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[Towertalk] Grounding mast to tower

To: <towertalk@contesting.com>
Subject: [Towertalk] Grounding mast to tower
From: RedHaines@centurytel.net (Red)
Date: Tue, 2 Apr 2002 12:33:43 -0600
Hi;

A modestly high impedance between the mast and the tower will send more of
the current down the feedline, thus increasing the voltage at the lightning
arrestor, suppressor, or attenuator (of course, you have one of  those!).

It is desireable to bypass the current through as many paths as possible.
Each additional path reduces the overall impedance and reduces the voltage
on the feedline.  Model every path with a complex impedance and calculate
the effect of changing impedance.  Read Polyphaser's book on the subject.

I recommend connecting a flexible lead from the mast to each tower leg.  Pay
attention to corrosion prevention in the connections, in accordance with the
materials used.  Inspect such connections at least annually.

73 de WO0W


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