> > Hello, > > Last night Aug 19, I captured ARISSAT VHF transmission using FCD and Audacity > audio software to save I/Q wide band signal on my Mandriva Linux system. > I monitored the signals using quisk. Doppler shift was not too fast at the > end of a nearly overhead pass in Paris. > For this first attempt I could note manage to listen ARISSAT and save the > signal simultaneously. > At the end of the pass, ARISSAT was very week but I decided to record the FCD > output blindly. > I saved stereo .wav file with 44100 samples per seconds for compatibility > with iPad iSDR application. I could then play back recorded file with iSDR. > Despite the faint signals Waterfall display showed clearly CW and BPSK > beacons and fine tuning the listening frequency through the touch screen > sensitivity of the iPad application let me decode parts of CW beacon with > iSDR 200 Hz filter. > > I will upload soon recorded wav file and screen capture of waterfall on my > site. > > 73 de Bernard, f6bvp > > Envoyé de mon iPad > >>
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