[TowerTalk] Choke on feed point of dipole

Jim Brown jim at audiosystemsgroup.com
Mon Jan 12 19:35:16 EST 2026


On 1/12/2026 4:15 PM, Tom Hellem wrote:
> I'm doing exactly that.
> But The horizontal portion of my feedline as it leads away from
> the vertical dipole is not exactly horizontal, it drops down
> at maybe a 30 degree angle for about 8' , then it drops
> straight down vertically to the ground.
> I am getting the feeling this could be part or all of the problem.

Yes. That's what I meant when I observed that the feedline becomes part 
of the antenna. It would be pretty easy to model in NEC -- all you need 
are the endpoints of straight portions of the run, and an approximation 
would be enough to show proof of concept.

73, Jim K9YC



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