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References: [ +from:towertalk@infinichron.com: 11 ]

Total 11 documents matching your query.

1. Re: [TowerTalk] Rotator at bottom of tower (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Sat, 21 Jan 2006 03:33:29 -0700
Stan, I don't think that anyone has mentioned the additional wind loading of the 105 foot mast. 105 feet times 4"/12" pipe diameter times about 0.6 to convert to equivalent flat plate amounts to an a
/archives//html/Towertalk/2006-01/msg00409.html (10,424 bytes)

2. Re: [TowerTalk] Using Plenum Plenum Cable (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Wed, 21 Jun 2006 21:21:51 -0600
Roger, T in Base-T indicates twisted pair 2 in Base-2 refers to a maximum of 200 meter long segments using thin coax 5 in Base-5 refers to a maximum of 500 meter long segments using thick coax Now, i
/archives//html/Towertalk/2006-06/msg00498.html (7,769 bytes)

3. Re: [TowerTalk] Stacking Dissimilar Antennas (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Sat, 19 Aug 2006 01:21:44 -0600
Ed, First, you are correct that even if you didn't try to use the two antennas in a stack, you would definitely see a benefit in having two antennas at different heights in respective of vertical tak
/archives//html/Towertalk/2006-08/msg00628.html (9,218 bytes)

4. Re: [TowerTalk] Info on Andrew FHJ4-50? (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Thu, 05 Oct 2006 23:14:17 -0600
"The FHJ cable was discontinued over 20 years ago. It is said to have been replaced due to its poor long-term attenuation stability. The attenuation per foot increases over time." http://lists.conte
/archives//html/Towertalk/2006-10/msg00169.html (8,112 bytes)

5. Re: [TowerTalk] Rohn 45 Bracketed Tower (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Wed, 04 Apr 2007 02:59:07 -0600
Bob, The 46 foot figure refers to a second bracket at that height (46 feet). The tower requires two brackets. So, the line you are reading is for a 60 foot tower which is bracketed at 23 feet and 46
/archives//html/Towertalk/2007-04/msg00097.html (8,028 bytes)

6. [TowerTalk] Stacking Antennas and Windloads (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Fri, 06 Apr 2007 12:11:46 -0600
Thanks for all of the responses to my "dilemma" that I am having to endure in moving to the East Coast. I have an additional question. (Won't be the last time I say that.) I would like to put up a C3
/archives//html/Towertalk/2007-04/msg00149.html (8,071 bytes)

7. Re: [TowerTalk] Pole Mount for Beam Antenna (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Fri, 27 Apr 2007 22:07:46 -0600
Rather than suggestions that the idea be dropped, I am hoping that someone actually does have some useful thoughts on how to do this. This is also a topic that is on my to do list. I have an existing
/archives//html/Towertalk/2007-04/msg00575.html (8,546 bytes)

8. Re: [TowerTalk] Horizontal tower movement at the top (score: 1)
Author: Gerald Boutin <towertalk@infinichron.com>
Date: Tue, 08 May 2007 01:07:38 -0600
Clay, If you stick a 25G on a pier pin, you can pretty much ignore what typical tower movement might be. The tree is going to be holding up the tower. I sort of liked the suggestion to put up a ladde
/archives//html/Towertalk/2007-05/msg00093.html (10,711 bytes)

9. Re: [TowerTalk] Corroded copper conductivity? (score: 1)
Author: "Gerald Boutin" <towertalk@infinichron.com>
Date: Tue, 28 Aug 2007 21:55:41 -0300
Has anyone measured corroded copper inductor Q vs. shiny new copper at HF frequencies? Specifically, I wonder if there'd be any practical benefit to polishing and coating a 3/4" copper pipe transmitt
/archives//html/Towertalk/2007-08/msg00792.html (8,107 bytes)

10. [TowerTalk] Antenna Windload Manufacturer Ratings (score: 1)
Author: "Gerald Boutin" <towertalk@infinichron.com>
Date: Fri, 25 Sep 2009 09:47:41 -0300
I am curious about how antenna manufacturers and antenna mechanical design programs determine the maximum windload ratings for an antenna, in particular yagis. It occurs to me that for a typical yagi
/archives//html/Towertalk/2009-09/msg00438.html (7,364 bytes)

11. Re: [TowerTalk] Rotating a dipole on a side-arm (score: 1)
Author: "Gerald Boutin" <towertalk@infinichron.com>
Date: Thu, 26 Nov 2009 00:11:18 -0400
you You could both be right on the figures that you are seeing / expecting. According to 4nec-2, a 40 meter dipole at 78 feet up shows about 12 db FS for a take off angle of 25 degrees, where it has
/archives//html/Towertalk/2009-11/msg00465.html (8,410 bytes)


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