3CAT-2

3CAT-2 BPSK 9600bps

CubeSat 3CAT-2 was launched in Beijing, 15 Aug 2016.
Universitat Politecnica de Catalunya, Spain
Spaceflight101 News

Downlinks list as follows.
 145.970MHz BPSK 9600bps
2401.000MHz GMSK up to 100kbps

TLE maybe
2016-051A  41731U  16051A
2016-051B  41732U  16051B
2016-051C  41733U  16051C

3CAT-2 ID  41732U  16051B
Decoding packets in 3CAT-2
Telemetry format of 3CAT-2
Missions & Projects 3CAT-2


3CAT-2 decoded by JA5BLZ
01:54 UTC, 27 Aug 2016
03:06 UTC, 28 Aug 2016
3CAT-2 9K6 BPSK
SDR# tune manual
UZ7HO BPSK 9600
AGW-online-kiss
Replay I/Q wav

 


28 Aug 2016
3CAT-2 9k6 BPSK
Received wav by JE9PEL

28 Aug 2016
3CAT-2 9K6 BPSK
SDR# tune manual
UZ7HO BPSK 9600
AGW-online-kiss
Source I/Q wav
Decoded wav by JE9PEL

 


[Supplement]
Re: Soundmodem BPSK 9600
From: Andy UZ7HO
To: Mineo Wakita
Date: Sun, 28 Aug 2016 21:00:08 +0300

Hi Mineo!

That's good news.. I see you have used ~6800 Hz carrier frequency,
I recommend to use ~9-10 kHz that because baseband signal is around +/- 8 kHz.

PS. Thank you for APRS 9600 record, that you sent me some years ago,
    today it was very useful for my tests.

Andy UZ7HO


3CAT2 real-time decoded

I, JE9PEL could decode in real-time 3CAT2 9k6 BPSK.
11:11-11:23JST, 4 Sep 2016, Ele 76 S-Z-N, 145.970MHz 9600bps BPSK
http://www.dropbox.com/s/m28zwb08jx50c54/60904c33.wav?dl=0

 


2016-09-04 02:15:28.950 UTC: [89 Bytes KISS Frame (without CRC)]
ctrl: 32   PID: 30 {I10^}   56 Payload Bytes
from 3CAT2 to UPC via _x____-9,______-10: 
   1 > 34 20 30 39 09 31 20 30 20 35 2E 34 65 2D 30 31 20 32 2E 36 
  21 > 65 2D 30 31 20 31 2E 30 65 2B 30 30 20 36 2E 39 65 2D 30 39 
  41 > 20 31 2E 37 65 2D 30 39 20 31 2E 37 65 2D 30 38 
4 09.1 0 5.4e-01 2.6e-01 1.0e+00 6.9e-09 1.7e-09 1.7e-08
_________________________________________________________________________

2016-09-04 02:15:48.610 UTC: [89 Bytes KISS Frame (without CRC)]
ctrl: 32   PID: 30 {I10^}   56 Payload Bytes
from 3CAT2 to UPC via _x____-9,______-10: 
   1 > 34 20 31 30 09 31 20 30 20 32 2E 37 65 2D 30 31 20 31 2E 35 
  21 > 65 2D 30 31 20 31 2E 30 65 2B 30 30 20 36 2E 39 65 2D 30 39 
  41 > 20 31 2E 37 65 2D 30 39 20 31 2E 37 65 2D 30 38 
4 10.1 0 2.7e-01 1.5e-01 1.0e+00 6.9e-09 1.7e-09 1.7e-08
_________________________________________________________________________

2016-09-04 02:16:29.680 UTC: [89 Bytes KISS Frame (without CRC)]
ctrl: 32   PID: 30 {I10^}   56 Payload Bytes
from 3CAT2 to UPC via _x____-9,______-10: 
   1 > 34 20 31 30 09 31 20 30 20 31 2E 33 65 2D 30 31 20 31 2E 32 
  21 > 65 2D 30 31 20 31 2E 30 65 2B 30 30 20 37 2E 30 65 2D 30 39 
  41 > 20 31 2E 37 65 2D 30 39 20 31 2E 37 65 2D 30 38 
4 10.1 0 1.3e-01 1.2e-01 1.0e+00 7.0e-09 1.7e-09 1.7e-08
_________________________________________________________________________

2016-09-04 02:16:49.460 UTC: [89 Bytes KISS Frame (without CRC)]
ctrl: 32   PID: 30 {I10^}   56 Payload Bytes
from 3CAT2 to UPC via _x____-9,______-11: 
   1 > 34 20 30 39 09 31 20 30 20 36 2E 34 65 2D 30 31 20 33 2E 33 
  21 > 65 2D 30 31 20 39 2E 30 65 2D 30 31 20 36 2E 39 65 2D 30 39 
  41 > 20 31 2E 37 65 2D 30 39 20 31 2E 37 65 2D 30 38 
4 09.1 0 6.4e-01 3.3e-01 9.0e-01 6.9e-09 1.7e-09 1.7e-08
_________________________________________________________________________


[Reference]
Telemetry format of 3CAT-2
How hard is it to decode 3CAT-2?  by Daniel Estevez