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[TowerTalk] Lightning and static Discharge Issues

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Subject: [TowerTalk] Lightning and static Discharge Issues
From: Saad.Mahaini@MCI.com (Saad Mahaini)
Date: Tue, 04 Aug 1998 10:37 -0500 (CDT)
Hello,

I have a 70 ft crank up with 15 ft mast, in a heavily treed lot.  I
have a TH11 and a 40m dipole on top. I like to put up an 2M antenna
on top, to hit the DX packet cluster.  It has to be an omni directional
(ie vertical), so it's not affected by turning the HF antennas.

The question is how much risk is there putting up a short 2M 4ft
vertical on top, as far as lightning is concerned.  I guess it's not
just the height issue, but the tip of the vertical is much pointier
than just the mast.

Other issue, is static discharge.  Even if the lightning is not an
issue, how about possible noise getting into the HF antennas resulting
from the vertical's static discharge just above them.

I guess the static discharge noise could be an issue by itself, and
I also like feedback on it when using a tall HF vertical.  I plan to
put up a Hytower (53 ft) vertical in the next week or so, and I wonder
if there will be an issue with static discharge noise.

Would it help to install a brass or copper toilet float ball or similar
on top.  If so, does anyone have a source for these.    

Questions, questions,...

Tnx es 73s, Saad KB6VIR/5 Dallas     

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