Ted,

Thanks for the feedback, and the picture. I see they have a 50 watt version for a few bucks more.

73s,

Alan WA4SCA

<-----Original Message----- <From: Ted [mailto:[email protected]] <Sent: Sunday, December 22, 2013 3:16 PM <To: [email protected]; 'AMSAT-BB' <Cc: 'CC' <Subject: RE: [amsat-bb] ANTENNAS.US QFH Satellite Antennas? < <Alan, I have owned the 440 one for several years. Very well <made. A sealed <unit. Can't tx through them but as I recall, they make a <version that will <handle 5-10w of tx. I never noticed any better performance <than my Elk on a <rotor. They would be very conducive to mounting on a <car/truck roof if you <are into that (or looking for a quick divorce!) I have the 440 <one up as a <rx only for a separate radio. < <73, Ted <K7TRK < <-----Original Message----- <From: [email protected] [mailto:[email protected]] On <Behalf Of Alan <Sent: Sunday, December 22, 2013 11:51 AM <To: AMSAT-BB <Cc: CC <Subject: [amsat-bb] ANTENNAS.US QFH Satellite Antennas? < <Hi, < <I was looking for something on QFHs, and found an interesting set of <antennas. < <http://preview.tinyurl.com/ougah8b < <They donated an antenna to the AMSAT Symposium 2-3 years ago, <but I have <never heard one in use that I know of. Anybody use them, or <know someone <who has? < <73s, < <Alan <WA4SCA < < <----------------------------------- < <Keep Calm and Carry On < <_______________________________________________ <Sent via [email protected]. Opinions expressed are those of <the author. <Not an AMSAT-NA member? Join now to support the amateur <satellite program! <Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb < < <

Clayton,

Yesterday I had 25 years of antennas destroyed, including the tower, and am toying with seeing what can be done with omnis rather than rebuilding what was essentially a P3 station. Fortunately the preamps survived. An array of multiple antennas with selectable polarization would be interesting. It almost always made a difference with beams, sometimes a dramatic one. Lots of time between now and Dayton to ponder. :)

73s,

Alan WA4SCA

<-----Original Message----- <From: Clayton Coleman [mailto:[email protected]] <Sent: Sunday, December 22, 2013 4:11 PM <To: Alan Biddle; AMSAT-BB <Subject: Re: [amsat-bb] ANTENNAS.US QFH Satellite Antennas? < <At the time we had SO-67, AO-27, AO-51, and SO-50 available, I owned <one of those antennas. I probably made somewhere in the vicinity of <250 contacts with it from my car. < <For reception of all those birds, I would rate them as follows: <AO-51 - Worked modestly without preamp, excellent with preamp, <even in motion <SO-67 - Almost as good as AO-51, even in motion <AO-27 - Didn't work very well unless I was completely stationary, even <with preamp <SO-50 - Barely usable unless I was completely stationary and it was <the *right* pass < <I wasn't active on the linear birds at the time but I suspect it would <work a lot better for FO-29 than any of the FM's. I sold it before I <added full duplex SSB to my mobile station. < <If you are looking for something mobile/portable, there are much more <cost effective solutions with similar or better performance. I have <experimented with a number of antenna combinations over the past three <years. < <If you're dead set on a fixed omni, it is hard to beat a 19" whip <combined with a receive preamplifier. There are pro's/con's to it. <Personally, I almost always use a vertical for mode J uplink mobile <and a 3-element yagi w/preamp for downlink. For mode B, I transmit <into a dual-band vertical on the trunk lid and listen on a 2m Arrow or <simply use the whole Arrow out of the window. (it can be done, albeit <peculiarly) < <Please tell us the application for which you are looking into using <the antenna...Mobile in motion? Fixed portable ops from car? < <73 <Clayton <W5PFG < <On Sun, Dec 22, 2013 at 1:50 PM, Alan [email protected] wrote: <> Hi, <> <> I was looking for something on QFHs, and found an <interesting set of antennas. <> <> http://preview.tinyurl.com/ougah8b <> <> They donated an antenna to the AMSAT Symposium 2-3 years <ago, but I have never heard one in use that I <> know of. Anybody use them, or know someone who has? <> <> 73s, <> <> Alan <> WA4SCA <> <> <> ----------------------------------- <> <> Keep Calm and Carry On <> <> _______________________________________________ <> Sent via [email protected]. Opinions expressed are those of <the author. <> Not an AMSAT-NA member? Join now to support the amateur <satellite program! <> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb <