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[TowerTalk] Mast specs

To: <towertalk@contesting.com>
Subject: [TowerTalk] Mast specs
From: 9A3A@spidernet.com.cy (Ivo Pezer, 5B4ADA/9A3A)
Date: Tue, 07 Oct 1997 13:55:29 -0700
The strongest type of mast available in Cyprus is galvanized
stell pipe with following specs:

O.D. 48mm, wall 3.2mm, Class B British standard specs
1387/67 (6m length)
My antennas will be Force 12 duobanders 2-40/4-20 just above
the tower (8.4 sq ft wind load) and 4-15/4-10 (5.74 sq ft
wind load) 8 ft above.

1. need PSI Yield for this type of pipe;

2. bearings are 49mm, so I'll have 0.5mm clearance around
the pipe.
    Are these bearings good for this installation, or
should I wait for  48mm
     bearings (if they can be found).

Ivo Pezer, 5B4ADA/9A3A
<9A3A@spidernet.com.cy>


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