you would be interested in www.arrl.org/qex/Buxton.pdf which is an article
about
Dominant-Element-Principle Loaded Dipoles.

Brian, LA0DG

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Brian, thank you for drawing my attention to this article of which I had no
idea that such a detailed and beautifully written amount of work existed.
Following further study I may communicate directly with the author. It is
indeed a work of art!
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Reg