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[TowerTalk] Mast -- Drill or not?

Subject: [TowerTalk] Mast -- Drill or not?
Date: Fri, 25 Aug 2006 11:21:57 -0500
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I am just about to start installing my 9 foot roof tower with an 1/4 inch wall 
alumunin mast (9 foot) with a 3 element 
SteppIR mounted about 4 1/2 to 5 feet above the tower.

Is the center bolt on the Ham-IV rotator sufficient to keep the mast from 
turning or should the mast be drilled so that 
the bolt (or an pointy end bolt) has a more positive hold on the mast?  Winds 
of 50-60 mph are occassional in the 

Thanks to this reflector for pointing me to the Penninger website for the mast. 
 I had the mast in less than a week.

My only remaining problem is finding true north...My house is approximately 30 
degrees off of magnetic north.

    -- Bruce

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