Hi Art,
I've got a BBQ Grill too, but used a 3 1/4 turn helix for a feed. I was able
to work AO-40 at apogee with it. Definitely a nice system.
How big is your dish? I've not seen a Grill antenna much bigger than the one I
currently have, and I'm told it's not big enough for 1.2 ghz (only 30").
Supposed to need at least 4'. So instead I built a helix for that band and did
some L/S and L/U through AO-51. Then I found a commercial long boom 1.2 ghz
yagi at another Ham Swap (gotta keep me away from those!), and replaced the
Helix. But, you know, I don't think the new antenna improved things.
Mechanically, yes, but not RF. The Beacon off to the West is about the same on
either one.
Given the lack of S-band on the current birds, I was thinking about taking down
the Grill for a while, just to lighten the load on the rotor motors. Maybe put
up a Wi-Fi flat panel, just to keep the band open. But if I can get both 1.2
and 2.4 out of the Grill instead, might that be better?
Greg KO6TH
> From: kc6...@cox.net
> To: ko6th_g...@hotmail.com; amsat-bb@amsat.org
> Subject: RE: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
> Date: Mon, 11 Jul 2011 21:26:17 -0700
>
> Greg,
> Do not overlook the 2.4 GHz grid dishes. I have successfully added a quad
> loop for 23 cm (1.2GHz) and have been pleasantly surprised with the
> performance. I have used one for transmit on 2.4 and receive on 1.2 for ATV
> work. A single dish with two microwave bands.
>
> Art,
> KC6UQH
>
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