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1. Re: [TowerTalk] Chicken Wire Ground Screen (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sat, 13 Jun 2009 13:27:00 -0400; Jim, it is my understanding that unless the radials provide a perfect shield over the ground, some of the return current will flow through the radials and the rest through the ground. More radials pr; /archives//html/Towertalk/2009-06/msg00351.html (10,527 bytes)
2. Re: [TowerTalk] Chicken Wire Ground Screen (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sat, 13 Jun 2009 10:41:18 -0400; Pete, thanks for that tip. I was at Dayton, but only briefly and didn't have a chance to attend any forums. 73, Joe K2XX _______________________________________________ ______________________________; /archives//html/Towertalk/2009-06/msg00344.html (10,439 bytes)
3. [TowerTalk] Chicken Wire Ground Screen (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Fri, 12 Jun 2009 17:06:29 -0400; I know that there are several folks out there who are using chicken wire ground screens in addition to radials for their verticals. I'm curious to know if the various sections of chicken wire are (1); /archives//html/Towertalk/2009-06/msg00318.html (7,880 bytes)
4. Re: [TowerTalk] Yaesu G-2800DXA Not Rotating (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Thu, 11 Jun 2009 14:50:36 -0400; I had a similar symptom with a 2800, i.e, restricted turning range. In my case, the bolts holding the mast clamps to the rotor body had vibrated loose and fallen out. A quick inspection will reveal w; /archives//html/Towertalk/2009-06/msg00282.html (8,745 bytes)
5. Re: [TowerTalk] DAVIS RF response: Alternatives & Comscope SFX-500 data vs. LMR & LDF4 (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sun, 07 Jun 2009 22:17:08 -0400; So I have now learned from several respondents. 73 and TNX to all, Joe K2XX _______________________________________________ _______________________________________________ TowerTalk mailing list Towe; /archives//html/Towertalk/2009-06/msg00213.html (10,144 bytes)
6. Re: [TowerTalk] DAVIS RF response: Alternatives & Comscope SFX-500 data vs. LMR & LDF4 (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sun, 07 Jun 2009 14:14:48 -0400; Steve, many thanks for your reply regarding the Commscope SFX-500. Yours was the only reply that I received, and I have to conclude that Commscope is a new player in the coax game and that there is n; /archives//html/Towertalk/2009-06/msg00202.html (16,255 bytes)
7. [TowerTalk] 1/2" Commscope 50 ohm hardline (SFX-500) (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sat, 06 Jun 2009 14:48:40 -0400; Anyone have experience with this hardline? Its attenuation at 150 MHz is 1.2 dB vs about 0.9 db for LDF4-50a and 1.5 for LMR-400. There are no data available for frequencies below 150 MHz. 73, Joe K2; /archives//html/Towertalk/2009-06/msg00185.html (6,816 bytes)
8. Re: [TowerTalk] Balanced Feedline for Ground Mounted Vertical? (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sun, 24 May 2009 10:56:01 -0400; Rick, Jerry, Dave, Jan, Jim L. and Jim B.; many thanks for your informative replies. Jan, I will dig up that copy of HR and check the article by N4UH. First of all, I acknowledge that 2,000 feet of l; /archives//html/Towertalk/2009-05/msg00436.html (14,982 bytes)
9. [TowerTalk] Balanced Feedline for Ground Mounted Vertical? (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sat, 23 May 2009 12:00:34 -0400; If one had to install a ground mounted vertical as far as 2,000 feet from the shack and wanted to avoid the expense of using low loss coax, could a balanced feedline be used as an alternative? The id; /archives//html/Towertalk/2009-05/msg00409.html (8,000 bytes)
10. Re: [TowerTalk] Parts fo A HAM II (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Thu, 12 Mar 2009 15:36:07 -0400; The original Ham IIs had aluminum ring gears. You should replace it with a steel gear and an improved heavy duty brake. Both are available from C.A.T.S. I have been told by Craig of CATS that it'll t; /archives//html/Towertalk/2009-03/msg00266.html (8,090 bytes)
11. Re: [TowerTalk] Wire Antenna Suggestions Wanted (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Wed, 04 Mar 2009 10:08:08 -0500; Actually, I was going to mention the EDZ when making my suggestion. Adding (drooping) three extra feet to each end to make 116' is 30M EDZ and a true half wave dipole on 75M. I have successfully used; /archives//html/Towertalk/2009-03/msg00090.html (10,125 bytes)
12. Re: [TowerTalk] Wire Antenna Suggestions Wanted (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Tue, 03 Mar 2009 11:40:42 -0500; I'd install either a 110' or 135' doublet fed with balanced feedline. In the latter case, you could let the extra wire droop in equal lengths from each end, but the difference in performance with the; /archives//html/Towertalk/2009-03/msg00052.html (8,356 bytes)
13. Re: [TowerTalk] Betr.: Topband: Titanex Verticals (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Tue, 10 Feb 2009 15:28:38 -0500; Thanks for the info, Andi. I've copied the TT list on this reply because several others suspected that Titanex might be out of business. 73 es 55, Joe _______________________________________________; /archives//html/Towertalk/2009-02/msg00261.html (7,926 bytes)
14. [TowerTalk] Titanex Verticals (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Mon, 09 Feb 2009 11:34:00 -0500; Does anyone know if Titanex has a US distributor? I wrote their German office asking for that information but received no reply. 73, Joe K2XX _______________________________________________ _________; /archives//html/Towertalk/2009-02/msg00205.html (6,687 bytes)
15. Re: [TowerTalk] LM-470 at 100 MPH (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Wed, 24 Dec 2008 10:23:48 -0500; That scenario is consistent with the failure that I experienced several years ago. We were visited by a sudden mini-tornado, and I'd guesstimate that the wind peaked at around 100 mph. Tower was supp; /archives//html/Towertalk/2008-12/msg00584.html (11,472 bytes)
16. Re: [TowerTalk] LM-470 and a T2X Rotor (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Wed, 03 Dec 2008 11:49:49 -0500; Bill, I had problems fitting the T2X inside my LM-470s. However, I was advised by Skip, AJ6Y, who routinely installs tower systems, to place 1-2" spacers under the rotor plate. The spacers are made f; /archives//html/Towertalk/2008-12/msg00052.html (8,912 bytes)
17. Re: [TowerTalk] Quad questions, long(ish) (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Tue, 02 Dec 2008 11:19:28 -0500; Martin, I can comment on your plan to use relays to short out the inactive drivers. It adds unnecessary complications. I do agree that it is essential to short the inactive driver elements, but that; /archives//html/Towertalk/2008-12/msg00024.html (13,513 bytes)
18. Re: [TowerTalk] Coax standoffs (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Tue, 18 Nov 2008 15:51:45 -0500; While I haven't dealt with Tashjian in about three years, the communication lapses and delays reported here are about the same as I experienced. It is my distinct impression that Tashjian Towers is a; /archives//html/Towertalk/2008-11/msg00465.html (9,415 bytes)
19. [TowerTalk] WTB: 40M Quad Spreaders (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Sun, 20 Jul 2008 13:35:05 -0400; If anyone out there has some 40M quad spreaders in good condition that they're willing to part with, I'd be interested in buying one or more. I prefer Cubex, but any manufacturer will do. Please let; /archives//html/Towertalk/2008-07/msg00549.html (7,157 bytes)
20. Re: [TowerTalk] positive pull down for Tri-ex towers (score: 1): Author: Joe Giacobello <k2xx@swva.net>; Date: Thu, 10 Jul 2008 15:59:35 -0400; That is absolutely right about the top section hanging up when trying to lower the tower in a strong wind. The wind tilts it so that it will not fall freely until the wind lets up. If you had been cr; /archives//html/Towertalk/2008-07/msg00256.html (11,126 bytes)

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