Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!usc!apple!bionet!hayes.fai.alaska.edu!accuvax.nwu.edu!nucsrl!telecom-request From: john@bovine.ati.com (John Higdon) Newsgroups: comp.dcom.telecom Subject: Re: Annoying Cross Talk Problem, HELP! Message-ID: <12254@accuvax.nwu.edu> Date: 17 Sep 90 07:21:03 GMT Sender: news@accuvax.nwu.edu Reply-To: John Higdon Organization: Green Hills and Cows Lines: 32 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 10, Issue 653, Message 8 of 9 On Sep 16 at 23:01, "W.L. Ware" writes: > I've got an annoying situation on my hands. All four of my incoming > phone lines suffer from intermittent cross talk. It seems to be worse > when it is wet outside, but that is definitely not always the case. First, disconnect the telco circuits at the point of demark. Using a buttset or telephone with clip leads dial up a silent line on one of the lines (or call someone and tell them to be very quiet), then make a call on another with your modem (such that it connects with another) and listen for crosstalk. Do this with all appropriate combinations of lines. If you hear no crosstalk, then you may have to rewire your home with twisted pair. The fact that you measure infinite resistance between conductors points to inductive or capacitive coupling between circuits, which is what twisted pair is designed to prevent. Cleaning up your "terminal" might help also, although the rat's nest in my garage has never caused any trouble. If you hear crosstalk on the naked telco circuits then get MA back out and demonstrate. If that doesn't work, you may be forced to use my patented "Ultimate Solution". Order four new lines. When they are in and working, have the old ones disconnected. Update numbers as desired. I have had to use this approach twice in the last thirty years. John Higdon | P. O. Box 7648 | +1 408 723 1395 john@bovine.ati.com | San Jose, CA 95150 | M o o !