[TowerTalk] Resistor Across a Choke Balun

[KD7JYK DM09]

> ##  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?

Thanks.

Kurt