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81. [TowerTalk] Linear Resonator (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Sun, 20 Jan 2013 08:07:30 -0800 (PST); I have a half wave base fed vertical antenna spaced about 4ft from a grounded tower with insulated guys. Although the tower is physically about 5/8 wavelength high, it is quite wide and I suspect tha; /archives//html/Towertalk/2013-01/msg00217.html (7,886 bytes)
82. Re: [TowerTalk] Linear Resonator (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Mon, 21 Jan 2013 07:00:44 -0800 (PST); Jim, K9YC wrote: Before doing anything serious with the tower, I suggest that you first do an NEC model of your 160M antenna(s) including the tower and study the interaction. You might find the inter; /archives//html/Towertalk/2013-01/msg00220.html (8,963 bytes)
83. [TowerTalk] Detuning Skirt (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Fri, 30 Aug 2013 17:32:34 -0700 (PDT); I wonder if anyone has had experience with detuning skirts? (This is where a section of tower or other object - usually the bottom - sometimes the whole tower - has a cage of wires connected to the t; /archives//html/Towertalk/2013-08/msg00633.html (8,301 bytes)
84. [TowerTalk] Detuning Skirt (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Sat, 31 Aug 2013 12:38:19 -0700 (PDT); Sorry Dave, I guess I didn't make myself clear. The tower has never had a detuning skirft on it, but I am considering putting one on. I am aware that detuning skirts are most often used to prevent so; /archives//html/Towertalk/2013-08/msg00643.html (7,712 bytes)
85. [TowerTalk] Detuning Skirt (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Mon, 2 Sep 2013 17:11:05 -0700 (PDT); Thanks Dave and Steve for your comments. I will certainly contact Butch and much appreciate the intro. I had thought that a detuning skirt was the same concept as electrical trapping, and it clearly; /archives//html/Towertalk/2013-09/msg00028.html (7,467 bytes)
86. [TowerTalk] Method of calculating phase delay variation (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Tue, 3 Sep 2013 16:34:45 -0700 (PDT); Jim Brown asserts that 'polarity' is the correct term to use when two antennas are fed simultaneously from a single source. 'In-phase' or 'out-of-phase' feeds are precise statements that have been un; /archives//html/Towertalk/2013-09/msg00042.html (7,198 bytes)
87. [TowerTalk] Method of calculating phase delay variation (score: 1): Author: Roger Parsons <ve3zi@yahoo.com>; Date: Tue, 3 Sep 2013 18:16:33 -0700 (PDT); Jim Brown wrote: "No, they are vague, and poorly understood." No, they are not at all vague - they are precise. You apparently understand them poorly, but most engineers understand them quite perfect; /archives//html/Towertalk/2013-09/msg00045.html (8,045 bytes)

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