Another option is to purchase an aluminum mast. You should be able to find
a local supplier and the mast would not require any corrosion protection
like purchasing steel tubing would. It is available in a large variety of
sizes to fit your antenna and rotator requirements. At P40A I use 2 1/2
diameter x 1/2 wall aluminum masts for all of my monobanders.
John KK9A
To: "Tower Talk List" <towertalk@contesting.com>
Subject: [TowerTalk] Rigid Steel Conduit as Mast?
From: "Jim Brown"
Date: Fri, 05 Jun 2009 15:01:53 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I asked a colleague who builds a lot of commercial two-way
installations where I could find 2-inch hot-dipped galvanized mast
material locally. He suggested that I use 1.5-inch rigid steel
conduit. I'll be using a 10 ft length with a 3-element SteppIR (no
30/40M element), with roughly 3 ft inside the top section of the
tower. The tower is in a relatively protected location, so not a lot
of wind speed.
I would question whether this is sufficiently robust for a bigger
antenna, but this is not a lot of load. Any thoughts on this?
73,
Jim K9YC
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