On Mon, 14 Jun 1999 15:12:16 +0100, you wrote:

To briefly answer a few points which were raised:
Yes, the poles where the noise peaked are definately telephone poles and
NOT power-line poles

Just a wild idea.

Have any of your neighbours had 'home highway' (the domestic brand of ISDN
installed).

BT also have a wonderful little pair of boxes which duplexes two BT lines onto
one physical pair of cables. If someone near you has had one fitted depending on
the technology used this could increase the noise on the phone lines.

Have you looked at the modulation on the noise in a reasonable bandwidth? if it
is 50Hz or harmonic related then it is something to do with distribution wiring
or appliances, if it is not mains synchronous then it is an appliance of some
sort.

Good luck

Back to lurk mode

Nick