[TowerTalk] feedpoint choke for inv L

[Jim Brown]

On 11/18/2018 10:49 PM, David Gilbert wrote:
> I've never understood the value of a feedpoint choke for a typical 
> ground mounted vertical antenna,

It prevents the feedline from becoming part of the radial 
system/counterpoise, and thus part of the antenna. Without a choke, 
there is the potential for RF in the shack, and for noise coupling from 
the shack to the antenna. I have no serious observations about either in 
the field, but I do use a choke at the feedpoint of my three 160M 
verticals. If you roll your own, the cost is modest.

73, Jim K9YC