[amsat-bb] Direwolf for CAS-4 telemetry decoding

[Hans BX2ABT]

A hint for people who want to use Direwolf instead of UZ7HO's soundmodem.

I finally worked out why I wasn't having success with decoding telemetry 
from CAS-4AB: for decoding 4800 baud signals you need the K9NG/G3RUH 
baseband and that needs a special setting in the Direwolf config file, 
namely in the modem entry. Normally the modem entry looks like this....

MODEM 4800

Change it to the following and it works....

MODEM 4800 0:0

This info can be found in section 9.2.2 "Radio channel -Modem 
configuration , general form" of the Direwolf user guide.

You can find the complete config file and screenshots of the decoding 
process on my website: BX2ABT.com


Next step is to decode telemetry from the XiWang sats. They are using 
9600 baud and from what I understand the GOMX-1 baseband. Not sure what 
the difference is with G3RUH, so any hint on reading material to start 
grokking this stuff is apperiated.

73 de Hans

BX2ABT