LINUX

Satellites on LINUX #1


 LINUX Ubuntu + GQRX + UDP + Direwolf + Gpredict 

ISS decoding on LINUX

28 July 2016
11:25-11:35 UTC
Ele 26 deg, W-N-NE
1200bps AFSK
145.825MHz




UWE-3 decoding on LINUX

29 July 2016
11:02-11:15 UTC
Ele 78 deg, S-W-N
9600bps GMSK
436.395MHz




DTUsat-2 receiving on LINUX

30 July 2016
00:33-00:44 UTC
Ele 20 deg, SE-E-N
2401.851->145.851MHz USB



DTUsat-2 streaming in GQRX
  



DX-1 decoding on LINUX                    Perseus-M1 decoding on LINUX

DX-1                                        Perseus-M1
1st Aug 2016                                7 Aug 2016
22:12-22:23JST                              23:04-23:17JST
Ele 25 deg, SE-E-N                          Ele 76 deg, N-E-S
9600bps GFSK                                9600bps GFSK
438.225MHz                                  400.170MHz

 


HORYU-4 receiving on LINUX Ubuntu1610

HORYU-4 received 2.4GHz using LINUX
11:45-11:56 UTC, 5 Dec 2016, Ele 20 W-S-SE, 2400.300MHz 100kbps BPSK

    


MXL_Client installing

 1. http://mxl-ops.engin.umich.edu/
 2. http://exploration.engin.umich.edu/blog/?p=2535
 3. http://www.pe0sat.vgnet.nl/decoding/unix-tlm-decoding/
 4. Get an account at the site of University of Michigan.
 5. Set your account and Login at this site.
 6. Input your "Username and Password" in the popuped window.
 7. Get "API Access Token" number in the bottom right of the display.
 8. Press 'Dounload Public Client Launcher' in 'MXL Satellite Client'.
 9. Download 'mxl_client.zip'
10. Ubuntu -> Downloads -> [mxl_client.zip] -> right_click -> Open with Archive Maneger -> Extract
11. Ubuntu -> Downloads -> [mxl_client] -> [Docs] -> Read 'index.html'
12. Ubuntu -> Downloads -> [mxl_client] -> [groundstation] -> Select 'config_props'
13. Edit 'config_props' as follows:
      radio.1.name=Radio
      radio.1.address=localhost
      radio.1.port=8001
      radio.1.type=KISS
      radio.1.tncport=1
      client.callsign=JE9PEL
      client.id=JE9PEL_GS
      server.address=mxlab.engin.umich.edu
      server.port=12805
14. Install java using the following:
      username@hostname:~$ sudo apt-get install default-jre
      username@hostname:~$ java -version
15. Run GQRX, Direwolf, and MXL_Client as follows.
16. $ cd Downloads/mxl_client/groundstation
17. $ java -jar groundstation_launcher_public.jar
18. Input 'API Access Token' number in the popup window.
19. Now, GQRX -> UDP(port: 7355) -> Direwolf(KISS port=8001) -> MXL_Client


 


Direwolf_Decoder & AFSK1200_Decoder

  Ubuntu 'menu_bar' -> Gqrx_Tools -> AFSK1200_Decoder
  GQRX -> Press the 'UDP' button at the bottom right
  GQRX -> Receiver Options -> Filter width: User(60.4k)
                           -> Frequency: 144.657MHz
  $ direwolf -r 48000 -B 1200 -t 0 udp:7355
  $ direwolf -r 48000 -B 9600 -t 0 udp:7355

  APRS frequency: 144.640MHz ... 9600bps FSK
                  144.660MHz ... 1200bps AFSK
  APRS MIC-E Format: My_HP miceconv.htm

 


 Gpredict 
 1. $ sudo apt-get install gpredict
 2. $ gpredict
 3. Set the latitude and longitude on Menu bar of Ubuntu.
 4. Gpredict -> Edit -> Preferences -> Ground Stations
 5. Gpredict -> Edit -> Update TLE -> From network
 6. Gpredict -> Edit -> Preferences -> Interfaces -> Radios -> Add New
 7. Gpredict -> File -> New Module -> ISS etc.
 8. LINUX -> Home -> .config -> Gpredict -> gpredict.cfg, satdata, etc.
 9. Set the host and port on Gprecict and GQRX as shown below.
10. GQRX -> Tools -> Remote control settings -> host, port etc.
11. Triangle button in the upper right of Gpredict -> Radio Control
12. Set the satellite frequencies, and press Engage & Track button.
13. Then it will begin the automatic tracking of Doppler shift.

    * ::ffff:127.0.0.1
      http://wakky.asablo.jp/blog/2019/02/24/9040055
      http://www.ne.jp/asahi/hamradio/je9pel/gqrxgpre.htm

 
 
 


[Reference]
Unix TLM decoding  by PE0SAT
Controlling gqrx   by WordPress
GQRX and Gpredict completed link  by JE9PEL