Towertalk
[Top] [All Lists]

[TowerTalk] new-to-me Force12 EF-180B rotary dipole

To: towertalk <towertalk@contesting.com>, George Dubovsky <n4ua.va@gmail.com>
Subject: [TowerTalk] new-to-me Force12 EF-180B rotary dipole
From: Billy Cox via TowerTalk <towertalk@contesting.com>
Reply-to: Billy Cox <aa4nu@comcast.net>
Date: Wed, 13 Aug 2025 21:17:39 -0500 (CDT)
List-post: <mailto:towertalk@contesting.com>
Hi Geo,
 
Any words of wisdom on this please?  (I just purchased
one here and need to do a rebuild before putting it up ...)
 
How high is yours? In-line or 90 degree offset?
 
TU for all and any advice!
 
73 Billy, AA4NU
 
 
 
To:     towertalk <towertalk@contesting.com mailto:towertalk%40contesting.com>
Subject:        [TowerTalk] new-to-me Force12 EF-180B rotary dipole
From:   George Dubovsky <n4ua.va@gmail.com mailto:n4ua.va%40gmail.com>
Date:   Fri, 11 Jan 2019 10:00:28 -0500
List-post:      <mailto:towertalk@contesting.com>
I just acquired a used F12 80 meter dipole with the linear-loading wires. I 
have read everything I can find online about this design (mostly in Tower Talk) 
and I have a few questions. Has anyone modeled this antenna with the linear 
loading? I am curious as to how much L the linear loading wires present. I have 
read reports of folks using coils instead of the LL wires. Has anyone published 
real details of the modification, including any necessary element reinforcing 
or trussing? Is there a source of the Alumoweld wire if I should put it back up 
using the original design? The existing wires appear to be in usable shape, but 
all of the clamps are rusted and I don't know what I will find when I remove 
them. Any and all advice concerning this antenna is cheerfully solicited... 
;-). 73, geo - n4ua
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>
  • [TowerTalk] new-to-me Force12 EF-180B rotary dipole, Billy Cox via TowerTalk <=