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Re: [RFI] Please comment this picture

To: rfi@contesting.com
Subject: Re: [RFI] Please comment this picture
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Tue, 3 Jan 2023 11:23:24 -0800
List-post: <mailto:rfi@contesting.com>
On 1/3/2023 11:03 AM, Martin Kratoska wrote:
The attached picture displays my proposed CM choking scheme around the antenna switch. Take a look at this and comment, please - what is insufficient, what is an overkill etc.

The pic is also here:

https://ok1rr.com/public/choking.png

Where is the switch located? The most critical location for a common mode choke is at the antenna feedpoint. Chokes elsewhere in the system are a waste of money, EXCEPT when they break up a vertical run of coax feeding a dipole to prevent it from acting as a parasitic element to a nearby vertical antenna.

I know nothing about the Laird parts.

73, Jim K9YC

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