[amsat-bb] Multiple Satellites successfully decoded from second pass

[Loren M. Lang]

I was able to detect several satellites from the earlier pass and decode
them. JY1-SAT was quite strong and I was able to successfully decode and
upload 7 packets from it. No stats have appeared on the new warehouse for
me yet, but I expect that it's in the queue somewhere and will eventually
make it through.

I used the RTL-SDR.com SDR dongle with SDRTouch on my Android phone to
record the pass along with an Arrow II LEO Satellite antenna. By carefully
centering my signal in the OSCAR Subband and recording full baseband, I was
able to record several 2 meter satellite signals from one pass and decode
them one at a time.

I also decoded and uploaded one frame from Fox-1Cliff during the safe mode
beacon. It was a little weaker and harder to pull out. The other satellite
I heard during that pass was ITASAT which is advertised to transmit an
AX.25 BPSK signal at 1200 bps. I'm less familiar with that setup, but I
tried to get UZ7HO Soundmodem to decode it with no success.

I was expecting to also hear ESEO on either 145.875 or the revised downlink
frequency of 145.895 MHz, but no luck there. There was a weak signal of
something a little below 145.875, but nothing I could make out.

I also hopped over to 436.5 MHz to grab a couple of the beacons from Al
Farabi 2 before the pass was over with success.

I've save a copy of the raw IQ captures of the signals in case they might
be useful for analysis.

- Loren
K7IW