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Re: [TowerTalk] Downside Up G-7

Subject: Re: [TowerTalk] Downside Up G-7
From: K8RI on TT <>
Date: Sun, 27 Mar 2011 14:06:01 -0400
List-post: <">>
On 3/27/2011 11:35 AM, Mike wrote:
> Dale, yes, fear of lightning. My firm belief, and no amount of science (or 
> voodoo
> theory) will shake it, is that verticals and lightning are natural partners.
> Lightning and high-mounted verticals have an absolute lust for each 
> other..... ;-)

Wish I had photos of the Diamond (or Comet) 144/440 vertical I used for 
the repeater some years back. The top of the fiberglass tube looked like 
an exploded cigar and the brass rod used for the top element looked like 
a half used brazing rod. <:-)) Needless to say the matching network in 
the base no longer worked.

Unfortunately it also blew out the 7/8" Heliax about 20 feet down from 
the antenna making it too short to use for much of anything.

That was on the old 90' tower. I think it was the only time that tower 
was hit. The 45 G was hit on average of 3 times a year for the first 5 
years and twice the next year.  These are just the times the strikes 
were visually verified. I have no idea as to how many times it was 
really hit.  Near as I can tell, It hasn't been hit since.

When the new mast and antennas go back up the club would like me to put 
one of my Diamond 144/440 antennas up top for digital. That would put 
the top of it at roughly 140'. I wonder how long it'd last?  I'm really 
not willing to sacrifice the antenna AND the 228 feet of LMR-600 to get 
to it.


Roger (K8RI)



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