Nick / John,
I can rule out BT's "DAX" box which uses analogue carrier multiplex as I had
one here for a while with no RF problems on any band. It was USELESS for use
with a modem though so it's gone now!
73, Dave G3YXM (again)
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
G4WHO
| 