[GCARC] Simple 10m vertical wire antenna for upcoming club 10m net

[Tony Starr]

Chris,

First of all, welcome to the club. The simplest antenna is almost always a
dipole, and you can install a dipole vertically if you want to use it as a
vertical antenna.  You need an SO-239 jack, some wire, and a couple of
insulators for the ends.  Make the wires each about 8 feet 4 inches, long,
and solder one of them to the center pin on the SO-239 jack, and the other
one to the ground side of the SO-239.  Tie some lightweight dacron rope to
the ends, and attach a piece of RG-58 or RG-8x coax to the SO-239.  You
want to pull one end up, maybe into a tree, high enough to get the other
end at least 6 or 8 feet above the ground.  Higher is better.  Then you can
tie off the other end to a stake, fence post, or other stationary object.

The main thing with a dipole is that the coax should come off the antenna
as close to a right angle as possible to avoid getting common mode currents
flowing on the outside of the coax shield.  For this, you may have to pull
the coax away from your antenna and drape it over a roof overhang or rain
gutter, or possibly pull it up over the branch of another tree.  It does
not have to be exactly at 90 degrees, but you don't want it hanging down
next to the radiating wire either.  Just do the best you can. This will
make a good temporary vertical that you can use to get on the 10m net.
Later you can shop for a better antenna, or even build one if you like.
There are many possible choices.

Good luck and I am looking forward to hearing from you on 28.465!

Tony K3TS

On Mon, Nov 2, 2020 at 8:21 AM Christopher Wawak <chris at wawak.org> wrote:

> Hi - I’d love to participate in the club local 10m net. I’m having some
> trouble finding plans for a  “simple” 10m vertical that I can build using
> the high quality junque I have around the house.
>
> Is it as simple as hanging an 8ish foot wire down out of a tree then match
> it with a unun? Should I try something else? What’s worked for you?
> Remember this is temporary until I find a more reliable multiband vertical.
>
> Thanks!
> 73
> Chris
> --
> -- Chris
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