Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Radials\s+over\s+salt\s+water\?\s*$/: 13 ]

Total 13 documents matching your query.

1. [TowerTalk] Radials over salt water? (score: 1)
Author: K3BU@aol.com (K3BU@aol.com)
Date: Mon, 8 Jan 2001 09:20:45 EST
Talking about radials. Has anyone done some real life tests and comparison between few radials (2,4,8) and many (60, 120) when over salt water or marsh (or soaked salty beach)? The point of question
/archives//html/Towertalk/2001-01/msg00195.html (8,245 bytes)

2. [TowerTalk] Radials over salt water? (score: 1)
Author: cdietz@swbell.net (Logan Dietz)
Date: Mon, 08 Jan 2001 14:16:33 -0600
I used to have a station on a 1 ac point of land in salt water. I shunt fed a 130 foot tower with some beams on it. I took the radials to the salt water and terminated them to old aluminum from destr
/archives//html/Towertalk/2001-01/msg00204.html (8,772 bytes)

3. [TowerTalk] Radials over salt water? (score: 1)
Author: n4zr@contesting.com (Pete Smith)
Date: Mon, 08 Jan 2001 16:08:58 -0500
water and tried That certainly was the conclusion at 6Y2A et seq. If I remember correctly, they used only one or two radials over sea beach, largely to even out tidal variations in feedpoint behavior
/archives//html/Towertalk/2001-01/msg00207.html (9,606 bytes)

4. [TowerTalk] Radials over salt water? (score: 1)
Author: alwilliams@olywa.net (Al Williams)
Date: Mon, 8 Jan 2001 13:22:39 -0800
Can Towertalkers explain why antennas over salt water is such an improvement? It seems to me that if all of the RF directed downward is reflected upward, by the salt water, that is only a 3db improve
/archives//html/Towertalk/2001-01/msg00208.html (10,055 bytes)

5. [TowerTalk] Radials over salt water? (score: 1)
Author: K3BU@aol.com (K3BU@aol.com)
Date: Mon, 8 Jan 2001 16:57:46 EST
Hi Al, briefly, main reasons are: 1. Salt water "ground" provides low loss return in the immediate vicinity of the (vertical) antenna, which reduces losses in the ground, efficiency is better especia
/archives//html/Towertalk/2001-01/msg00209.html (9,375 bytes)

6. [TowerTalk] Radials over salt water? (score: 1)
Author: i4jmy@iol.it (Maurizio Panicara)
Date: Mon, 8 Jan 2001 23:04:52 +0100
correctly, tidal An high overall antenna efficiency is not necessarily coincident with a big GP efficiency at very low elevations. If the important point is to radiate at very low angles (below 1 de
/archives//html/Towertalk/2001-01/msg00210.html (9,436 bytes)

7. [TowerTalk] Radials over salt water? (score: 1)
Author: cdietz@swbell.net (Logan Dietz)
Date: Mon, 08 Jan 2001 15:57:32 -0600
It is very difficult to get a good ground in dirt. Youneed at least 64 1/4 wave long radials. In salt water you can throw out a 6 foot bare wire and have an excellent ground. Chuck, W5PR -- FAQ on WW
/archives//html/Towertalk/2001-01/msg00211.html (8,458 bytes)

8. [TowerTalk] Radials over salt water? (score: 1)
Author: i4jmy@iol.it (Maurizio Panicara)
Date: Mon, 8 Jan 2001 23:24:14 +0100
Because with vertically polarized antennas the very low elevation angles are present only when the ground (that one extending for wavelenghts from the antenna, not the radial system) is very good or
/archives//html/Towertalk/2001-01/msg00212.html (11,534 bytes)

9. [TowerTalk] Radials over salt water? (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Mon, 8 Jan 2001 18:17:52 -0500
Hi Chuck, Skin depth of saltwater on 160 meters is in the range of a foot or two. If you throw a six foot wire in the salt water, you have something far from an excellent ground. Only the top foot o
/archives//html/Towertalk/2001-01/msg00215.html (9,794 bytes)

10. [TowerTalk] Radials over salt water? (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Mon, 8 Jan 2001 15:49:50 -0700
On Mon, 8 Jan 2001 13:22:39 -0800 "Al Williams" <alwilliams@olywa.net> writes: It's actually +6db. But, with a vertical over poor ground, the downward directed ray undergoes a phase shift, and comes
/archives//html/Towertalk/2001-01/msg00216.html (8,726 bytes)

11. [TowerTalk] Radials over salt water? (score: 1)
Author: cdietz@swbell.net (Logan Dietz)
Date: Mon, 08 Jan 2001 18:00:14 -0600
Ok, I got a little carried away! Chuck, W5PR -- FAQ on WWW: http://www.contesting.com/FAQ/towertalk Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Pro
/archives//html/Towertalk/2001-01/msg00217.html (8,376 bytes)

12. [TowerTalk] Radials over salt water? (score: 1)
Author: n4kg@juno.com (n4kg@juno.com)
Date: Tue, 9 Jan 2001 08:03:39 -0600
I recall a DXpedition to ZL8 used a wire vertical over salt water on either 80 or 160M. For ground, the submerged a galvanized bucket in the salt water. Would this greater surface area solve the curr
/archives//html/Towertalk/2001-01/msg00228.html (8,490 bytes)

13. [TowerTalk] Radials over salt water? (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Tue, 9 Jan 2001 18:35:49 -0500
Hi Tom Well, looking at it on a model where a 1/4 wl monopole with 60 1/4 wl radials is compared with either average soil or seawater, at 15 degrees the difference is about 2 dB. As for the eliminati
/archives//html/Towertalk/2001-01/msg00235.html (10,518 bytes)


This search system is powered by Namazu