From Signal Identification Wiki
|Short Description||FT4 is an amateur radio QSO communication protocol|
|I/Q Raw Recording||—|
FT4 is an amateur radio contesting communication protocol developed by Joe Taylor (K1JT) and Steve Franke (K9AN) that is descended from FT8. FT4 uses 4-FSKFrequency-Shift Keying modulation, transmission takes less than 7.5 seconds.
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