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Re: [TowerTalk] common mode chokes, baluns and multiband doublets

To: towertalk@contesting.com
Subject: Re: [TowerTalk] common mode chokes, baluns and multiband doublets
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Wed, 13 Dec 2017 00:23:35 -0800
List-post: <mailto:towertalk@contesting.com>
Maximo,

These chokes are based on my design concepts, built with the limited parts that Farnell was willing to sell in the UK. But they designed for 50 ohm systems and matched antennas. Not mismatched antennas on hi-Z 2-wire line. Ian is a fine engineer -- he did his best with the parts available to him at the time.

73, Jim K9YC

On 12/12/2017 10:37 PM, Máximo EA1DDO_HK1H wrote:
Yo don't need to.

Someone else already did it:

http://www.ifwtech.co.uk/g3sek/in-prac/inpr1005_ext_v2.pdf


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