FST4W test script using WSJT-X latest version (after 2.3.0)

decoded.txt

0000   0   80   0.0   1500.   0   JJ1BDX PM95 37                        FST4

fst4w-cli.md

FST4W command line interface

Decoding/preparing audio files

See fst4wtest.sh

decoded.txt format

From KA7OEI's blog article:

The fields are

• time UTC
• unknown - possibly drift in Hz
• SNR in dB
• DT?
• Audio frequency in Hz
• unknown
• Callsign received
• Grid of received station
• Reported TX power in dBm
• Always "FST4"

References

• Using the jt9 executable to receive FST4W signals by KA7OEI
• Gwyn Griffiths et al., FST4W on the HF Bands: Why - What to expect - Equipment - Results., TAPR DCC 2022 Paper (PDF)
• Gwyn Griffiths et al., FST4W on the HF Bands: Why - What to expect - Equipment - Results., TAPR DCC 2022 Slides (PDF)

[More to come?]

fst4wtest.sh

#!/bin/sh
~/bin/wsjtx/bin/fst4sim "JJ1BDX PM95 37" 120 1500 0.0 0 0 1 95 F
sox 000000_0001.wav -r 48k -e signed-integer -b 16 -t wav 000000_0001_48k.wav gain -12
sox 000000_0001_48k.wav -r 12k -e signed-integer -b 16 -t wav 000000_0001_12k.wav
jt9 -W -p 120 -f 1500 -F 200 000000_0001_12k.wav