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Total 337 documents matching your query.

61. [TowerTalk] U.S. Tower Raising Fixtures MAF-XXX (score: 1)
Author: dick.green@valley.net (Dick Green)
Date: Fri, 28 Sep 2001 12:17:11 -0400
Roger, (K7LXC -- check out notes on tower rotation below) Difficult question. I agree that the fixture is crucial for installation, but I stopped using it once I discovered the ladder technique. That
/archives//html/Towertalk/2001-09/msg00734.html (15,902 bytes)

62. [TowerTalk] RE: Tower Talk Digest V4 #306 (score: 1)
Author: dick.green@valley.net (Dick Green)
Date: Sat, 21 Jul 2001 11:45:13 -0400
Jeff, This is an interesting idea, and I've wondered if it could be done. I haven't pursued it because my TH-7's windload maxes out my MA-770's rating. These towers aren't designed for a stacked conf
/archives//html/Towertalk/2001-07/msg00358.html (10,225 bytes)

63. [TowerTalk] 4-Square over sloping terrain (score: 1)
Author: dick.green@valley.net (Dick Green)
Date: Fri, 9 Feb 2001 12:37:13 -0500
Tom, My 40M 4-square is on a hill. The SE element is about 4-5 feet higher than the NW element and the NE/SW elements are 2-3 feet down/up the slope from the other two. On receive, the F/B ratio and
/archives//html/Towertalk/2001-02/msg00253.html (7,622 bytes)

64. [TowerTalk] US Tower MARB55, questions? (score: 1)
Author: dick.green@valley.net (Dick Green)
Date: Mon, 29 Jan 2001 01:25:01 -0500
Tom, I have an MA770-MARB, not exactly the same but similar enough for me to comment: 1. This isn't your typical homebrew project. Unless you really know your engineering, metalurgy and welding, I w
/archives//html/Towertalk/2001-01/msg00712.html (9,803 bytes)

65. [TowerTalk] 40M 4-Square on 30M (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Mon, 4 Oct 1999 15:28:59 -0400
I have a ground-mounted 40M 4-square with 60 radials per full-sized element. The feed points have current baluns connected to RG-11/U phasing lines and the phasing box is an old Colatchco unit. Every
/archives//html/Towertalk/1999-10/msg00063.html (7,871 bytes)

66. [TowerTalk] Cable Lubrication (was: Crank-Up tower owners, please read) (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Thu, 14 Oct 1999 00:27:28 -0400
Anyway, that's not the important question here. Please read on. As an owner of a two-year old U.S. Tower MA770MDP, I've found this very important subject to be incredibly frustrating. When I first bo
/archives//html/Towertalk/1999-10/msg00397.html (11,794 bytes)

67. [TowerTalk] Non-permanent towers; what to do? (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Sun, 24 Oct 1999 01:11:55 -0400
Kelly, If you really want something temporary, you should consider a crank-up military surplus portable tower like the AB-577/GRC. They are available from Ontario Surplus in Ontario, NY. Check out th
/archives//html/Towertalk/1999-10/msg00673.html (9,678 bytes)

68. [TowerTalk] RE: 80 meter 4 square array notes from N0AH (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Wed, 1 Sep 1999 11:57:45 -0400
elevated feed Jim at Comtek recommends that all of the feedpoints be at the same level, but I'm not sure what happens if you don't do that. Presumably the pattern would be affected, but I don't know
/archives//html/Towertalk/1999-09/msg00015.html (9,071 bytes)

69. [TowerTalk] 9913 Question (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Thu, 2 Sep 1999 14:22:20 -0400
I used a 250-foot run of 9913 buried just under the sod for several years with no water problems. The connectors were well-sealed against weather at both ends. YMMV! But since you have the coax, use
/archives//html/Towertalk/1999-09/msg00054.html (7,798 bytes)

70. [TowerTalk] AEA CIA-HF (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Sat, 4 Sep 1999 11:51:12 -0400
take a step up. Did I make a good decision? I think so. I've used the MFJ, Autek and CIA-HF, and there's no question in my mind that the AEA is the superior instrument. It's the most accurate and th
/archives//html/Towertalk/1999-09/msg00095.html (7,808 bytes)

71. [TowerTalk] Outdoor box (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Wed, 29 Sep 1999 00:13:15 -0400
There are metal and plastic commercial outdoor utility boxes that come in a wide variety of shapes and sizes (Graybar makes a nice line.) Typically, they have access doors that are sealed with a foam
/archives//html/Towertalk/1999-09/msg00642.html (7,695 bytes)

72. [TowerTalk] RE: Tower Grounding Query! (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Thu, 12 Aug 1999 10:56:01 -0400
I have some additions questions on this subject. I definitely agree with that, although it seems to me that as long as each tower has its own, adequate ground system there would be no harm in tying t
/archives//html/Towertalk/1999-08/msg00211.html (12,669 bytes)

73. [TowerTalk] RE: Tower Grounding Query! (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Thu, 12 Aug 1999 13:25:06 -0400
According to the Polyphaser book (and the ARRL Antenna Book), you should have coax and rotor protectors at both ends of the line. I think the reasoning is that a lightning stroke can induce current
/archives//html/Towertalk/1999-08/msg00217.html (8,617 bytes)

74. [TowerTalk] radials-bare vs ins.-wire size (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Fri, 13 Aug 1999 14:51:57 -0400
Dan, FWIW, I used 60 number 16 bare solid 1/4-wave radials on each element of my 40M 4-square, pinned to the surface with bobby pins and bonded in the center square at the overlap points (possibly no
/archives//html/Towertalk/1999-08/msg00232.html (9,729 bytes)

75. [TowerTalk] Presets for Alliance HD-73 (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Sun, 15 Aug 1999 19:47:48 -0400
Does anyone know of a mod for the Alliance HD-73 controller, or availability of a replacement controller, to add presets? 73, Dick WC1M -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Subm
/archives//html/Towertalk/1999-08/msg00249.html (6,913 bytes)

76. [TowerTalk] Mast steps (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Tue, 17 Aug 1999 03:57:48 -0400
What's the general opinion of using an adjustable rock-climbing lanyard? I've seen 6-foot woven lanyards with a series of woven loops sewn to them. You thread one end of the lanyard through one of th
/archives//html/Towertalk/1999-08/msg00269.html (10,499 bytes)

77. [TowerTalk] AB-577/GRC Installed (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Fri, 20 Aug 1999 00:58:11 -0400
In an effort to quickly add a second tower and tribander to my single-op two-radio contest station for the upcoming season, I recently completed installation of a 48' AB-577/GRC military surplus port
/archives//html/Towertalk/1999-08/msg00332.html (9,331 bytes)

78. [TowerTalk] Force 12 C3E Installed (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Fri, 20 Aug 1999 01:31:00 -0400
As I mentioned in a previous post, in an effort to quickly add a second tower and tribander to my single-op two-radio contest station for the upcoming season, I recently completed installation of a 4
/archives//html/Towertalk/1999-08/msg00334.html (10,158 bytes)

79. [TowerTalk] tensioning guys (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Sat, 21 Aug 1999 12:38:04 -0400
I have a Loos PT-2 that I use to measure and adjust the tension of the pull-down cable on my U.S. Tower MA-770MDP. It works well for that. But what about measuring tension on types of cable for which
/archives//html/Towertalk/1999-08/msg00364.html (11,989 bytes)

80. [TowerTalk] 9913F, etc (score: 1)
Author: Dick Green" <dick.green@valley.net (Dick Green)
Date: Mon, 30 Aug 1999 13:52:25 -0400
FWIW, I've got about 150 ft of 9913F in use at the moment. All was purchased from Davis RF last fall. About 50 feet is being used for short flexible links inside the shack and at the 2-radio switchin
/archives//html/Towertalk/1999-08/msg00530.html (9,634 bytes)


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