[VHFcontesting] Waterproofing a gamma match

[Zack Widup]

Gamma matches produce a slight skewing of the pattern of a beam. I've always
used T-matches or some other balanced (symmetric) type of feed for the
VHF-UHF antennas I've built.
I've used Krylon and silicone sealant to waterproof them.

73, Zack W9SZ


On Sun, May 17, 2009 at 11:21 PM, <kb7dqh at donobi.net> wrote:

> Replacing with a "T" match...
>
> Eric
> KB7DQH
>
>
>
> > The Gamma match for my Cushcraft A50-3S finally dried out so it is now
> > resonanting on 6m again (it was detuned by the rain we had).  I am now
> > thinking of waterproofing the match so this doesn't happen again.  What
> is
> > the best way to do this?  I am thinking of covering the gap in the open
> > end of the tube with electrical tape and coax seal, but will this detune
> > the match again?  I am thinking it wouldn't since it should be
> > non-conductive.  Has anyone else on the list waterproofed a Gamma match?
> > If so, what works best?
> >
> > 73s John AA5JG
> >
> >
> >
> >
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