Sal M. Onella wrote:
What, if anything, do we know about the concept of a log spiral ground
plane? Genius or snake oil or something in-between???

I believe it's called the "Golden Ratio" based on
Fibonacci numbers and works as well as any other
ground plane including fractal ground planes. It,
like a fractal, is based on packing the most stuff
in the least amount of space. One sees the pattern
in pinecones, pineapples and sunflower seed heads.

http://www.psc.cornell.edu/gssop/cou...dex.php?page=4
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73, Cecil http://www.w5dxp.com