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Re: [TowerTalk] References for using a grounded tower as a vertical radi

To: towertalk@contesting.com
Subject: Re: [TowerTalk] References for using a grounded tower as a vertical radiator
From: Pete Smith N4ZR <pete.n4zr@gmail.com>
Date: Tue, 20 Jun 2023 10:39:32 -0400
List-post: <mailto:towertalk@contesting.com>
FWIW, you might look for references to "omega matching" a shunt fed tower - I found a straight gamma feed of my 97-foot Rohn 25 awkward - with the omega match using a pair of 300-pf transmitting capacitors I could put the top of the shunt feed at a convenient height and easily adjust for a good match.

73, Pete N4ZR

On 6/20/2023 10:25 AM, Rob Atkinson wrote:
Here are two to start with:

ON4UN's Low Band DXing  by ON4UN of course
Radio-Electronic Transmission Fundamentals by B. Whitfield Griffith, Jr.

Probably just about any antenna handbook will have something.  There
are two ways:  shunt feeding and you can also skirt feed a grounded
tower if it is tall enough in wavelength.

73

Rob
K5UJ
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