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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Antenna\s+Mast\s+\-\s+guidelines\s+for\s+ratio\s+in\s+tower\s+\/\s+out\s+of\s+tower\s*$/: 5 ]

Total 5 documents matching your query.

1. [TowerTalk] Antenna Mast - guidelines for ratio in tower / out of tower (score: 1)
Author: "Scott Dickson, W5WZ" <W5WZ@arrl.net>
Date: Mon, 23 Mar 2009 06:10:00 -0500
I've seen discussion on the importance of selecting the correct material for a mast. I don't recall ever seeing a discussion on the ratio of mast in the tower versus above the tower. I have a 2" x 0.
/archives//html/Towertalk/2009-03/msg00639.html (7,644 bytes)

2. [TowerTalk] Antenna Mast - guidelines for ratio in tower / out of tower (score: 1)
Author: <john@kk9a.com>
Date: Mon, 23 Mar 2009 14:01:47 -0800
I do not have a mechanical engineering background, however since no one else has answered your post I will give it a try. I believe that 1/3 in the tower and 2/3 above the tower works fine for most m
/archives//html/Towertalk/2009-03/msg00649.html (8,601 bytes)

3. Re: [TowerTalk] Antenna Mast - guidelines for ratio in tower / out of tower (score: 1)
Author: chas <chasm@texas.net>
Date: Mon, 23 Mar 2009 16:30:48 -0500
I of course know nothing about this as I am not a Civil PE or a Structural Steel geek... but your concern is not simple.. 1. is overturning moment.. 2. #1 is dependent upon the load on the exposed ma
/archives//html/Towertalk/2009-03/msg00652.html (9,039 bytes)

4. Re: [TowerTalk] Antenna Mast - guidelines for ratio in tower / out of tower (score: 1)
Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>
Date: Mon, 23 Mar 2009 21:17:38 -0400
It depends on what the mast has to do as far as material. I only use DOM where I consider it necessary, otherwise I use structural steel tubing. My whole array is on structural steel tubing. The thru
/archives//html/Towertalk/2009-03/msg00658.html (13,290 bytes)

5. Re: [TowerTalk] Antenna Mast - guidelines for ratio in tower / out of tower (score: 1)
Author: "Ray Benny" <rbenny@sbcglobal.net>
Date: Mon, 23 Mar 2009 18:55:28 -0700
Scott, I have no background or technical knowledge on this subject; however, I have the same mast that you have. It is mounted in a heavy duty 71 ft motorized tower with about 7 ft inside the tower (
/archives//html/Towertalk/2009-03/msg00660.html (10,466 bytes)


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