >current loops or something else. Does anyone know why this is the case? Ground loops. If you grounded a piece of coax at two ends of a building, the grounds may not be at the same potential. If you check, you will find that the BNC connectors are not connected to the chassis of the P.C. The whole line is grounded at one point. Vern Nelson
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arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!sun-barr!olivea!charnel!sifon!newsflash.concordia.ca!mizar.cc.umanitoba.ca!vnelsonReferences:
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Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!cs.utexas.edu!sun-barr!olivea!charnel!sifon!newsflash.concordia.ca!mizar.cc.umanitoba.ca!vnelson From: vnelson@ccu.umanitoba.ca (Gerald Vernon Nelson) Newsgroups: sci.electronics Subject: Re: Transmission line question Message-ID: <BzLBIA.7vM@ccu.umanitoba.ca> Date: 21 Dec 92 03:39:46 GMT References: <1992Dec15.202004.15878@ucsu.Colorado.EDU> Sender: news@ccu.umanitoba.ca Organization: University of Manitoba, Winnipeg, Canada Lines: 14 Nntp-Posting-Host: ccu.umanitoba.ca