Hi Stan, The website http://www.unisec.jp/unitec-1/en/cooperation.html gives quite a lot of info as well...if you wish to make direct contact then you can email Naomi Kurahara<[email protected]>
73 Graham G3VZV ----- Original Message ----- From: "Stan" <[email protected]> To: "Trevor ." <[email protected]> Cc: <[email protected]>; "Amsat Reflector" <[email protected]>; "Stephen Hicks, N5AC" <[email protected]> Sent: Wednesday, January 27, 2010 3:25 PM Subject: [amsat-bb] Re: [Mw] Satellite to carry Amateur Radio 5840.00 MHztelemetry beacon > This satellite holds some promise of a decent and doable microwave > technical challenge. > > It will be possible to use our 5760 Transverters for a RX only > application, maybe with minor tweaking. > > The LO is 5616 MHz, with the RF of 5840 MHz, the IF is 224 MHz, right in > the US 222 MHz band. > > Maybe with a bigger dish, and a very low noise figure preamplifier, > optimized at 5840 MHz, > we could be in the UNITEC-1 deep space telemetry collection business. > > The DEMI A32 LO with an external 10 MHz reference, can add the > frequency stability needed. > Or maybe Steve, N5AC, can preprogramm the A32 for a 5,840-145= 5,695 / 5 > = 1,139.0 MHz > > A reasonable challenge this winter morning, as I sip my lukewarm tea at > the dining room table. > > But more questions are raised: > > 1. Keplerian elements are great for satellites, but once UNITEC1 enters > deep space, > what do we use to calculate and predict the path for our accurate tracking > ? > > 2. Is there anything special about the modulation scheme ? > > Stan, W1LE Cape Cod FN41sr > > > > > > > Trevor . wrote: >> On May 20 Japan is planning to launch four "CubeSats". The largest of >> them, UNITEC-1, will carry a 15 watt Amateur Radio 5840.00 MHz telemetry >> beacon and travel into deep space towards Venus >> >> Three of the satellites will carry Amateur Radio payloads. On the AMSAT >> bulletin board Mineo Wakita JE9PEL writes >> >> Four CubeSats in Japan are planned to launch at 20 May 2010 >> together with PLANET-C which belongs to JAXA by H-IIA rocket. >> http://www.jaxa.jp/index_e.html >> >> UNITEC-1, NPO UNISEC (University Space Engineering Consortium) >> 5.8GHz >> http://www.unisec.jp/unitec-1/en/top.html >> >> Negai*", Soka University >> 437.305MHz CW, Packet 1200bps FSK AX.25 >> http://kuro.t.soka.ac.jp/main.html >> >> WASEDA-SAT2, Waseda University >> 437.485 MHz CW(FM), PCM-FSK(FM) 9600bps >> http://www.miyashita.mmech.waseda.ac.jp/Waseda-Sat2/index.htm >> >> KSAT, Kagoshima University >> Uplink: S-band(2GHz, 10kbps), Downlink: Ku-band(13.275GHz, >> 10kbps/1Mbps) >> http://www.sci.kagoshima-u.ac.jp/~nishio/download/Ukaren2008Nishio.pdf >> >> IARU Amateur Satellite Frequency Coordination information >> Unitec-1 http://www.amsat.org.uk/iaru/finished_detail.asp?serial=141 >> Negai http://www.amsat.org.uk/iaru/finished_detail.asp?serial=90 >> WASEDA-SAT2 http://www.amsat.org.uk/iaru/finished_detail.asp?serial=123 >> >> AMSAT Bulletin Board AMSAT-BB >> http://www.amsat.org/amsat-new/tools/maillist/ >> >> AMSAT-UK publish a colour A4 newsletter, OSCAR News, that is full of >> Amateur Satellite information. >> Join online at https://secure.amsat.org.uk/subs_form/ >> ---- >> 73 Trevor M5AKA >> Daily Amateur Radio News (Email/RSS): http://www.southgatearc.org/ >> Email Your News To: editor at southgatearc.org >> Or Use Form at: http://www.southgatearc.org/news/your_news_1.htm >> --- >> >> >> >> >> >> >> _______________________________________________ >> Microwave mailing list >> [email protected] >> http://www.valinet.com/mailman/listinfo/microwave >> >> > > _______________________________________________ > 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 _______________________________________________ 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
