It seems that I have recorded some videos about my early test with the system back in 2015. This time it was about SYNOP, those funny sounding HF transmissions that sounds like a morse code after some Quattro-Espresso’s.
Receiver (HW): RTL-SDR dongle, HamItUp converter, LongWire antenna, LNA4HF LNA
Receiver (SW): SDR#
Decoder (SW): MultiPSK