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Total 71 documents matching your query.

61. Re: [TowerTalk] attic insulation (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Wed, 22 Nov 2023 22:14:01 -0700
I concur on the Spam. Its either that, or Scam. Tom K0SN _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.co
/archives//html/Towertalk/2023-11/msg00055.html (10,329 bytes)

62. [TowerTalk] Prop Pitch Rotors and water intrusion (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Tue, 16 Jan 2024 08:19:15 -0700
In the case of a prop pitch rotor mounted underneath a rotor shelf in a tower, does anybody here have experience regarding the effectiveness of the rubber seal included in the prop pitch ? Does it do
/archives//html/Towertalk/2024-01/msg00032.html (6,861 bytes)

63. Re: [TowerTalk] Electrical Tape (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Fri, 8 Mar 2024 07:30:59 -0700
StanThe Duck tape in your Amazon link looks like your typical black electrical tape that hams use for wrapping coax connectors, etc., which would compare with Scotch 33 a lot closer than Scotch 44. T
/archives//html/Towertalk/2024-03/msg00023.html (8,620 bytes)

64. [TowerTalk] Modeling a Yagi in EZNec (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Wed, 29 May 2024 09:27:16 -0600
Those who use NEC to model a yagi, do you include the lead lengths in the model for the connecting wires that go from the balun to the feed terminals of the driven element? If so, do you model them a
/archives//html/Towertalk/2024-05/msg00106.html (7,826 bytes)

65. Re: [TowerTalk] Help- tower (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Sat, 14 Dec 2024 07:04:57 -0800
ArtIf I were in your shoes I would talk to an engineer and ask what he predicts the force required to withdraw that blob of concrete from your soil. Then youd have something to tell a crane company.
/archives//html/Towertalk/2024-12/msg00065.html (9,297 bytes)

66. Re: [TowerTalk] A different dipole design (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Sun, 22 Dec 2024 09:34:22 -0700
Simpler maybe is just drop the ends of the dipole straight down to make it fit the available space? I have done it many times and I don't believe there is any sacrifice in performance. It does requir
/archives//html/Towertalk/2024-12/msg00076.html (10,814 bytes)

67. Re: [TowerTalk] small aluminum tubing source (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Fri, 14 Mar 2025 16:50:16 -0600
I went after some aluminum at a local supplier today. The price made me drop my teeth. They said the hoarders are in high gear due to the tariffs and prices are through the roof. Good luck. K0SN ____
/archives//html/Towertalk/2025-03/msg00023.html (10,479 bytes)

68. Re: [TowerTalk] vertical antenna feedpoint (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Sat, 15 Mar 2025 19:19:41 -0600
You got it. The extra 35 ohms is all loss resistance, heating up the worms. Add radials. K0SN _______________________________________________ _______________________________________________ TowerTalk
/archives//html/Towertalk/2025-03/msg00036.html (7,589 bytes)

69. [TowerTalk] Prop Pitch Rotors (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Wed, 2 Apr 2025 13:29:22 -0600
Recently came into possession of a K7NV rebuild. It has a mast clamp for 2". Anybody know of a source for a 3" mast clamp? Can I assume if I did find one it would be a simple swap or are there hoops
/archives//html/Towertalk/2025-04/msg00000.html (6,297 bytes)

70. Re: [TowerTalk] New Yagis on Existing GM Roof Tower (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Sun, 6 Apr 2025 06:22:06 -0600
DaveOne piece of info that figures heavily into this equationWhat are you using for fasteners to attach the legs of the tower to the roof rafters, how many, and if they are some type of lag screws, a
/archives//html/Towertalk/2025-04/msg00022.html (11,295 bytes)

71. Re: [TowerTalk] re; STEPPir ANTENNAs (score: 1)
Author: Tom Hellem <tom.hellem@gmail.com>
Date: Mon, 7 Apr 2025 09:05:55 -0600
RonThe reason stacked tribanders don't work as well as monobanders is that you can only optimize the stacking distance for one band. I have used a stack of tribanders, though, and I can attest they a
/archives//html/Towertalk/2025-04/msg00043.html (12,667 bytes)

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