I used to operate RS-10/11, RS-12/13, and RS-15 with a Drake T-4XB driving a Drake TC-2 transmit converter, putting out about 40 watts to a homebrew turnstile (later, to an Eggbeater), and the matching Drake R-4B and a simple dipole in the attic (no preamp) for the mode A downlink. Also had the Drake SC-2 receive converter for modes T and KT... Made lots of Q's with some people who were very amused at my "hollow state" station! Not sure if your Allied receiver is quite as stable as the R-4B was after it had warmed up for a half hour or so, but hey, my first SSTV and RTTY SWL'ing was with an old Hallicrafters S-41G (talk about drift...) and a Radio Shack Color Computer...
73, George, KA3HSW
----- Original Message ----- From: "Tyler Harpster" tyler881@adelphia.net To: AMSAT-BB@amsat.org Sent: Tuesday, February 06, 2007 9:49 PM Subject: [amsat-bb] AO-07 RX - TX more questions...
With my ARR 28 MHz preamp sitting here beside me and plenty of plans for antennas, I have a few more questions:
- Can I really pick up AO-7 with my antique Allied Communications tube
receiver if I put the preamp at the antenna?
- How much EIRP do I need on the uplink? Can I use my IC-706 barefoot,
or am I looking at a Mirage amp? I think the 706 puts out 50 watts on 2 meters. I'd probably be using a 3 element beam for uplink with something like 9? db gain. I think I saw something like a 90 watt EIRP would be sufficient for the uplink.
Thanks for everyones help so far!
73 DE KM3G Tyler
- Do I really gain a few more db in gain if I suffer while I put the
antenna up in the supercold weather here in PA, or is that just an urban myth? :-)
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