I see that YAHOO added spaces to the links in my last post. Remove the spaces
to make the links work.
73 - Jim W5ZIT
--- On Wed, 8/12/09, Jim Brown <w5...@yahoo.com> wrote:
From: Jim Brown <w5...@yahoo.com>
Subject: Re: [Repeater-Builder] Re: 2M Vertical Dipoles
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, August 12, 2009, 10:43 AM
There is a definite dielectric effect for slipping an antenna
inside a PVC pipe. Here are a couple of antennas that I build to insert inside
PVC and both have to be final tuned while inserted inside the support pipe.
http://sbarcnm. org/forum/index.php?topic=83.0
http://sbarcnm. org/forum/index.php?topic=58.0
I built one version of the first one listed to slip inside a fiberglass radome
from a defunct commercial antenna using RG-213 and one half inch copper tubing
for the sleeves. I had to use a shorted matching stub to get a decent SWR from
this setup.
73 - Jim W5ZIT
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