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Total 108 documents matching your query.

81. [TowerTalk] Insulated Wire Wrapped Back (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Fri, 2 May 97 16:55:38 -0400
I've done the same with #12 stranded THHN black insulated wire, WITHOUT the knot. That's right, the wire is looped through the insulator and wrapped back on itself. Use a really long pigtail, like 8-
/archives//html/Towertalk/1997-05/msg00056.html (7,547 bytes)

82. [TowerTalk] Limited Space (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Fri, 2 May 97 17:31:34 -0400
I had (well, it is still in my garage, interested?) a HF4B up at 35' at my old QTH, before I replaced it with an A3S. Today, my primary antenna for 40-10m is an R7000. At any reasonable height, the H
/archives//html/Towertalk/1997-05/msg00061.html (7,231 bytes)

83. [TowerTalk] Low beam vs. higher dipoles? (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Fri, 9 May 97 10:01:36 -0400
At my last QTH, I had a similar situation. I had a doublet at 45-50 feet, and a beam at 35 feet, just 10 feet above my house. At first I had an HF4B, later an A3S. My experience was that the beam was
/archives//html/Towertalk/1997-05/msg00270.html (8,940 bytes)

84. [TowerTalk] Al corrosion/connector seals (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Wed, 23 Apr 97 18:44:16 -0400
Depends on the type of rivet. Some are designed to leave a solid center section. Frankly, if the riven leaves a tube that isn't filled, then it will eventually fail when subject to tension/compressio
/archives//html/Towertalk/1997-04/msg00745.html (8,048 bytes)

85. [TowerTalk] G5RV (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Fri, 25 Apr 97 11:37:20 -0400
Rather than a G5RV, I suggest you put up a simple doublet (dipole) fed with tuned feeders (open wire or twin lead). It will have as good as performance as the G5RV. The G5RV isn't magical. It is mere
/archives//html/Towertalk/1997-04/msg00784.html (9,423 bytes)

86. [TowerTalk] Al corrosion/connector seals (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Mon, 28 Apr 97 10:36:40 -0400
I must say, this tip has allowed me to separate an A3S boom that has been stuck since I took it down two years ago. I had tried heavy application of penetrating silicone libricants and lots of pressu
/archives//html/Towertalk/1997-04/msg00867.html (8,084 bytes)

87. [TowerTalk] G5RV (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Wed, 30 Apr 97 12:11:34 -0400
That's A*A*4LR, thank you. (And I thought I only had this problem on the air!) This avoids the balun, but it has the same problem with potentially high voltages, so use solid dielectric coax for maxi
/archives//html/Towertalk/1997-04/msg00942.html (9,310 bytes)

88. [TowerTalk] Housekeeping (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Thu, 6 Mar 97 14:21:16 -0500
You shouldn't any more. All of the contesting.com reflectors have been changed so that the name of the mailing list is prepended to the subject. (ie [TowerTalk]) So, just look for a subject that does
/archives//html/Towertalk/1997-03/msg00077.html (8,415 bytes)

89. [TowerTalk] Butternut HF-5B Butterfly Beam (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Tue, 11 Mar 97 14:00:11 -0500
Sorta. I have experience with its immediate predecessor - the HF4B, which covers 20m, 15m, 12m and 10m (ie no 17m). While most beams are flat, the Butternut is 3 dimensional. Although the elements ar
/archives//html/Towertalk/1997-03/msg00156.html (9,817 bytes)

90. "Mike Faucheaux" <mikef@sat.net>: This is the phone co. at (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Tue, 11 Feb 97 09:47:44 -0500
I hate to spoil your fun, but you don't seem to be well informed. There is no such action taking place. Yes, which docket would that be? Hmm? Phone companies can't make additional charges unless per
/archives//html/Towertalk/1997-02/msg00233.html (9,814 bytes)

91. Coax Wind Resistance Grease (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Mon, 17 Feb 97 17:33:41 -0500
If any sort of grease had ANY affect on wind resistance, airliners would be covered with it. Daily. Think about it -- what do you think is the major expensive of any airliner (other than the capital
/archives//html/Towertalk/1997-02/msg00369.html (7,889 bytes)

92. Coax Wind Resistance Grease (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Wed, 19 Feb 97 12:00:50 -0500
saved 460 to remember it Sounds about right for Imron (an extremely durable polyurethane paint). Yet, most airliners paint part of their planes for marketing reasons.... Quantas has the coolest pain
/archives//html/Towertalk/1997-02/msg00418.html (9,397 bytes)

93. True North in One Sentence (again) (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Wed, 8 Jan 97 11:15:47 -0500
Actually, there's some variation in sunrise/sunset times. (ie the latest sunrise and earliest sunset don't occur on Dec 21. Instead one occurs two weeks before, the other two weeks after. Same thing
/archives//html/Towertalk/1997-01/msg00188.html (9,157 bytes)

94. Your erection questions (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Mon, 2 Dec 96 17:32:48 -0500
I recently had to mix 2 1/2 60lb bags for an R7000 mast by hand. (150 lbs) I have one of these mixing paddles, but lack a good 1/2" drill to run it. My 3/8" drill just didn't have the umpf to turn t
/archives//html/Towertalk/1996-12/msg00026.html (7,748 bytes)

95. Tower Ratings - Stupid Question (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Thu, 19 Dec 96 15:07:47 -0500
This raises an interesting question. If the lowest wind in the TIA standards is 70 mph, why do tower manufacturers specify tower capacity in terms of 50 mph wind? Since wind pressure increases with
/archives//html/Towertalk/1996-12/msg00339.html (8,530 bytes)

96. Tower Ratings - Stupid Question (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Fri, 20 Dec 96 17:22:53 -0500
The density of the air hasn't really changed, and the wind speed is still the wind speed. Yea, like *I*'m in a better position to perform these calculations, even if I were a PE (which I'm not). How
/archives//html/Towertalk/1996-12/msg00378.html (11,067 bytes)

97. Corrosion Inhibitor Noalox at Home Depot (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Tue, 12 Nov 96 10:04:15 -0400
I recently asked Steve where to find a corrosion inhibitor for assembling my R7000. He said that KLM had some good stuff, but that I could use anything I found as long as it is designed for Aluminum.
/archives//html/Towertalk/1996-11/msg00099.html (8,002 bytes)

98. Followup - Noalox at Home Depot (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Wed, 13 Nov 96 09:32:01 -0400
Several people wrote to me describing Noalox as a greenish substance that contained no conductive component -- that it was merely a chemically neutral grease. They explained that this material wasn't
/archives//html/Towertalk/1996-11/msg00121.html (8,289 bytes)

99. Followup - Noalox at Home Depot (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Wed, 20 Nov 96 09:32:45 -0400
Just when you thought this thread was dead.... Now wait one second. I'm not metallurgist, but I do know enought about the properties of aluminum to know that using a wire brush to remove aluminum oxi
/archives//html/Towertalk/1996-11/msg00176.html (9,390 bytes)

100. Telephone RFI Solutions (score: 1)
Author: aa4lr@radio.org (Bill Coleman AA4LR)
Date: Thu, 21 Nov 96 12:11:49 -0500
I assume RFI is an antenna system problem.... In the SSB SS, I had to QRT early due to a neighbor's RFI problem. The problem apparently stems from my new R7000 vertical. I've had no reports from my 1
/archives//html/Towertalk/1996-11/msg00178.html (8,404 bytes)


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