[amsat-bb] Re: Fwd: Re: [Mw] Japanese Lunar Orbiter received.

[Trevor]

See also 

Finally picking up Selene in Stockholm 
http://www.svengrahn.pp.se/trackind/Selene/Selene.html 

73 Trevor M5AKA

--- truckwiz <truckwiz at bwig.net> wrote:

> Guy's 
>  That another problem we are working on (for the lunar x prize). how big of
> transmitter do we need to send data and high definition video back from the
> moon?
> 
> Thanks' Brian
> 
> -----Original Message-----
> From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
> Behalf Of Edward Cole
> Sent: Saturday, November 24, 2007 6:08 PM
> To: amsat-bb at amsat.org
> Subject: [amsat-bb] Fwd: Re: [Mw] Japanese Lunar Orbiter received.
> 
> For those speculating on what it will take to receive a signal from 
> the Moon, check this message received on the "microwave reflector":
> 
> 
> >X-Original-To: microwave at echo.valinet.com
> >Delivered-To: microwave at echo.valinet.com
> >X-Originating-IP: [24.18.44.7]
> >From: "Loren Moline  WA7SKT" <lmoline at hotmail.com>
> >
> >Rex,
> >
> >As per Paul Marsh the frequency for the Chinese orbiter doppler 
> >beacon is 2234.533 +/- doppler.
> >
> >Loren
> >
> > > Date: Thu, 22 Nov 2007 03:05:20 -0800
> > > From: rexa at sonic.net
> > > To: microwave at echo.valinet.com
> > > Subject: Re: [Mw] Japanese Lunar Orbiter received.
> > >
> > > Loren Moline WA7SKT wrote:
> > > > Hello Friends,
> > > >
> > > > For those interested I again tonight received a signal from the 
> > newly launched Japanese Lunar Orbiter.
> > > >
> > > > This was received with my newly built S-Band downconverter and 
> > a 3 1/2 turn helix antenna.
> > > >
> > > > Frequency drifted due to doppler from 2263.605Mhz to 
> > 2263.581MHz before it went around the other side. I later acquired 
> > it after it came back around. I have not yet established a period of
> orbit.
> > > >
> > > > This was a great way to test my downconverter.
> > > >
> > > > Loren  WA7SKT
> > > >
> > > > 
> >
> > > >
> > > Congratulations on the reception. Now you've got me interested.
> > >
> > > Info I just looked up says frequencies are 2212, 2219, 2287, 8456. So do
> > > you think your 2263 was doppler shifted 2287? I wonder if the satellite
> > > doppler has much effect vs. the moon itself. Calculating the exact
> > > doppler must be quite a math exercise.
> > >
> > > Are you still planning to try the 8 GHz frequency too? Or have you
> already?
> > >
> > > A wiki for the satellite says the period of the main satellite is 2 hrs.
> > >
> > > For John, the links say it will be at the moon for about a year. At the
> > > end they intend to do a soft landing on the moon.
> > >
> > > Here are some links I found tonight, (there are lots more.)
> > > Selene (Kaguya):
> > > http://en.wikipedia.org/wiki/SELENE
> > > http://www.selene.jaxa.jp/en/communication/com_faq_e.htm
> > > http://www.selene.jaxa.jp/index_e.htm
> > >  transmitters & freqs described in this one:
> > > http://ivs.nict.go.jp/mirror/publications/gm2006/kawano/
> > > http://www.aerospaceguide.net/spacecraft/selene.html
> > > http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1233.pdf
> > >
> > > Seems the Chinese also have a satellite, Chang'e, orbiting the moon too.
> > > http://en.wikipedia.org/wiki/Chang'e_1
> > >
> > > I couldn't find any information about downlink frequencies for the
> > > Chinese one. Does anyone know anything about that one. Some of the
> > > information seemed to say it would be playing Chinese music.
> > >
> > > _______________________________________________
> > > Microwave mailing list
> > > microwave at lists.valinet.com
> > > http://www.valinet.com/mailman/listinfo/microwave
> >_______________________________________________
> >Microwave mailing list
> >microwave at lists.valinet.com
> >http://www.valinet.com/mailman/listinfo/microwave
> 
> 73,
> Ed - KL7UW
> ======================================
>   BP40IQ   50-MHz - 10-GHz   www.kl7uw.com
> 144-EME: FT-847, mgf-1801, 4x-xpol-20, 185w
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> ====================================== 
> 
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