Ward,
Your note reminded me how I feed my GEM QUAD. I used parallel runs of
RG213 with a home brew open frame relay coax switcher. Very quiet feedline
for a city lot...had a hombebrew tuner on the other end. I was a fun set-up.
73,
dave
wa3gin
----- Original Message -----
From: "Ward Silver" <hwardsil@gmail.com>
To: "Towertalk Reflector" <towertalk@contesting.com>
Sent: Sunday, July 26, 2009 3:16 PM
Subject: Re: [TowerTalk] Gem Quad Back in Production
>I had a two-element Gem for nearly ten years and it worked very well in a
>good location. Quads seem to do slightly better than Yagis at very low
>angles - very important for low-power/QRP guys like me :-)
>
> Anyway - the way I chose to feed the elements was with quarter-wave
> sections of RG-62/U (92 ohms) to an RCS-8V, 5-position remote coax switch.
> At the feedpoint, to keep the solid wire (both the elements and the coax
> center conductor) from breaking, I used a small piece of glass-epoxy
> perfboard with brass screw terminals and tie-wrapped the coax to it. All
> of the coax feed lines were bundled together. The bundle was then tied
> off to the central spider with nylon cord. That kept the whole assembly
> relatively stable and I had no more coax or element breakage. SWR was
> less than 1.5:1 on all five bands.
>
> Bondo and a spare piece of fiberglass rod work well as an element repair
> technique. Don't ask me how I know this :-)
>
> 73, Ward N0AX
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