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21. [TowerTalk] EZNEC file for EX-14 (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Mon, 13 Apr 2020 12:02:04 -0700
Looking for an EZNEC model for a Hy-Gain Explorer 14. If you have one to share, please contact me. 73, John AI6LY _______________________________________________ _____________________________________
/archives//html/Towertalk/2020-04/msg00084.html (6,955 bytes)

22. Re: [TowerTalk] Rohn 35G "Motorolla" (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Thu, 22 Oct 2020 08:57:03 -0700
For accessories for the 35G, I had mine fabbed by Norms fab, W8TTH, www.normsfab.com, in Michigan. His work is very good, his prices are reasonable, and his turnaround time is long. I understand he h
/archives//html/Towertalk/2020-10/msg00218.html (7,822 bytes)

23. [TowerTalk] feedpoint capacitors (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Sun, 25 Apr 2021 09:04:32 -0700
Looking for advice on best type capacitors for legal limit L-C match at wire dipole feedpoint. Am using Russian HV doorknob type currently, apparently high TCC since SWR exhibits thermal drift. Also
/archives//html/Towertalk/2021-04/msg00206.html (6,679 bytes)

24. Re: [TowerTalk] feedpoint capacitors (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Sun, 25 Apr 2021 15:37:41 -0700
Yes the caps I'm using are the size of skateboard wheels. The wire dipole is a coil loaded inverted vee. I added the L-C match because I wanted to operate it off "native" resonance. John AI6LY ______
/archives//html/Towertalk/2021-04/msg00209.html (6,897 bytes)

25. Re: [TowerTalk] Phillystran Tension Gage (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Mon, 12 Jul 2021 20:53:10 -0700
Hi Dave, After searching far and wide to come to the conclusion there is none commercially available, I built my own tension gauge based on a suggestion from K6OK who did the engineering on my tower.
/archives//html/Towertalk/2021-07/msg00047.html (8,062 bytes)

26. Re: [TowerTalk] Loos Gauge for Philly (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Tue, 13 Jul 2021 09:33:38 -0700
Bill - as noted in this string, nowhere (at least nowhere obvious) in Philly documentation is there a requirement for EHS tails. I didn't have them on my small tower. When I upgraded the installation
/archives//html/Towertalk/2021-07/msg00058.html (7,813 bytes)

27. Re: [TowerTalk] Loos Gauge for Philly (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Tue, 13 Jul 2021 10:43:53 -0700
and careless gardeners :) I dont think the last fifteen feet is a requirement. More for grass fires, kid with a pocket knife, or cows. Sent from my iPad ______________________________________________
/archives//html/Towertalk/2021-07/msg00061.html (8,627 bytes)

28. Re: [TowerTalk] Polyamide (Stauff) Insulator Clamps (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Thu, 24 Mar 2022 19:59:39 -0700
I remember convincing myself that Stauff black polyamide (PA) clamps were ok when I constructed my 40M yagi. I dug up the data again to refresh my memory. This is probably more than anyone wants to k
/archives//html/Towertalk/2022-03/msg00089.html (10,938 bytes)

29. Re: [TowerTalk] Polyamide (Stauff) Insulator Clamps (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Fri, 25 Mar 2022 11:43:26 -0700
References for the polyamide data: 1. dielectric constant and volume resistivity: see http://www.rfcafe.com/references/electrical/dielectric-constants-strengths.h tm, and https://www.professionalplas
/archives//html/Towertalk/2022-03/msg00091.html (9,360 bytes)

30. Re: [TowerTalk] Resistor Across a Choke Balun (score: 1)
Author: "John Keating" <john.keating@sbcglobal.net>
Date: Fri, 1 Jul 2022 09:05:15 -0700
Either a resistor or choke will work to bleed off static, as others have stated. But, note that a suitably sized resistor introduces a high RC time constant, which in the event of a lightning strike
/archives//html/Towertalk/2022-07/msg00002.html (7,772 bytes)

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