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- Path: news.deltanet.com!usenet
- From: aa-2@deltanet.com@deltanet.com
- Newsgroups: misc.consumers.house,sci.electronics.misc,comp.dcom.modems
- Subject: Re: 60Hz buzz on phone line & modem problems
- Date: 5 Jan 1996 23:06:55 GMT
- Organization: Delta Internet Services, Anaheim, CA
- Message-ID: <4ckauf$f5b@news1.deltanet.com>
- References: <4cf1le$49d@guysmiley.blarg.net> <4ci0h9$jot@hpbs2500.boi.hp.com>
- Reply-To: aa-2@deltanet.com
- NNTP-Posting-Host: ana2079.deltanet.com
- X-Newsreader: IBM NewsReader/2 v1.2.5
-
- In <4ci0h9$jot@hpbs2500.boi.hp.com>, ahill@boi.hp.com (Andy Hill) writes:
- >dougrud@blarg.net (Doug Rudoff) wrote:
- >>My step-mom's house's phone line has a very loud 60 Hz buzz. Any
- >>suggestions on how to get rid of it?
- >>It affects modem connections. The 2400 baud modem she has on her
- >>computer system can connect, but when I use my Global Village
- >>Powerport Gold (14.4 kbaud) I have no luck connecting even when I set
- >>it to connect at 2400 baud.
- >>In lieu of fixing the buzz for the phone line are there any filters
- >>that will help the modem?
- >>
- >Can you narrow down where the noise is being induced?
- >
- >First off, I'd probably disconnect all lines inside the house from the
- >main box, and rig up a temporary connection to monitor the line
- >quality coming into the house. If you still hear the noise, then it's
- >time to bitch to the phone company.
- >
- >If it ain't coming in from outside, then connecting each line, one at
- >a time, while monitoring the noise should help narrow down the
- >problem. The problem may be due to a phone line being run parallel
- >to an power line for too long, or it may be that another appliance
- >(such as an answering machine, 120V-line-powered phone, or a modem) is
- >inducing the noise on the line. Connecting these up one at a time
- >should help narrow the problem down, if that's the case.
- >
- >
-
- This is good advice. But one other thing to check is the type of wiring
- used for the telephone jacks. It should be twisted pair for maximum
- resistance to induced voltages. If your inside wiring is red/green/yellow/
- black, it is not twisted pair, and it is much more susceptible to interference,
- especially on long wire runs.
-
-