http://spaceflight.nasa.gov/shuttle/reference/shutref/orbiter/comm/orbcomm/s...
--- Andrew Rich [email protected] wrote:
What do they use that freq for ?
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Andrew Rich VK4TEC [email protected] mailto:[email protected] http://www.tech-software.net
-----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of [email protected] Sent: Saturday, 9 February 2008 10:16 AM To: [email protected] Subject: [SPAM] [amsat-bb] Fw: [Mw] STS-122 S-Band signal heard Importance: Low
Just of interest.
James W8ISS
---------- Forwarded Message ----------- From: "Loren Moline WA7SKT" [email protected] To: [email protected] Sent: Thu, 7 Feb 2008 21:33:55 -0800 Subject: [Mw] STS-122 S-Band signal heard
Tonight I ran my tracking program and showed Atlantis was going to make a direct overhead pass. I noted the time and went out to shack and listened.
Just as predicted I heard the fast doppler on the main carrier at 2217.5MHz and followed it lower in frequency as it passed away from my location.
I am only using a so so preamp at antenna with 10db gain and a 3 1/2 turn helix. Coax comes to shack to a mixer and mixer to receiver with no post mixer amp. LO is a 2GHz generated from a 1GHz PLO locked to a 10MHz standard and a doubler.
I am not yet setup for serious spectrum display but saw the signal drift thru the display for my 10.7MHz SoftRock hooked to my IC-R7000 receiver.
This is the first time I have ever heard any signals from the shuttle.
Loren WA7SKT
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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