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Total 76 documents matching your query.

21. [TowerTalk] Chromoly Mast slipping in a T2X rotor (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sat, 29 Dec 2018 23:10:34 +0000 (UTC)
A buddy of mine is using a T2X rotor with a 1 7/8" OD chromoly mast. He has about 13.5 sq ft of antenna surface area attached to the mast, which is well below the rating of 20 sq ft. The T2X is 10' b
/archives//html/Towertalk/2018-12/msg00282.html (9,507 bytes)

22. Re: [TowerTalk] Long Wire Sag (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sun, 10 Mar 2019 23:06:50 +0000 (UTC)
John and others, What has your experience (if any) been with Alumoweld (or other aluminum clad steel) wire, especially in a corrosive environment? We have plans to try one or more antennas for 80 met
/archives//html/Towertalk/2019-03/msg00136.html (8,448 bytes)

23. [TowerTalk] A friend needs some RG-302 75 ohm cable surplus pricing? (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Wed, 5 Jun 2019 19:16:15 +0000 (UTC)
A friend needs about 200 feet of RG-302. Is there a surplus place where I can find this, or maybe another source with good pricing? 73, Rich, N6KT His message to me: I am looking for some RG-302.  It
/archives//html/Towertalk/2019-06/msg00008.html (7,199 bytes)

24. Re: [TowerTalk] Have you had success with .... (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sun, 21 Jul 2019 01:35:08 +0000 (UTC)
I believe that the rope in the elements, specifically the element tips, is particular to the Hy-Gain yagis, at least the 20, 15, and 10 meter designs. I have seen a Hy-Gain yagi, a 5 element 15 meter
/archives//html/Towertalk/2019-07/msg00273.html (14,963 bytes)

25. [TowerTalk] Marking cables for identification (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Wed, 24 Jul 2019 22:36:29 +0000 (UTC)
I'm involved in building a fairly large station. There will be many coax, rotor, and control cables coming in to a main entrance of a building. It would be helpful if there was a good method of marki
/archives//html/Towertalk/2019-07/msg00332.html (9,592 bytes)

26. Re: [TowerTalk] Marking cables for identification (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Wed, 24 Jul 2019 23:57:01 +0000 (UTC)
Thanks for the responses so far. I probably should have said: 1) These markings/labels will be exposed to sun and rain outdoors. 2) Would you please share your favorite way to mark them? TNX and 73,
/archives//html/Towertalk/2019-07/msg00338.html (10,262 bytes)

27. Re: [TowerTalk] Tarnished connectors (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Tue, 20 Aug 2019 14:50:28 +0000 (UTC)
These are silver plated connectors? -Rich, N6KT On Tuesday, August 20, 2019, 07:39:56 AM PDT, Chuck Gooden <Chuck.Gooden@comcast.net> wrote: Just wondering if anyone has found a way to remove the tar
/archives//html/Towertalk/2019-08/msg00072.html (7,131 bytes)

28. Re: [TowerTalk] Grounding (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sat, 7 Sep 2019 15:39:02 +0000 (UTC)
Is there any value in the idea to put up some kind of structure, fairly far away from your antennas, and design it so that it has a better lightning path to ground than your towers and antennas?  Cou
/archives//html/Towertalk/2019-09/msg00205.html (11,388 bytes)

29. Re: [TowerTalk] Grounding (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sat, 7 Sep 2019 18:03:00 +0000 (UTC)
I visited the launch base at Kourou, French Guiana, a few years ago. They have 4 towers around the rocket at the launch site, for lightning protection. Overkill for a ham station, but maybe there is
/archives//html/Towertalk/2019-09/msg00209.html (13,945 bytes)

30. [TowerTalk] Source for 7/16" OD Aluminum Tubing (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Thu, 14 Nov 2019 21:46:13 +0000 (UTC)
I need some 7/16" OD aluminum tubing, and was wondering if there is a source that carries this OD tubing with a thicker wall than the .028" that Hy-Gain carries. 73, Rich, N6KT ______________________
/archives//html/Towertalk/2019-11/msg00136.html (7,577 bytes)

31. Re: [TowerTalk] Source for 7/16" OD Aluminum Tubing (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Thu, 14 Nov 2019 23:41:46 +0000 (UTC)
Jim, I took a look and didn't find 7/16" OD on either website. It seems that I'll have to look elsewhere. TNX, 73, Rich, N6KT On Thursday, November 14, 2019, 03:23:53 PM PST, Jim Brown <jim@audiosyst
/archives//html/Towertalk/2019-11/msg00139.html (9,628 bytes)

32. Re: [TowerTalk] Source for 7/16" OD Aluminum Tubing (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Fri, 15 Nov 2019 03:24:06 +0000 (UTC)
Hi Ray, We have a couple of those types of stores, but the prices are quite high.  About $5 per foot.  Looking for a much better price if possible. 73, Rich, N6KT On Thursday, November 14, 2019, 07:0
/archives//html/Towertalk/2019-11/msg00149.html (9,280 bytes)

33. Re: [TowerTalk] Source for 7/16" OD Aluminum Tubing (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Fri, 15 Nov 2019 14:53:27 +0000 (UTC)
John, Not a bad idea, doubling up with a 3/8" OD tube. I would probably have to secure them with a small bolt-and-nut combination or a rivet. When I settle on a (preliminary) solution, I'll post to t
/archives//html/Towertalk/2019-11/msg00154.html (11,140 bytes)

34. Re: [TowerTalk] Source for 7/16" OD Aluminum Tubing (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Fri, 15 Nov 2019 15:27:00 +0000 (UTC)
Hi Tim, That's good news. I may have to order some in December, so I'll have to keep looking for now. 73, Rich, N6KT On Friday, November 15, 2019, 07:08:55 AM PST, Tim Duffy <k3lr@k3lr.com> wrote: He
/archives//html/Towertalk/2019-11/msg00156.html (12,624 bytes)

35. Re: [TowerTalk] Force12 rebuild (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sat, 21 Dec 2019 22:26:59 +0000 (UTC)
Hi Jim, Sorry to sound dumb, but what is an hb coil? 73, Rich, N6KT On Saturday, December 21, 2019, 02:13:15 PM PST, Jim Thomson <jim.thom@telus.net> wrote: Date: Fri, 20 Dec 2019 14:01:20 -0600 From
/archives//html/Towertalk/2019-12/msg00118.html (9,178 bytes)

36. Re: [TowerTalk] Help identifying alloy in mast (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Mon, 10 Feb 2020 19:07:17 +0000 (UTC)
With the XRF gun, care must be taken not to be thrown off track. The XRF gun looks at the chemical composition of the surface of the metal. Plating has to be removed (which I think was already recogn
/archives//html/Towertalk/2020-02/msg00045.html (8,825 bytes)

37. [TowerTalk] Amphenol Connectors (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sun, 16 Feb 2020 00:13:33 +0000 (UTC)
I have two each of two Amphenol connectors. They are still in their original plastic bags. One type of connector has this part number on the bag:  554-74/397  and the other type has this P/N:  554-74
/archives//html/Towertalk/2020-02/msg00080.html (6,899 bytes)

38. Re: [TowerTalk] Dismantling an old 40m beam (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Fri, 6 Mar 2020 16:46:15 +0000 (UTC)
A few years ago, I was dis-assembling a bunch of old aluminum elements that were VERY stuck together. I tried the recommended soaking in solvents and heating up parts. I didn't have much good results
/archives//html/Towertalk/2020-03/msg00026.html (9,456 bytes)

39. Re: [TowerTalk] Noob question re: Thrust Bearings (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sun, 10 May 2020 14:18:48 +0000 (UTC)
Hi Grant, I am also interested in your concept of a UV resistant UHMW radial top bearing. I am part of a team that is building a station in the Caribbean, and am considering trying a non-metal bearin
/archives//html/Towertalk/2020-05/msg00047.html (9,574 bytes)

40. Re: [TowerTalk] Noob question re: Thrust Bearings (score: 1)
Author: Richard Smith <n6kt1@sbcglobal.net>
Date: Sun, 10 May 2020 16:26:08 +0000 (UTC)
Peter, Thanks for sharing the PI4CC photos and info. Lots of good engineering.  I am also interested to see Grant's design of a radial top bearing with 4" thick UHMW. 73, Rich, N6KT   PJ4K On Sunday,
/archives//html/Towertalk/2020-05/msg00050.html (10,979 bytes)


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