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Re: [TowerTalk] Resistor Across a Choke Balun

To: "jim.thom" <>,
Subject: Re: [TowerTalk] Resistor Across a Choke Balun
From: KD7JYK DM09 <>
Date: Thu, 30 Jun 2022 14:57:57 -0700
List-post: <>
##  A  50 uh solenoid choke would work..and not series resonate on any ham
band....typ resonates around 40 mhz.

## 16-22 ga magnet wire, wound on a toroid would also work. Then you could
probably achieve > 50 uh, and still not series resonate on 20-10m.

##  The choke could be wired directly across the feed point of the ant.

Something I've always wondered, what is the "rule of thumb" for calculating such a choke to put an antenna at DC potential?

I'm thinking calculate L/C, and find the frequency, and avoid certain ones relevant to the antenna/transmitter, but does one also have to take into consideration the entire L/C of the feedline, which would be parallel, as well as the antenna elements?

I've looked on and off over the years for a tutorial, but not had any luck, can anyone suggest a route of study for me?



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