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[TowerTalk] Conduit runs in tower base

Subject: [TowerTalk] Conduit runs in tower base
From: Bill Ogden <>
Date: Mon, 1 Nov 2004 09:54:08 -0500
List-post: <>

I did something similar (1.5 inch sweep in the concrete base) of a former
tower.  Big mistake.  Use at least a 3" conduit.  Schedule 40 seems to be

I have a coax switch control cable, a rotator cable, two coax cables
(buryflex), and one SteppIR control line.  They are very small in a 3"
conduit, but pulling another cable is already a nontrivial job.  Remember
to use a very good "messenger" or "tag" or "pull" rope.  I used a 1/4"
dacron line that should stand up to moisture.  There always seems to be
condensation in the conduit.

I used two 90 degree schedule 40 turns at the antenna end and I remove
these when pulling a line.  They just sit on top of the vertical 3" conduit
that emerges from the ground.  (On my current tower, I did not embed the
conduit in the tower base.)



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