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[TowerTalk] re: The Ultimate (Perfect) Ground?

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Subject: [TowerTalk] re: The Ultimate (Perfect) Ground?
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Date: 23 Dec 1999 05:02:40 -0000
> From: Henry A Pollock <>
> Subject: [TowerTalk] The Ultimate (Perfect) Ground? - Think Piece
> Handbook, it appears that saltwater represents a ?perfect ground.?  And
> right on the beach, you have a perfect ground in both the near field and
> far field.  It appears that with 120 radials of 1/2 wavelength, you can
> obtain a reasonable perfect ground in the near field (re Ant. Hndbk. Chpt
> 3 - Table 1).  Realizing that it would be impractical to try to obtain a
> far field perfect ground in all directions (360 degrees), what about
> trying to implement this in one direction?  For those of us on the East
> Coast, 45 degrees puts one right in the center of Europe.  Could it be

I tried this on 20 meters.  I laid out 60 radials 250 feet long in a
45 degree sector pointed towards Europe.  It produced no improvement 
with a 1/4 wave vertical and 2 to 3 dB improvement (to Europe only)
for a 1/2 wave vertical.  I also did simulations up to 1000 radials
500 feet long on NEC3-GS.  Bottom line is that you cannot (practically)
simulate being on the beach with ground wires.  Complete details are
on my web site:  <<>> .

Rick Karlquist N6RK

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