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141. Re: Topband: Radials help (score: 128): Author: k3bu@optimum.net; Date: Fri, 10 Feb 2012 18:20:16 +0000 (GMT); Mis tres centavos: I think you are right on! There is confusion what is radial - as part of resonant antenna radiator vs. ground (plane) One has to look at the current distribution curves in EZNEC an; /archives//html/Topband/2012-02/msg00108.html (13,504 bytes)
142. Topband: Radials help (score: 128): Author: Dennis OConnor <ad4hk2004@yahoo.com>; Date: Thu, 10 Nov 2011 03:41:59 -0800 (PST); There are definitive studies which show that for a few radials making them long does not do as much as making them half as long and doubling the number... i.e. twice the number of radials for the sa; /archives//html/Topband/2011-11/msg00053.html (7,936 bytes)
143. Re: Topband: soldering radials (score: 128): Author: Charles Moizeau <w2sh@msn.com>; Date: Sat, 20 Aug 2011 00:09:57 -0400; Jorge, The short answer is the 120 18-gauge radials will be much more effective than the 40 radials. Consider two absurd examples: 1) all 120 radials are connected in parallel and laid in a single sh; /archives//html/Topband/2011-08/msg00043.html (10,493 bytes)
144. Re: Topband: soldering radials (score: 128): Author: Guy Olinger K2AV <olinger@bellsouth.net>; Date: Thu, 18 Aug 2011 11:22:11 -0400; RF performance will improve with the number of radials, particularly because one of the duties of radials is to create a UNIFORM field around the base that is opposite and equal to the field from the; /archives//html/Topband/2011-08/msg00034.html (12,057 bytes)
145. Re: Topband: Asymmetric radials for GP antennas; Just in case others seek what I've just found... (score: 128): Author: k8gg@voyager.net; Date: Mon, 16 May 2011 23:16:50 -0400 (EDT); Cormac & other Topbanders, In the new June 2011 issue of QST, page 42 there is an article about a vertical with only two radials on one side of a vertical radiator, and the directivity one gets by ha; /archives//html/Topband/2011-05/msg00048.html (11,335 bytes)
146. Re: Topband: radials (score: 128): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Fri, 05 Nov 2010 07:39:07 +0100; I would shoot for 60 1/4 wl on the ground (like W3LPL says). This will be "very close to" optimum and the losses in the near field will be well below 1 dB. Anything less is going to be "dB down". Mea; /archives//html/Topband/2010-11/msg00015.html (9,755 bytes)
147. Re: Topband: Elevated Radials (score: 128): Author: DGB <ns9i2016@Bayland.net>; Date: Wed, 27 Oct 2010 18:32:00 -0500; Thanks to all on your collective wisdom, great stimulus for thought. 73 Dwight NS9I _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK; /archives//html/Topband/2010-10/msg00131.html (12,081 bytes)
148. Re: Topband: Ground Radials and an inv-L antenna (score: 128): Author: Guy Olinger K2AV <olinger@bellsouth.net>; Date: Tue, 29 Sep 2009 10:36:26 -0400; Given that he was starting with so few radials, I am suspicous that his feedline shield was *not* sharply decoupled and by chance was presenting a low enough impedance as a current sink that the (inf; /archives//html/Topband/2009-09/msg00163.html (9,907 bytes)
149. Re: Topband: Ground Radials Yet Again (score: 128): Author: "K9AY" <k9ay@k9ay.com>; Date: Sat, 14 Oct 2006 21:07:44 -0500; Yes, a wire on ground has a velocity factor determined by the dielectric constant of the earth below it, as well as the air above it. But it doesn't matter when we have many wires working together as; /archives//html/Topband/2006-10/msg00104.html (8,940 bytes)
150. Re: Topband: Elevated vs Buried Radials (score: 128): Author: "K9AY" <k9ay@k9ay.com>; Date: Fri, 4 Mar 2005 22:25:07 -0600; ...etc. de W4ZV ____________ The K3LC article has valuable comparison data, but we need to consider a significant variable in his modeling process. I have found Al's work very interesting and useful; /archives//html/Topband/2005-03/msg00046.html (8,792 bytes)
151. Topband: Radials question. (score: 128): Author: "Magnus A" <sm6wet@telia.com>; Date: Sun, 31 Oct 2004 19:54:40 -0000; Hi! A radials questions. I am putting up a shortened vertical due to lack of space. The lack of space limits also the lengths of radials - unfortunatly. but I want to at least be able to work a few s; /archives//html/Topband/2004-10/msg00170.html (7,895 bytes)
152. RE: Topband: Adding radials, a question (score: 128): Author: "Richard Detweiler" <rdetweil@hotmail.com>; Date: Thu, 02 Sep 2004 12:34:20 -0500; Hi Dave, While I am no expert on the issue of radials, There are many good articals, I've found some of the best about vertical theory in dealing with the Butternutt Verticals. http://www.bencher.com; /archives//html/Topband/2004-09/msg00005.html (11,170 bytes)
153. TopBand: RADIALS (score: 128): Author: w9vne@fuse.net (james danehy); Date: Wed, 16 Dec 1998 22:01:11 -0500; I have read quite a number of emails over the months in which a radial system is described as having a very limited number of 130 foot radials. The number of 1/4 wave radials indicated vary from a lo; /archives//html/Topband/1998-12/msg00154.html (8,434 bytes)
154. TopBand: Umbrella Antenna/Elevated Radials (score: 128): Author: k0ha@navix.net (Bill Hohnstein); Date: Thu, 30 Jul 1998 19:07:30 -0700; This is a followup on a post that I made this April regarding an article in Radio World magazine (written for broadcast radio) on the "AM Umbrella Antenna," authored by Clarence Beverage and Alan Chr; /archives//html/Topband/1998-07/msg00118.html (8,913 bytes)
155. TopBand: Elevated Radials (score: 128): Author: jbmitch@vt.edu (John Mitchell); Date: Mon, 23 Mar 1998 18:45:01 -0500; In fact, if you really have perfect ground, zero radials Well, no it isn't. Referring to 'SE's EZNEC results, there was about 1db gained from elevating the feedpoint and whatever radial system above; /archives//html/Topband/1998-03/msg00432.html (9,611 bytes)
156. TopBand: Elevated Radials (score: 128): Author: km1h@juno.com (km1h @ juno.com); Date: Wed, 18 Mar 1998 10:25:31 EST; On Tue, 17 Mar 1998 23:56:31 EST k6se@juno.com (Earl W Cunningham) writes: Earl, Christman covered that in a QST followup to his original article. It was in Technical Correspondence I believe. Perhap; /archives//html/Topband/1998-03/msg00272.html (10,185 bytes)
157. Topband: 160 L and radials (score: 125): Author: W3HKK@roadrunner.com; Date: Fri, 11 Dec 2020 14:49:07 +0000; Interesting thread. Bought three acres in the country here in central Ohio, where the general ground conductivity articles feel we have good midwestern loam soil. Well, MY soil is more like semi clay; /archives//html/Topband/2020-12/msg00124.html (9,651 bytes)
158. Topband: 160M INV-L with 2 Elevated Radials (score: 125): Author: Mark K3MSB <mark.k3msb@gmail.com>; Date: Sat, 14 Jul 2018 09:37:07 -0400; Greetings Fellow Night-Owls! My 160 meter antennas are typically put up in mid November and taken down at the end of March as my wife likes the grass mowed on a regular basis. The transmit antenna is; /archives//html/Topband/2018-07/msg00088.html (11,540 bytes)
159. Topband: Radials question (score: 125): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Tue, 13 Jun 2017 05:02:45 -0500; I don't know the DX Eng. product. Usually "wider bandwidth" means flatter vswr curve at the load. There are right and wrong ways to achieve this. Right: wider driven radiator. Wrong: few radials or; /archives//html/Topband/2017-06/msg00031.html (7,997 bytes)
160. Re: Topband: Inverted L Radials (score: 125): Author: Drew Vonada-Smith <drew@whisperingwoods.org>; Date: Fri, 2 Dec 2016 12:11:14 -0600; I agree with the comments so far, and also that a 2:1 transmission line transformer is a good method. But if you are in a hurry, here is an very easy approach. Just use a hairpin match. Mine was; /archives//html/Topband/2016-12/msg00015.html (11,148 bytes)

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