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Re: [TowerTalk] Decoupling feedlines from tower

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Decoupling feedlines from tower
From: "w7xu@w7xu.com" <w7xu@w7xu.com>
Date: Fri, 8 Oct 2021 11:43:39 -0500
List-post: <mailto:towertalk@contesting.com>
A bit more information on the tower:

It's base insulated and 190 ft. high. There are 3 ring rotators, so that precludes using a tower skirt.

Thanks for the suggestions I've received. And yes, I, too, am hesitant to interrupt the runs of Heliax, but I didn't know how else I might accomplish decoupling the feedlines. And perhaps that's not practical, either. But then I'm not an engineer and was hoping someone had another solution.

73, Arliss  W7XU



I have a tower that I'd like to use as a vertical radiator on 136 kHz, but I am uncertain as to how to decouple the feedlines that supply the antennas already on the tower. For the most part, the feedlines range from 7/8" to 1-1/4" Heliax.

I suppose I could patch in short sections of flexible coax with associated chokes suitable for 136 kHz, but I wonder if there is another way to accomplish the goal.

Thanks.

73, Arliss  W7XU


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