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21. Re: [TowerTalk] mast material (score: 1): Author: RICHARD SOLOMON <w1ksz@q.com>; Date: Wed, 6 Aug 2008 16:23:50 +0000; Given that the Stress Factor ..."S"... is a major component of the equation, how does one determine the "S" factor, considering that the material in question could have been made in Pittsburgh, China; /archives//html/Towertalk/2008-08/msg00152.html (10,696 bytes)
22. Re: [TowerTalk] mast material (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Wed, 06 Aug 2008 16:26:57 -0400; The top fence rails/pipe vary widely in strength but all I've seen had much more spring/give than structural steel tube. IOW they would spring much farther than the steel without taking on a permanen; /archives//html/Towertalk/2008-08/msg00155.html (10,171 bytes)
23. Re: [TowerTalk] mast material (score: 1): Author: N1BAA - Jose Castillo <n1baa@comcast.net>; Date: Thu, 07 Aug 2008 06:42:44 -0400; This is troublesome. Anyone, who uses a fence rail on their tower is in trouble.... This is NOT a safe practice....no matter what you put on top... I know people who put up 100 foot towers with NO co; /archives//html/Towertalk/2008-08/msg00162.html (8,667 bytes)
24. [TowerTalk] Mast material (score: 1): Author: "k2vi" <k2vi@cox.net>; Date: Wed, 25 Feb 2009 19:38:44 -0500; Hey guys, can someone please advise me on the mast to use, I was looking at 2" EMT pipe I saw in the electrical dept at home depot. Keep in mind this pipe will be supporting a hy-gain 203BA which has; /archives//html/Towertalk/2009-02/msg00585.html (6,660 bytes)
25. [TowerTalk] Mast material (score: 1): Author: <n6bu@att.net>; Date: Wed, 25 Feb 2009 17:02:46 -0800; Tony, Suggest you stick with the galvanized pipe. The EMT will rust very quickly in salt air and you will never get it back out of the thrust bearing collar. Doug - N6BU _____________________________; /archives//html/Towertalk/2009-02/msg00586.html (6,879 bytes)
26. Re: [TowerTalk] Mast material (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Wed, 25 Feb 2009 20:25:12 -0500; The antenna is not much for the strength of 2" EMT BUT doing it with a 6' arm is. EMT is rolled and welded. It's not all that strong. It's also cad plated which will rust in a hurry. Schedule 40 galv; /archives//html/Towertalk/2009-02/msg00587.html (8,960 bytes)
27. Re: [TowerTalk] Mast material (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Wed, 25 Feb 2009 17:37:44 -0800 (PST); The fundamental problem here is that nearly all amateur antenna hardware is designed around 2.000 inch masts. So called "2 inch" water pipe has an outside diameter of 2 3/8 inch. I suspect what you a; /archives//html/Towertalk/2009-02/msg00588.html (8,749 bytes)
28. Re: [TowerTalk] Mast material (score: 1): Author: jimlux <jimlux@earthlink.net>; Date: Wed, 25 Feb 2009 20:53:18 -0800; EMT is pretty thin wall, and structurally not all that hot. After all, it's really only designed to protect wires from abrasion. For instance, you can't use it to support an electrical box holding a; /archives//html/Towertalk/2009-02/msg00589.html (7,797 bytes)
29. Re: [TowerTalk] Mast material (score: 1): Author: w8zn@comcast.net; Date: Thu, 26 Feb 2009 13:16:36 +0000 (UTC); Don't overlook 6061T6 aluminum - 2" OD with .25 or .375 wall thickness. Lightweight (relatively), no, you can't put a monoband 40m beam 10 feet above a thrust bearing but within the specs, it works v; /archives//html/Towertalk/2009-02/msg00592.html (9,525 bytes)
30. Re: [TowerTalk] Mast material (score: 1): Author: David McKenzie <kb1fsy@vhfwiki.com>; Date: Thu, 26 Feb 2009 09:32:31 -0500; A friend of mine uses the fence rail from home depot, he says it's thicker wall than EMT and feels lighter. It comes in 10' sections and the ends are tapered so that they fit together better than you; /archives//html/Towertalk/2009-02/msg00595.html (10,770 bytes)
31. Re: [TowerTalk] Mast material (score: 1): Author: David McKenzie <kb1fsy@vhfwiki.com>; Date: Thu, 26 Feb 2009 12:40:41 -0500; But as an alternative to EMT, it should work out fine. Presumably if you are using EMT you aren't putting up 40 meter monobanders and H frames of 2 meter beams. For a couple of VHF/UHF beams you can; /archives//html/Towertalk/2009-02/msg00602.html (13,396 bytes)
32. Re: [TowerTalk] Mast material (score: 1): Author: "Julio Peralta" <jperalta4@verizon.net>; Date: Thu, 26 Feb 2009 10:28:16 -0500; I can tell you a horror story about using fence rail for mast material. Of course if your only going to put one antenna just above the top of the tower almost anything will work, however if you're go; /archives//html/Towertalk/2009-02/msg00605.html (12,187 bytes)
33. Re: [TowerTalk] Mast material (score: 1): Author: "W3YY" <w3yy@cox.net>; Date: Thu, 26 Feb 2009 14:03:29 -0800; I too have used this mast material for over thirty years. For moderate sized installations it is wonderful. Lightweight, doesn't rust, easy to drill, relatively low cost, and seems to handle the wind; /archives//html/Towertalk/2009-02/msg00611.html (11,277 bytes)
34. Re: [TowerTalk] Mast material (score: 1): Author: "Allan Greening" <vk3pa@vk3pa.com>; Date: Fri, 27 Feb 2009 09:19:19 +1100 (EST); some times thinner wall tube may be better.. my towers are designed so the top tube will bend with high winds (over 80 mph with a given load) thus saving the tower es antennas.. All "Nally towers" we; /archives//html/Towertalk/2009-02/msg00612.html (8,472 bytes)
35. Re: [TowerTalk] Mast material (score: 1): Author: Richards <jruing@ameritech.net>; Date: Thu, 26 Feb 2009 17:25:06 -0500; Right, Rick. Many antenna manufacturers fail to adequately distinguish between inside and outside diameter. DX-Engineering sells a 43 foot monopole made of aluminum TUBING and it starts with a 2" OUT; /archives//html/Towertalk/2009-02/msg00613.html (9,688 bytes)
36. Re: [TowerTalk] Mast material (score: 1): Author: Mark Spencer <mspencer12345@yahoo.ca>; Date: Thu, 26 Feb 2009 15:38:52 -0800 (PST); One advantage (for me at least) of using this material is that the physical properties are better defined than a typical steel mast. At least where I live Aluminum seems to be easier to obtain tha; /archives//html/Towertalk/2009-02/msg00614.html (12,543 bytes)
37. Re: [TowerTalk] Mast material (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Thu, 26 Feb 2009 15:43:19 -0800 (PST); PIPE IN NOT MEASURED BY INSIDE DIAMETER. All so-called "2 inch iron pipe size" pipe has an OUTSIDE diameter of 2.375 (2 3/8) inch. The inside diameter varies depending on the schedule. For schedule 4; /archives//html/Towertalk/2009-02/msg00615.html (9,729 bytes)
38. Re: [TowerTalk] Mast material (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Thu, 26 Feb 2009 16:09:00 -0800 (PST); Just wanted to mention that if you do want to use "1 1/2 inch" water pipe as a mast, you can make a perfect shim for it from a piece of standard 2" (0.050 inch wall) irrigation tubing. This tubing is; /archives//html/Towertalk/2009-02/msg00617.html (9,340 bytes)
39. Re: [TowerTalk] Mast material (score: 1): Author: Richards <jruing@ameritech.net>; Date: Thu, 26 Feb 2009 22:04:57 -0500; Funny that is not what DX engineering said -- or what company that sold me the pipe! Anyway, the point remains you gotta pay attention to what it is you are using because not all metal hollowware is; /archives//html/Towertalk/2009-02/msg00623.html (9,249 bytes)
40. [TowerTalk] mast material (score: 1): Author: "k2vi" <k2vi@cox.net>; Date: Sat, 28 Feb 2009 15:25:00 -0500; The ignoramous calling people dumb ass as well as using an anomyous to not be indentified, You exhibit the intelligence of a mole with no class.Obviously your parents treated you poorly and now your; /archives//html/Towertalk/2009-02/msg00678.html (8,628 bytes)

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