The concrete base is not a good insulator. You could drain any static
charges by using a hairpin coil match or a large inductor.
John KK9A
To: towertalk@contesting.com
Subject: [TowerTalk] 80m vertical
From: K9IL
Date: Sat, 16 Dec 2006 12:48:57 EST
List-post: <mailto:towertalk@contesting.com>
I'm considering replacing my 1/2 square with a 1/4 wave vertical. The wires
keeping breaking in the storms. What I would like to know is if anyone is
using Rohn 20/25 as an 80m vertical. I'm sure the physical size is shorter
because of the large diameter. If you use a concrete base, that should make
it
virtually insulated from ground. Another consideration is lightning
protection.
You can disconnect the feed when not in use but would a gap type arrestor
be
sufficient to drain static charges?say a 1/4'' one. Anyone out there using
something similar?
k9il
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