[UK-CONTEST] UK-Contest Digest, Vol 61, Issue 10

[David Ferrington, M0XDF]

Good I recommend
http://www.ky-filters.com/
I have the RF-1 filter and it has completely stopped the problem I was
having with 40M RFI on my DrayTek router.


On 11/1/08 14:19, "uk-contest-request at contesting.com"
<uk-contest-request at contesting.com> sent:

> Message: 1
> Date: Fri, 11 Jan 2008 08:50:30 -0000
> From: "John Lemay" <john at carltonhouse.eclipse.co.uk>
> Subject: [UK-CONTEST] 80m and ADSL
> To: <uk-contest at contesting.com>
> Message-ID: <005c01c8542f$04edd270$2101a8c0 at G4ZTR>
> Content-Type: text/plain; charset="us-ascii"
> 
> 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

-- 
If a man will begin with certainties, he shall end in doubts; but if he
will be content to begin with doubts, he shall end in certainties.
-Francis Bacon, essayist, philosopher, and statesman (1561-1626)