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261. Topband: Radials Again (score: 119): Author: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@cox.net>; Date: Mon, 2 Oct 2006 10:41:52 -0500; While searching the Topband archives for information on radials I came across a very interesting bit of information submitted in October 1996 by W1FV. This information references a paper by Brown, Le; /archives//html/Topband/2006-10/msg00013.html (7,800 bytes)
262. Re: Topband: elevated radials (score: 119): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Sat, 5 Aug 2006 11:29:40 -0400; We can find all sorts of articles based on models. The only A-B comparisons I'm aware of where only radials were changed are mine and N7CL's. There are some FS measurements at WVNJ, but since that i; /archives//html/Topband/2006-08/msg00030.html (8,555 bytes)
263. Re: Topband: Tuning elevated radials (score: 119): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Sat, 17 Sep 2005 17:47:02 -0400; current no mention measurements not in The fact remains unequal currents in equal length radials proves each radial is located in a greatly varied electrical environment. Perhaps the radials are at; /archives//html/Topband/2005-09/msg00051.html (9,770 bytes)
264. Re: Topband: Tuning elevated radials (score: 119): Author: "Mike Harris" <mike.harris@horizon.co.fk>; Date: Fri, 16 Sep 2005 19:00:33 -0300; G'day all, bandwidth. I was going to refer to the G6XN recommendation. I have used this technique on my 30M vertical. The vertical element is 30 feet long with the base 3 feet from the ground. Two gu; /archives//html/Topband/2005-09/msg00047.html (9,716 bytes)
265. Re: Topband: Tuning elevated radials (score: 119): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Fri, 16 Sep 2005 14:31:50 -0400; convincing evidence exercise. supposed to occur at zenith is a good thing. If nearby QRN arrives at a high angle, then the deep null at zenith should be a good first line of defense against noise. I; /archives//html/Topband/2005-09/msg00040.html (9,998 bytes)
266. Topband: Elevated vs Buried Radials (score: 119): Author: "Larry Schimelpfenig" <k7sv@adelphia.net>; Date: Sat, 5 Mar 2005 15:15:06 -0500; Maybe I should get off my duff and get into modeling myself, but until I do..... I'd like to know if anyone has included the gull wing effect of using elevated radials with a ground mounted vertical; /archives//html/Topband/2005-03/msg00057.html (8,011 bytes)
267. Topband: Questions about verticals and radials (score: 119): Author: "Jim & Carolyn Kingsbury" <kingsburys@bellsouth.net>; Date: Tue, 8 Feb 2005 15:46:50 -0500; Hello Topbanders I'm new to the reflector so I'll introduce myself. I'm Jim Kingsbury NW6S and I retired (mechanical engineer) from CA in Nov. 96 and moved to western NC. It's nice to have almost and; /archives//html/Topband/2005-02/msg00113.html (10,340 bytes)
268. Re: Topband: Adding radials, a question (score: 119): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Fri, 3 Sep 2004 01:14:49 -0400; able to confirm other points being Hi Richard, I don't think the article you mentioned is correct. If I have one elevated radial and increase the number to ten, bandwidth of the antenna will increas; /archives//html/Topband/2004-09/msg00010.html (9,224 bytes)
269. Topband: Radials around house (score: 119): Author: dz@VOA.GOV (Richard Zwirko); Date: Mon, 30 Sep 2002 13:24:40 -0400 (EDT); = = = Marty, I'm shunt feeding a 78' Rohn #25 about 20 feet behind the house. Because of the small 1/3 acre lot, 15 of the radials are short (1/8 wave) plus a two long (almost 1/4 wave) ones. These c; /archives//html/Topband/2002-09/msg00225.html (8,913 bytes)
270. Topband: Number of radials - elevated vs grounded (score: 119): Author: k4kyv@hotmail.com (Donald Chester); Date: Tue, 12 Mar 2002 21:32:06; Let's take two extreme cases of vertical antennas with ground radials: a quarter wave broadcast band vertical with 120 buried radials, and a VHF ground plane on a pole, with 3 or 4 quarter wave radia; /archives//html/Topband/2002-03/msg00111.html (8,343 bytes)
271. Topband: Radials (score: 119): Author: k6se@juno.com (k6se@juno.com); Date: Fri, 12 Oct 2001 17:27:37 -0700; The one-meter "rule of thumb" I mentioned was for radials under a 40-meter vertical. Double that for 80-meters and quadruple it for 160-meters. Using data from the table in chapter three of the ARRL; /archives//html/Topband/2001-10/msg00098.html (7,364 bytes)
272. Topband: 160 vertical, radials and beverages (score: 119): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 7 May 2001 16:42:07 -0400; Mutual coupling is not the issue. The radials provide the other terminal for the feedline to "push" against. Unless the feedline is radiating, you will have exactly the same current into the ground; /archives//html/Topband/2001-05/msg00012.html (9,565 bytes)
273. Topband: Topband Radials System (score: 119): Author: kn4lf@webtv.net (Thomas Giella); Date: Thu, 10 Aug 2000 18:29:32 -0400 (EDT); Dick W1ZC Said: I put down 175 radials, over about a 3/4 year period, from rolls of insulated #22,24, etc. hookup wire, bought at various flea markets (cheap) in 500-1000' rolls. Basic: the more radi; /archives//html/Topband/2000-08/msg00032.html (7,828 bytes)
274. Topband: re: Elevated Radials (score: 119): Author: K2KW" <K2KW@prodigy.net (K2KW); Date: Tue, 8 Feb 2000 08:27:09 -0800; Did you look at the feedpoint impedance when you made these changes? That should give you a big clue to the efficiency of the installation. With the ground radials, I might suspect that the impedance; /archives//html/Topband/2000-02/msg00059.html (7,892 bytes)
275. TopBand: Elevated Radials Test #1 (score: 119): Author: km1h@juno.com (km1h @ juno.com); Date: Fri, 10 Apr 1998 13:26:09 EDT; The 2nd radial field is behind the test antenna as far as the RX site is concerned. The connecting wires are 130' long which is the base seperation between the antennas. If there was parasitic coupli; /archives//html/Topband/1998-04/msg00133.html (8,870 bytes)
276. TopBand: Elevated Radials Test #1 (score: 119): Author: CQK8DO@aol.com (CQ K8DO); Date: Fri, 10 Apr 1998 09:50:39 EDT; Carl.....How far away from the antenna and in what direction in comparison to the receive antenna is the second set of elevated radials? How long is the wire connecting the two sets of "radials"? The; /archives//html/Topband/1998-04/msg00131.html (7,638 bytes)
277. TopBand: Elevated Radials Test #1 (score: 119): Author: km1h@juno.com (km1h @ juno.com); Date: Thu, 09 Apr 1998 15:38:10 EDT; The following tests wer performed today. I am looking for any feedback...critiques on the methods. Freq: 1830KHz TX: TS940 at about 10W thru a 10dB Bird attenuator to minimize any VSWR problems. Feed; /archives//html/Topband/1998-04/msg00118.html (8,981 bytes)
278. TopBand: shunt-feeding towers and elevated radials (score: 119): Author: andrew@gi0nwg.demon.co.uk (Andrew Williamson); Date: Sun, 22 Mar 1998 20:49:33 +0000; Hi all, I've been following the elevated radial discussion with great interest and have learnt a LOT. Thanks guys. Now I have a few questions regarding shunt-feeding a grounded tower with elevated ra; /archives//html/Topband/1998-03/msg00409.html (9,457 bytes)
279. TopBand: Elevated Radials (score: 119): Author: km1h@juno.com (km1h @ juno.com); Date: Fri, 20 Mar 1998 10:26:27 EST; To resonate or not to resonate elevated radials? There seem to be 2 distinct camps represented here. I feel that I am sitting at the baseline of a tennis match! SNIP zone. Don't elevated radials giv; /archives//html/Topband/1998-03/msg00335.html (11,417 bytes)
280. TopBand: Elevated radials (score: 119): Author: jbmitch@vt.edu (John Mitchell); Date: Fri, 06 Mar 1998 15:00:17 -0500; Hi Larry, et al, I would imagine the same skin effect is responsible for the depth of radial current flow in soil as it is for current in the antenna near field and fresnel zone, i.e., the lower the; /archives//html/Topband/1998-03/msg00107.html (10,535 bytes)

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