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Re: [RFI] CAT 3 Cable?

To: "RFI List" <rfi@contesting.com>
Subject: Re: [RFI] CAT 3 Cable?
From: "Jim Brown" <jim@audiosystemsgroup.com>
Reply-to: Jim Brown <jim@audiosystemsgroup.com>
Date: Fri, 18 Jun 2004 14:03:37 -0500
List-post: <mailto:rfi@contesting.com>
On Fri, 18 Jun 2004 08:19:49 -0500, Jim Brown wrote:

>I am able to achieve  2-6 S-units of suppression of these components 
>with multi-turn chokes wound around some  big clamp-on #31 ferrites. 

Reading the latest (July) QST, I see that I'm not alone in recommending this 
technique. See "Workbench" on pages 54-55, with a photo of about 10 
turns of coax wound around a toroidal core. The author hasn't quite figured 
out how multiple turns moves the effective range of the choke down in 
frequency though. :) 

Jim Brown  K9YC

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