Re: [Discuss-gnuradio] NanoSail-D turns out isn't lost!

[Patrik Tast]

Hi Alex /Marcus & All

I have exactly the same result as Alexandur (not only once)
I guess we used almost the same RCP antenna 
http://www.poes-weather.com/~patrik/AO-51/

Yesterday nite NanoSail passed FI at zenith, I could not hear anything from 
it (once the signal jumped but staid only for < 2 sec so I'm not sure what 
it was).
I thought, my system is erroneous?  I cross checked against ECHO(AO-51) 
today and it seems to work 
http://www.poes-weather.com/~patrik/AO-51/Jan-22-2011/
I retried on NanoSail this evning (68 deg max elev) using the new keps 
published on the NASA page but nothing, nada.

Sumthing is fundamentally wrong how I/we do it. I guess it could be LHCP?
Perhaps someone (who speak English) could query NASA on howtos?

Patrik

----- Original Message ----- 
From: "Alexandru Csete" <address@hidden>
To: <address@hidden>
Sent: Friday, January 21, 2011 3:35
Subject: Re: [Discuss-gnuradio] NanoSail-D turns out isn't lost!


On Fri, Jan 21, 2011 at 2:03 AM, Marcus D. Leech <address@hidden> wrote:
> If you're in a position to listen for the beacon packets of NanoSail-D, 
> some
> of the details are here:
>
> http://nanosaild.engr.scu.edu/dashboard.htm
>
> Wish my SBRAC dish was fully operational. I'd actually be able to *track*
> it--I've got 400MHz feeds, and
> a WBX-based receive chain. So much coolness, so little time :-(

I tried earlier today with a handheld Arrow II yagi connected directly
to WBX. I could hear it but it was too weak to decode. A bigger yagi
should give sufficient signal.
In case you receive, it is very easy to decode the telemetry. It uses
1200 bps AFSK FM modulating the carrier, so a simple NBFM receiver and
the audio fed to e.g. multimon
(http://www.baycom.org/~tom/ham/linux/multimon.html) works. Decoded
telemetry can be submitted to the ops team at
http://beacon.engr.scu.edu/Submission.aspx

Have fun!

Alex

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