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Total 1317 documents matching your query.

341. [TowerTalk] Silicone hose from Flex Technologies (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 23 Jul 2012 02:31:44 -0700
When you need custom silicone parts, such as tube chimneys, they can often be made completely from RTV sealant. Just find or make a suitable form, smear sealant into it, let it set, then remove the f
/archives//html/Towertalk/2012-07/msg00259.html (8,357 bytes)

342. [TowerTalk] Wind Load Spec Differences Between Tower and (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sun, 5 Aug 2012 17:18:43 -0700
I tried to get an answer from SteppIR to no avail so I thought I would reach out to the TT community. Searched TT archives and googled for answers. I've read K7NV's and W6NL's writeup as well about t
/archives//html/Towertalk/2012-08/msg00045.html (10,427 bytes)

343. [TowerTalk] Crank-ups.....do NOT lubricate your cables (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 4 Sep 2012 01:22:22 -0700
6, 9, + 11. This stuff is literally poured onto those cables, right at the drum, via an oiler device. Its just penetrating oil, to lubricate the inner strands. Nobody is changing cables every 3 years
/archives//html/Towertalk/2012-09/msg00049.html (8,998 bytes)

344. Re: [TowerTalk] Crank-ups.....do NOT lubricate your cables (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 4 Sep 2012 18:20:06 -0700
I"m surprised we haven't heard from at least one ex-navy man who might be familiar with their cable care routine. I know they have "oilers" whose job it is to lubricate/grease the ships cables. There
/archives//html/Towertalk/2012-09/msg00068.html (15,454 bytes)

345. [TowerTalk] Crank-ups.....do NOT lubricate your cables (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 4 Sep 2012 21:20:53 -0700
I helped to install LUSO towers at DL3KO together with LUSO engineers. All the tower cabling was lubricated with grease after erection and should be repeated regularly. . 73 Peter, DJ7WW the middle o
/archives//html/Towertalk/2012-09/msg00074.html (9,607 bytes)

346. [TowerTalk] 5000 psi vs 3500 psi concrete? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 25 Sep 2012 03:23:53 -0700
Thanks... Rich N7TR ex KI3V, N3AMK, WB3JOV www.n7tr.com<http://www.n7tr.com> Telnet: dxc.n7tr.com N7TR DXCluster for some applications. Here in BC, the standard used to be 20 mpa ( 2900 psi). Its now
/archives//html/Towertalk/2012-09/msg00404.html (11,638 bytes)

347. [TowerTalk] Choice of aluminum (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 15 Oct 2012 01:51:17 -0700
Some clarifications - Re the tolerances of tubing diameters: Tube Service provides drawn Al tube tolerances on their web site, see http://tubeservice.com/Content/TechnicalData.pdf For the 1 to 2" od
/archives//html/Towertalk/2012-10/msg00221.html (10,726 bytes)

348. [TowerTalk] TowerTalk If you had a choice (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Fri, 19 Oct 2012 00:46:50 -0700
I'd allocate at least $300 for a decent library of technical books on radio and electronics, at least $200 of which is about antennas and transmission lines, and then spend lots of TIME studying them
/archives//html/Towertalk/2012-10/msg00320.html (7,762 bytes)

349. [TowerTalk] Crank up tower bracing rubbing against cable (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Fri, 19 Oct 2012 03:35:12 -0700
Hi All, I've discovered that my less than a year old TX-472 tower has three places where the steel cable is rubbing against the tower.? Attached below is a link to some photos of the problem.? In one
/archives//html/Towertalk/2012-10/msg00322.html (9,726 bytes)

350. [TowerTalk] Rohn 45g (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 25 Oct 2012 20:51:28 -0700
How do I tell what type of Rohn 45 tower sections I have? Looks just like regular 45-55-65, with hollow legs, except that the normal Z bracing has been supplemented with and extra brace. A buddy used
/archives//html/Towertalk/2012-10/msg00383.html (7,692 bytes)

351. [TowerTalk] NEW Tail Twister Rotator (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 3 Nov 2012 00:37:17 -0700
If interested. NEW Tail Twister Rotator still in original box. Includes Contains (All new in box), New control head, New hardware, New connectors, manual New Warranty Registration card. I purchased o
/archives//html/Towertalk/2012-11/msg00020.html (9,774 bytes)

352. [TowerTalk] hardline bending radius (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Tue, 20 Nov 2012 01:54:08 -0800
times It's an Andrew standard for their non-braided coaxes. Cheers, Steve K7LXC TOWER TECH of a lot less than Andrew heliax. The RFS stuff uses a corrugated cu center conductor as well as the either
/archives//html/Towertalk/2012-11/msg00237.html (9,145 bytes)

353. [TowerTalk] hardline bending radius (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 21 Nov 2012 07:43:18 -0800
That's a bit of over-generalization. Both RFS and Andrew make standard and flexible versions of their cables. The construction is virtually identical on comparable versions. -Steve K8LX corrugated ce
/archives//html/Towertalk/2012-11/msg00261.html (11,164 bytes)

354. [TowerTalk] re beam antenna truss (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Mon, 24 Dec 2012 23:47:45 -0800
Yo, Steve is looking for ideas on how best to "truss" a boom. I'm amazed that no one has also suggested that no matter what he ends up using, he should make sure to use thimbles to protect the wire/r
/archives//html/Towertalk/2012-12/msg00135.html (9,476 bytes)

355. [TowerTalk] what is used for gear redux on newer UST products ?? (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Fri, 4 Jan 2013 03:26:16 -0800
I currently have a hub city speed reducer gear box on my HDX-689 tower. Now this is the original 5000 lb tower. Is UST using the same style speed reducer gear boxs in their latest offerings ?? The en
/archives//html/Towertalk/2013-01/msg00031.html (7,140 bytes)

356. [TowerTalk] Source for 2" OD Mast (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 5 Jan 2013 06:19:23 -0800
Anyone know of a source for a 2" OD 5 to 20 foot steel mast in the vicinity of the S.F. Bay Area? Something with around 87 k psi yield strength would be ideal. Lots of on-line places sell these, but
/archives//html/Towertalk/2013-01/msg00068.html (10,244 bytes)

357. [TowerTalk] Bye Bye Deer (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sun, 6 Jan 2013 06:43:52 -0800
Any suggestions on how to keep deer out of the yard and away from the antennas? Pesky animals are always snagging my top loading lines and bending the vertical. Doug Sure. A- .308 rifle with soft nos
/archives//html/Towertalk/2013-01/msg00087.html (7,158 bytes)

358. [TowerTalk] Free ARRL Mast calculator (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 10 Jan 2013 00:27:00 -0800
Folks have asked me about the mast calculator that was in the ARRL ant book. http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=17127 Download the excel spreadsheet... and it will provide hours of entert
/archives//html/Towertalk/2013-01/msg00125.html (7,333 bytes)

359. [TowerTalk] Trylon self supporting tower 80 ft fall report (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Thu, 31 Jan 2013 10:02:26 -0800
Charles: Sorry to learn of your Trylon problems. Of course, you know it was overloaded. Based on your estimate that the top was 12 inches across you probably have a Titan T-300-80 http://www.trylon.c
/archives//html/Towertalk/2013-01/msg00346.html (13,642 bytes)

360. [TowerTalk] Caps (was: Hose Clamps) (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Sat, 2 Feb 2013 01:02:14 -0800
Today, I took down a A4S, original Cushcraft. The 2" x 18' boom was filled with water, probably nearly full. The antenna was way over the spec 37 lb weight. All elements and the boom had end caps. In
/archives//html/Towertalk/2013-02/msg00031.html (8,983 bytes)


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