I am not sure what his reasons are for changing antennas, however I have
modeled a 43' vertical and found it be a horrible performer on some bands,
especially 10m. Also it seems like it would be a pain to have to use a
tuner and if the tuner is not at the antenna base you also have added coax
losses.
John KK9A
To: TowerTalk@contesting.com
Subject: Re: [TowerTalk] Hustler 6-BTV installation
From: Matthew King <mrk.twg@gmail.com>
Date: Fri, 4 Apr 2014 20:22:02 -0400
Hi, Phil - I found on my installation of a 6-BTV that trap tuning was
necessary to get the best tuning over my 45 radial field.
I used a bulkhead for some time until I installed a DX Engineering choke in
an effort to knock out some RF in the shack. I've come to the conclusion
that I'm just at the edge of the near field since the choke made little
difference on 10m. Point being, I guess it's really up to you and your
particular installation as to install the beads or not. It cannot hurt
from my somewhat limited understanding, and may very well help.
Might I ask why you've decided to switch to a shorter, trapped vertical
rather than the 43' vertical? Also, did you have a tuner at the base of
the 43' antenna?
Take care,
Matt King
KK4CPS
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