[UK-CONTEST] 80m and ADSL

[Graham Diacon]

I have exactly the same problem here with my ADSL connection. I've tried
ferrite cores (as opposed to clip ons) on all the cables into and out of the
router but without success. I've come to accept that as 3.5MHz is within the
ADSL bandwidth there's little that I can do. I'd be delighted if someone
could prove me wrong.

Graham
G8EWT

-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com] On Behalf Of John Lemay
Sent: 11 January 2008 08:51
To: uk-contest at contesting.com
Subject: [UK-CONTEST] 80m and ADSL

Morning all

Maybe a little off topic, but I know there's a mine of information out there
!

I might be giving our local (Colchester) club a bit of support in some of
the 80m contests this year (AFS and CC). With just 100w to a Butternut I
won't be exactly challenging the leaders, but it's the group effort which
will benefit.

Anyway, to get technical:- Whenever I run more than 20w or so on 80m, I
notice that my ADSL connection is interrupted. As far as I can tell, the
landline phone itself is not affected. I'm a bit concerned I may be having a
similar affect on my neighbours.

I have simple "clip-on" ferrites on all leads but suspect that at relatively
low frequencies like 3.5MHz these might not be effective enough? The cable
just passes through the ferrite; there are no multiple turns.

I've noticed in addition that for other unknown reasons, I occasionally lose
my ADSL for a minute or two. I can't be watching the leds on the wireless
router all the time, so I'm wondering if there's any bits of software I can
monitor my connection with over a long period? A "Google" has not been
fruitful.

Thanks in anticipation

John G4ZTR

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