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## [TowerTalk] The Ultimate (Perfect) Ground? - Think Piece

 To: [TowerTalk] The Ultimate (Perfect) Ground? - Think Piece k4tmc@juno.com (Henry A Pollock) Wed, 22 Dec 1999 03:11:35 -0500
 ```Having a few days off from work for the Holidays, I have been reading the ARRL Antenna Compendium Vol. 6. There is some fasinating data in the two articles by N6BV (Using HF Propagation Predictions, and Antennas Here Are Some Verticals on the Beach) dealing with the use of verticals near salt water. My thoughts are - how to obtain these results at locations away from salt water. In looking back at the 18th Edition of the ARRL Antenna 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 posssible to use those receive Beverage antennas as an extended radial to simulate a far field perfect ground in at least one direction? Is a 1000 ft Beverage still too short? Or, does one need more than just a single wire? OK, what if - "on the way to Grandma?s house" Saturday, I happen across a wreck in which the chicken wire truck spilled several hundred rolls? Do I quickly load them and spend next week spreading them end-to-end as far as they will go in one direction? Happy Holidays 73, Henry Pollock - K4TMC Raleigh, NC k4tmc@juno.com ___________________________________________________________________ Why pay more to get Web access? Try Juno for FREE -- then it's just \$9.95/month if you act NOW! Get your free software today: http://dl.www.juno.com/dynoget/tagj. -- 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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