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

 To: [TowerTalk] re: The Ultimate (Perfect) Ground? alwilliams@olywa.net (Al Williams) 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? k7puc -----Original Message----- From: rick@area.com To: towertalk@contesting.com 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: http://www.contesting.com/towertalkfaq.html >Submissions: towertalk@contesting.com >Administrative requests: towertalk-REQUEST@contesting.com >Problems: owner-towertalk@contesting.com >Search: http://www.contesting.com/km9p/search.htm > > -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: owner-towertalk@contesting.com Search: http://www.contesting.com/km9p/search.htm ```
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