[amsat-bb] CAS4A CAS4B SDR recordings?

[Jean-Pierre Godet]

   Hi Douglas, all,

   On the next passes over the south of western Europe, tomorrow 
morning, I will record an i/q file and give you a link to download it 
(caution : 1 mn ==> 100 MB).

   Despite the fact that the two birds here never climbs very high above 
the horizon, maybe 30 deg., the signal is very strong and the 
demodulation of the 4800 bps GMSK telemetry very easy. During the pass, 
you doesn't lose a frame.
   Conditions : GPA + preamplifier in the attic, FCD-Pro+, Gqrx (SDR 
prgm), Gpredict (Doppler shift tracking), DireWolf 1200/2400/4800/9600 
bps FSK/GMSK demodulator).

   Have a nice evening, 73 !

   J-P F5YG

On 16/06/2017 16:30, Douglas Quagliana wrote:
> Does anyone have an SDR recording of CAS4A / CAS4B? I would like to try to demodulate and decode the 4800 baud telemetry signals and see what they say.
> 
> Regards,
> Douglas
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