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21. Re: [TowerTalk] Tower Base (score: 1): Author: "crawfish" <crawfish@surfmore.net>; Date: Fri, 28 Jul 2006 11:49:25 -0500; I didn't read all the post like I should have. I have had 40 feet of Rohn 20 up with minimal guying years ago, but would not use it at all now.Lucked up and found a nice 48 foot Rohn 45 foldover. As; /archives//html/Towertalk/2006-07/msg00835.html (7,060 bytes)
22. [TowerTalk] Tower Base (score: 1): Author: "Jim Martin" <w6zf@comcast.net>; Date: Fri, 28 Jul 2006 23:18:12 -0400; Thanks for the responses, much appreciated! I definitely won?t be using the Rohn 20 section as a part of this tower. The responses concerning it were pretty much expected anyway. A local friend has o; /archives//html/Towertalk/2006-07/msg00843.html (7,586 bytes)
23. Re: [TowerTalk] Tower Base (score: 1): Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>; Date: Sat, 29 Jul 2006 00:27:57 -0400; I definitely won't be using the Rohn 20 section as a part of this tower. The responses concerning it were pretty much expected anyway. A local friend has offered a section of Rohn 25.two of the secti; /archives//html/Towertalk/2006-07/msg00845.html (8,157 bytes)
24. [TowerTalk] Tower base (score: 1): Author: "Merlin-7 KI4ILB" <merlin-7@sc.rr.com>; Date: Mon, 28 Aug 2006 22:54:34 +0100; It looks like I will be buying a rhon 45 tower from TEXAS TOWERS (great guy that Tim Sharp) My question is, how long after I pour the concreate for the base should I wait to install the tower? Thanks; /archives//html/Towertalk/2006-08/msg01015.html (6,333 bytes)
25. Re: [TowerTalk] Tower base (score: 1): Author: "Mike, K6BR" <noddy1211@sbcglobal.net>; Date: Mon, 28 Aug 2006 16:05:54 -0700; I was told to wait 4 weeks, seemed to be a bit OT, but I did it anyway and glad I did, it is still good 15 years later. By the way you have to wet it down regularly, that I was told is really importa; /archives//html/Towertalk/2006-08/msg01016.html (7,846 bytes)
26. Re: [TowerTalk] Tower base (score: 1): Author: "Merlin-7 KI4ILB" <merlin-7@sc.rr.com>; Date: Mon, 28 Aug 2006 23:24:33 +0100; Hmmm 4 weeks, I may have to order the short base section first and pour that pronto. That way I will not go into withdrawal or something. I guess there is also the slingshot with the dipole in the tr; /archives//html/Towertalk/2006-08/msg01017.html (8,756 bytes)
27. Re: [TowerTalk] Tower base (score: 1): Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>; Date: Mon, 28 Aug 2006 19:58:51 -0400; They didn't tell me anything other than a couple of days. I had the base section plus one 10 footer on top of it setting in place and guyed to hold it vertical. The bottoms of the legs were in the c; /archives//html/Towertalk/2006-08/msg01023.html (9,841 bytes)
28. Re: [TowerTalk] Tower base (score: 1): Author: "Donald Chester" <k4kyv@hotmail.com>; Date: Tue, 29 Aug 2006 06:01:44 +0000; Absolutely the WORST possible way to build a guyed tower is to set the bottom section in concrete. It is far better to use a base plate with a pier pin in the concrete, to allow the tower base some f; /archives//html/Towertalk/2006-08/msg01048.html (7,807 bytes)
29. Re: [TowerTalk] Tower base (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Tue, 29 Aug 2006 14:03:42 -0500; Te each his own. I have never put up a guyed tower using a base plate and do not have any future plans for one. I always use the concreted short tower section as recommended in the Rohn catalog. I ha; /archives//html/Towertalk/2006-08/msg01061.html (9,002 bytes)
30. Re: [TowerTalk] Tower base (score: 1): Author: "Chet Moore" <chetmoore@cox.net>; Date: Tue, 29 Aug 2006 16:07:39 -0400; I'm with you Kieth, Don's statement certainly doesn't apply to all towers. Rohn 25 and 45 and AB-105 are some others it doesn't apply to. 73 _______________________________________________ __________; /archives//html/Towertalk/2006-08/msg01069.html (10,874 bytes)
31. Re: [TowerTalk] Tower base (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Tue, 29 Aug 2006 16:25:42 -0400; K7NV did a computational study some years ago to compare pier pin versus fixed base construction, and found some circumstances, IIRC, where the fixed base would cause failure in the first section at; /archives//html/Towertalk/2006-08/msg01070.html (12,415 bytes)
32. Re: [TowerTalk] Tower base (score: 1): Author: "Dubovsky, George" <George.Dubovsky@andrew.com>; Date: Tue, 29 Aug 2006 16:37:59 -0400; Dunno, but this seems like something you ought to know. I think 1 degree vertical error would put the top of your 97' tower about 1.7' out of plumb. 73, geo - n4ua -- This message is for the designa; /archives//html/Towertalk/2006-08/msg01071.html (8,989 bytes)
33. Re: [TowerTalk] Tower base (score: 1): Author: Cqtestk4xs@aol.com; Date: Tue, 29 Aug 2006 16:43:56 EDT; K7NV did a computational study some years ago to compare pier pin versus fixed base construction, and found some circumstances, IIRC, where the fixed base would cause failure in the first section at; /archives//html/Towertalk/2006-08/msg01072.html (9,007 bytes)
34. Re: [TowerTalk] Tower base (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Tue, 29 Aug 2006 16:51:35 -0400; I wouldn't be surprised. But the deviation from a pure column is probably unimportant below 90 mph or so, because the tower is quite underloaded and the first 50 feet of it is shielded from prevailin; /archives//html/Towertalk/2006-08/msg01073.html (9,283 bytes)
35. Re: [TowerTalk] Tower base (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Tue, 29 Aug 2006 16:00:12 -0500; I would bet he is not that far off. It is fairly easy to get a tower plumb using a simple level. I went an extra step and also used a plumb bob to set the first 50 feet. After that you can sight from; /archives//html/Towertalk/2006-08/msg01074.html (9,933 bytes)
36. Re: [TowerTalk] Tower base (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Tue, 29 Aug 2006 17:01:19 -0400; Good point, Bill. However, my first guy set is at 31 feet - if my tower was Rohn 45, or even 55, and the base weren't set among 50-foot trees, I'd be tempted just to leave the first set in place, sli; /archives//html/Towertalk/2006-08/msg01075.html (10,234 bytes)
37. Re: [TowerTalk] Tower base (score: 1): Author: "Merlin-7 KI4ILB" <merlin-7@sc.rr.com>; Date: Tue, 29 Aug 2006 22:54:14 +0100; When I put up my rhon 25, I used a plumb bob. After the tower was up I installed guy wires (not really needed) as I tighted up the guys I used the plumb bob to make sure it was straight. I ran the st; /archives//html/Towertalk/2006-08/msg01076.html (9,056 bytes)
38. Re: [TowerTalk] Tower base (score: 1): Author: K7LXC@aol.com; Date: Fri, 1 Sep 2006 09:42:37 EDT; vertical error would put the top of your 97' tower about 1.7' out of plumb. The TIA-222 Tower Standard allows you to be 3" per hundred feet out of plumb so there is some fudge factor in there already; /archives//html/Towertalk/2006-09/msg00004.html (6,769 bytes)
39. [TowerTalk] TOWER BASE (score: 1): Author: "Robert Rickards" <robertrickards@verizon.net>; Date: Wed, 10 Mar 2010 15:45:28 -0500; I have a 90 steel self supporting tower that I inherited. The legs at the base are 56" point to point each leg of the triangle. This was a commercial tower when two way radio was big. Tubular steel.; /archives//html/Towertalk/2010-03/msg00078.html (7,196 bytes)
40. Re: [TowerTalk] TOWER BASE (score: 1): Author: "Eugene Jensen" <eugenejensen@nyc.rr.com>; Date: Sun, 24 Jul 2011 23:09:27 -0400; 3 factors's come to mind. 1: what the wind speed area your area in and what is the load you are planning for the top. Any ideal who built it and if you have a few pictures maybe I would recognize it.; /archives//html/Towertalk/2011-07/msg00341.html (7,876 bytes)

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