NJS@IBM.COM (Nicholas Simicich) (08/23/87)
Someone who lives in or near Endicott, New York, is having the following trouble with their home dial in terminal. The terminal is a PC on a call back system--thus, the terminal is not always the originator of the noisy call, but may be, instead, in answer mode. The noise seems to occur no matter who is the originator. I believe that they are using 212A type modems. I'd appreciate a direct response as well as a copy to the net if your response is interesting (which it is, of course) as I'm a couple of months behind in my digest reading :-). -=-=-=- I get a consistent, periodic (once every 2.1 seconds, I timed it) one byte (X'7B' or X'FB'--not sure exactly which) inbound-only noise when talking to PCTERM (an internal call back system), a local BBS, and a university using either an internal package, PROCOMM 2.4.2, and MS-Kermit and anything else I could test on. Some connections are clear and remain clear (the one session which started clean and became dirty was explained by the Deposit Telephone Co. as a NY Telephone line-configuration exercise one weekend). The dirty ones stay dirty and it's impossible to do any work. I tried another modem--no luck. The Telephone Co. is stymied. Ideas? I've also been assured that there are no powerful radars nearby, etc. I've used a pure vanilla PC DOS system with the same results. The Deposit phone company claims that my exchange, 693, is fairly modern, and that the microwave circuit is not the problem. -=-=-=- Nick Simicich, NJS@IBM.COM, or, for bitnet, NJS at YKTVMX Collect:(all I know about the problem is above) (914) 737-1908 Contents: 100% personal opinion, sugar, salt, High fructose corn syrup...
billw@ncoast.UUCP (09/03/87)
A similar thing happened to me recurringly about two years ago. Any time I
was establishing a connection over regular phone lines I got periodic bursts
of line noise, once every couple seconds. I eventually diagnosed the problem
as being caused by an electric fence generator that was right next to my phone
line. (It was a type that sends a current through the wire in pulses, rather
than continuously.)
The fence is gone, and I've had no similar problems since.
--
Bill Wisner
..sun!daslink![DCUNSN]MAX::WABE ..{cbosgd,decvax}!hal!ncoast!billw
"An it harms none, do what thou will." -- The Wiccan Rede
Everything in this message could be wrong.