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Re: [TowerTalk] Swinging Gate Side Mount - Additional Turning Radius?

To: Jim W7RY <>
Subject: Re: [TowerTalk] Swinging Gate Side Mount - Additional Turning Radius?
Date: Mon, 30 Jan 2012 06:36:59 +0000 (UTC)
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The top plate I use just has an approx 2.125 hole, no bearing, no etc.  The 
mast extends about 3 inches above the top plate.The lateral movement is nil and 
any metal to metal wear from rotation or lateral movement is negligible.  I 
took this system down in summer 2011 to repaint.  The wear after these years 
was negligible, ok, it did remove the paint.  Remember our systems rotate at 
about 1 rpm.  My approx 16ft vertical mast is 2" od with about 0.18 wall.   
BTW, this system has gone through many 60-70mph winds in our summer monsoon 
winds of NM (also windy season is spring and fall).  I do not worry which 
direction the antennas are pointing/parked.  The 2 side arms are about 6ft 
apart.  Rotor, T2X, supports all weight. 


This is a proven "KISS" system, 20+ years. 


Oh, forgot to mention the tools needed to build this: tape measure, hack saw 
and my drill press. 


The antenna system, not a close up, is shown on QRZ dot com. One can get a 
really rough idea.  I do not have a web site to post any detail info/pictures.  
Have not checked steel prices but maybe $25 material cost depending upon one's 
scrounging abilities.  I am building another side mount this spring, more yagis 
to mount (can never have enough).  

Arne N7KA 
----- Original Message -----
Yup! That works too. How did you handle the "bearing" above the rotor?  Just 
a short piece of pipe larger than the mast? Most folks don't have a lower 
mast support for their Ham-4 or Tailtwister though.. :) 
Jim W7RY

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