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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Radials\,\s+EZNEC\s+and\s+far\s+field\s*$/: 11 ]

Total 11 documents matching your query.

1. Topband: Radials, EZNEC and far field (score: 1)
Author: Ignacy Misztal <no9e@arrl.net>
Date: Mon, 19 Dec 2022 17:50:53 -0500
Do more radials on a 160m vertical bring more improvements than shown by simulation? Most simulations, e.g. by EZNEC, show that going above 32 radials on 160m brings minimal improvement, say 1 db to
/archives//html/Topband/2022-12/msg00080.html (7,036 bytes)

2. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Frank W3LPL <donovanf@starpower.net>
Date: Mon, 19 Dec 2022 19:16:30 -0500 (EST)
Hi Ignacy - There's little hope that a vertical antenna hundreds of miles from salt water can ever close the gap with an antenna built over a salt marsh or within about a wavelength of salt water. Th
/archives//html/Topband/2022-12/msg00082.html (9,324 bytes)

3. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Artek Manuals <Manuals@ArtekManuals.com>
Date: Mon, 19 Dec 2022 19:50:01 -0500
Soil conductivity plays a much bigger role than most of us realize and the "over salt water" is the gold standard`. As noted by a few other respondents radials are certainly helpful but for those of
/archives//html/Topband/2022-12/msg00086.html (8,366 bytes)

4. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Brian D G3VGZ <topband@planet3.freeuk.co.uk>
Date: Tue, 20 Dec 2022 01:17:39 +0000
One other situation, above large quantities of dry ice, Antarctica or perhaps Greenland. -- Brian D G3VGZ _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
/archives//html/Topband/2022-12/msg00087.html (7,738 bytes)

5. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: donroden@hiwaay.net
Date: Mon, 19 Dec 2022 19:30:20 -0600
Possibly Bouvet in January... W4DNR One other situation, above large quantities of dry ice, Antarctica or perhaps Greenland. Radials have no useful effect in improving low angle radiation, low angle
/archives//html/Topband/2022-12/msg00088.html (7,990 bytes)

6. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: <n4is@comcast.net>
Date: Tue, 20 Dec 2022 07:25:35 -0500
Hi Frank You wrote " . A vertical over a salt marsh or within about a wavelength of salt water will produce 6 dB or more of gain at low angles compared to a vertical with poorly conducting soil in it
/archives//html/Topband/2022-12/msg00094.html (8,339 bytes)

7. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Frank W3LPL <donovanf@starpower.net>
Date: Tue, 20 Dec 2022 08:38:36 -0500 (EST)
Hi JC, I didn't think it would be productive to cover in-the-salt-water antennas in my reply to a specific question about how to improve the performance of an antenna hundreds of miles from the ocean
/archives//html/Topband/2022-12/msg00095.html (9,177 bytes)

8. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Tue, 20 Dec 2022 08:58:23 -0500
Having walked around on the beach with a battery K2 listening to incoming signals on a short antenna, walking 50 feet from the water drops signals multiple S units. Over the beach there is an absorpt
/archives//html/Topband/2022-12/msg00097.html (10,327 bytes)

9. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Tue, 20 Dec 2022 12:16:13 -0800
In this discussion, it's important to realize that the earth, salt water, and radials, serve two functions. Soil in all its forms is a big resistor. Radials serve to carry return current for the ante
/archives//html/Topband/2022-12/msg00102.html (10,569 bytes)

10. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: <n0tt1@juno.com>
Date: Tue, 20 Dec 2022 17:15:51 -0600
incoming signals on a short antenna, walking 50 feet from the water drops signals multiple S units." Perhaps the handheld radio has a better ground connection, capacity coupled or not, through you a
/archives//html/Topband/2022-12/msg00108.html (11,718 bytes)

11. Re: Topband: Radials, EZNEC and far field (score: 1)
Author: Guy Olinger K2AV <k2av.guy@gmail.com>
Date: Thu, 22 Dec 2022 17:29:39 -0500
Hi Charlie. Naw, it's also the same if you hang it on a long strap or simply set it down on the sand. The incoming distant signal is simply diminished at that point. The essential modifying aspect is
/archives//html/Topband/2022-12/msg00115.html (13,018 bytes)

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