[amsat-bb] AO-92 in Camera Mode

Hans BX2ABT hans.bx2abt at msa.hinet.net
Thu Jul 11 03:27:26 UTC 2019


I just received my first HS data from AO-92. Nothing was decoded using 
FoxTelem, but I got the IQ file to play around with. It was a low pass 
for me, so signals were only 20 db over noise using my AirSpy mini. That 
might be too little, although I can receive Falconsat-3 at those levels 
without any problems.

What are the settings to watch out for decoding HS data (deviation, 
soundcard, Foxtelem)? Or should it "just work"? The only difference I 
can see between FS-3 and AO-92 is that audio from GQRX is going out to 
PacSat Ground Station via UDP and Foxtelem gets it from GQRX via a 
virtual audio loop (set in Pavucontrol).

Still exited to receive AO-92 with HS data for the first time. I saw on 
Twitter that JA0CAW did get part of an image, so for him it did work.

73 de Hans

BX2ABT


On 07/11/2019 10:27 AM, Chris Thompson via AMSAT-BB wrote:
> For anyone decoding images and using FoxTelem with Doppler Tracking enabled
> I would appreciate any feedback on how high speed data is being decoded.
> Especially if you decoded camera frames in previous runs, like last
> October, and can compare.
>
> This was a new feature and previously tracking of the high speed signal was
> not great.  Let me know if it is better (or worse!)
>
> 73
> Chris
>



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