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Re: [TowerTalk] 4 square for 80

To: "jim@audiosystemsgroup.com" <jim@audiosystemsgroup.com>, "towertalk@contesting.com" <towertalk@contesting.com>, "k3lr@k3lr.com" <k3lr@k3lr.com>
Subject: Re: [TowerTalk] 4 square for 80
From: <samsadventure@gmail.com>
Date: Sun, 25 Sep 2016 12:58:14 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Tim, I have the W7DD version of the vertical dipoles for my 4-square with the 
Comtek box (from DXE).  I understood from the instructions that I needed the 
chokes at the ends connected to the antenna.  Should I also have chokes at the 
feedline connection (Comtek box) ends?






Sam N5FO






From: Tim Duffy
Sent: ‎Saturday‎, ‎September‎ ‎24‎, ‎2016 ‎7‎:‎42‎ ‎PM
To: jim@audiosystemsgroup.com, towertalk@contesting.com





Hello Jim,

We are talking about feedlines that are 20 feet (feedlines) above the
ground. They have to be choked (both ends). The raised radial application
(which is not as good as the ground mounted solution with 64 plus radials).
The feedlines must not be radials - that is why they must be choked.

73,
Tim K3LR

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Jim
Brown
Sent: Saturday, September 24, 2016 3:36 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] 4 square for 80

On Sat,9/24/2016 10:07 AM, David Robbins wrote:
> I fail to
> see why the shield of the feedlines is different from the radials it is
connect to at the base of the vertical.

The radials are not connected to anything at the far end. The feedline is.

I've seen several recommendations from people I view as "authorities" 
say that the feedlines of vertical antennas should be choked. Sorry, I 
don't recall who.

73, Jim K9YC

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