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Re: Topband: Inverted L redux

To: topband@contesting.com
Subject: Re: Topband: Inverted L redux
From: Wes <wes_n7ws@triconet.org>
Date: Mon, 2 Sep 2019 12:42:00 -0700
List-post: <mailto:topband@contesting.com>
Four 50-60 footers.

See: https://www.antennasbyn6lf.com/files/antenna_ground_system_experiment_4.pdf for my rational.

Wes  N7WS

On 9/2/2019 12:08 PM, N4ZR wrote:
More as an experiment and a thought-provoker than anything else, I've started adding 50-60-foot, on-the-ground radials to my 135-foot inverted L.  In the latest incarnation I'm up to 4 radials.  On my ancient MFJ-259B the lowest SWR is 1.3:1 at 1825 KHz, with an R of 77. X=0 (the 259B doesn't give the sign of j) from 1808 to1894, which I assume is roughly centered on the actual cross-over point.

With my rudimentary knowledge of such things, I'm guessing that there remains something on the order of 50 ohms of ground resistance to be reduced for efficiency,  through addition of radials.  Question is, would I profit most by adding another 4 50-60 foot radials, or 2 radials each 100-120 feet?

Comments appreciated.



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