RFI
[Top] [All Lists]

Re: [RFI] Common Mode In-Shack Choke

To: rfi@contesting.com
Subject: Re: [RFI] Common Mode In-Shack Choke
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Wed, 7 Apr 2021 15:21:43 -0700
List-post: <mailto:rfi@contesting.com>
On 4/7/2021 3:01 PM, David Eckhardt wrote:
I have used RG-142 for the purpose.  It is high-power Teflon center
insulated with double shield.  All conductors are silver plated.  It will
take a kW at HF.

The shortcoming of all of these coaxes in this application is bend radius, which when wound on 2.4-in o.d. toroids is significantly less than they are specified. With a lot of consultation with other engineers whose judgement I trust, I settled on RG400, because the center is stranded silver on copper, making it less likely to migrate with the tight wind.

73, Jim K9YC
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi

<Prev in Thread] Current Thread [Next in Thread>