[UK-CONTEST] UK-Contest Digest, Vol 54, Issue 4

[David Ferrington, M0XDF]

Thanks for that, I do have rings on the telephone connection at the point of
entry to the unit (DrayTek 2800v) and on the power lead in same place. Plus
clip-ons on the UTP. Still a problem.

Thanks for tip on SNR Margin, I was looking for a simpler way to check that.

'Wound correctly' - I've seen two examples of winding rings, I hope I've got
mine right...
1) start and wind about 90% around, leaving a gap between beginning and end
of winding.

2) go around 40%, cross-over to other side of ring and go back around.

I'm never sure which is supposed to be the correct way, my foundation book
showed method (2) and 'The RSGB Guide to EMC' shows method (1), which is
what I have followed.


On 4/6/07 17:00, "uk-contest-request at contesting.com"
<uk-contest-request at contesting.com> sent:

> Message: 2
> Date: Sun, 3 Jun 2007 19:01:15 +0100
> From: "Ian Fugler G4IIY" <zen90387 at zen.co.uk>
> Subject: Re: [UK-CONTEST] UK-Contest Digest, Vol 53, Issue 35
> To: <uk-contest at contesting.com>
> Message-ID: <00cc01c7a609$2e3b4060$0b01a8c0 at Housedell>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
> 
> I have a DrayTek router.  It required some ferrites on the telephone cable
> to stop it dropping sync when I was on either 30m or 40m.  In fact, on 40m
> it only took about 10w.  I can run QRO now with the ferrites added.
> Strangely, for the first time last weekend, it did it on 80m (QRO), but has
> not happened since I added a further ferrite.  Keep adding them (wound
> correctly), is my advice.  You can tell if they are having a positive effect
> by comparing the SNR figure before/after.
> 
> Ian

-- 
Black holes are where God divided by zero.
-Steven Wright, comedian (1955-)