Who needs aluminum?

Alpha S9 Antenna 31

I bought mine because: 1. It does everything that an aluminum mono will do in rx/tx; 2. It’s green so I don’t have to paint it to blend in with my trees. When a nasty front threatens to come through, I just lift it off and lay it across a low branch; 4.I don’t have to fuss with shooting lines over trees; 5. It’s easy up and easy down, and 6. I can place it on my lot without a branch telling me what to do 🙂

My unit is used as a mono on 40 mounted on telescoping poles with four radials. The feed point is at 20 ft. I tried 6, 8, and 10 radials and it made no difference, so I took them down. I’ve been able to work everything that another ham down the street works. He has a multiband vertical, ground mounted, aluminum, with 60 radials. When he receives S9+10, I get S9+8 or S9+9. So what?
The antenna is at the edge of a tree line.
I also experimented with feeding the antenna with 450 ohm OWL and could tune everything from 160 up to 10 through my homebrew differential tuner. There was just too much feedline radiation, even with a 1:1 DXE current balun at the shack, to warrant keeping it up.

With coax feed you want to have a 1:1 choke balun at the feed point. Eighteen to 21 turns on 4″ PVC is just as effective as $50 to $120 commercial unit.

Tape a hook on it at X-mas time and use it to mount lights at the top of your trees with precision:)

KW4N

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