Path: utzoo!telecom-request Date: Sat, 25 May 91 01:37 PDT From: John Higdon Newsgroups: comp.dcom.telecom Subject: Re: Modem Isolation Device Needed Reply-To: John Higdon Message-ID: Organization: Green Hills and Cows Sender: Telecom@eecs.nwu.edu Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 397, Message 5 of 6 Lines: 16 Ken Mandelberg writes: > Is there an isolating device I can put between the modem and phone > line that would isolate the modem (and hum) when the modem is not off > hook. Any modem complying with Part 68 of the FCC R&R will not cause that problem. The hum is caused by an imbalance and/or leakage to ground within the modem. It should be repaired or replaced. Band-Aids should not be used in this case. John Higdon | P. O. Box 7648 | +1 408 723 1395 john@zygot.ati.com | San Jose, CA 95150 | M o o !