[TowerTalk] Gem Quad Back in Production

[WA3GIN]

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 at gmail.com>
To: "Towertalk Reflector" <towertalk at 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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