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

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Subject: [TowerTalk] re: The Ultimate (Perfect) Ground?
From: (Al Williams)
Date: Thu, 23 Dec 1999 09:16:11 -0800
If all of the radiated energy directed towards ground is reflected
upwards by a "perfect salt water ground", then the skyward
power can only be doubled--3db.  Why then is a salt water
location so coveted?


-----Original Message-----
From: <>
To: <>
To: <>
Date: Wednesday, December 22, 1999 9:05 PM
Subject: [TowerTalk] re: The Ultimate (Perfect) Ground?

>> 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
>FAQ on WWW:     
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