Michael and BB,
Lou McFadin showed me a photograph a year or so ago of the S-band output measured before launch, and it showed 1.2W out.
The antenna is a 1.2 GHz antenna tuned to also operate on 2.4 GHz, about 2-3 inches tall.
There is quite a bit of path loss at 2.4 GHz, but I imagine you have a good preamp very close to the antenna.
73, Gould, WA4SXM ----- Original Message ----- From: "Michael Heim" kd0ar@sbcglobal.net To: AMSAT-BB@amsat.org Sent: Monday, March 16, 2009 6:58 PM Subject: [amsat-bb] S band downlink - AO-51
Worked VE3NPC on AO-51 V/s just now. We had the transponder totally to ourselves, and had a nice little chat. I was on this morning around 7:30, by myself. We have V/s all week. This is my favorite configuration, the signals are a LOT stronger on 2401.2 then on 70cm.
What is the TPO and antenna on S band on AO-51?
Such good conditions, I hope to hear you on!!
Michael Heim ARS KD0AR
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