CODEC2 hard coded data modes

CODEC2 OFDM data modes used by FreeDATA (FD)

Data Mode FD speed
level
RF band-
width (Hz)
Payload data
rate bits/s
Payload
bytes/frame
FEC Duration
(sec)
MPP test FreeDATA usage
DATAC0 - 500 291 14 (256,128) 0.44 70/100 at 0dB signalling, no longer used (deprecated)
DATAC1 2 1700 980 510 (8192,4096) 4.18 92/100 at 5dB data (medium SNR)
DATAC3 1 500 321 126 (2048,1024) 3.19 74/100 at 0dB data (low SNR)
DATAC4 0 250 87 56 (1472,448) 5.17 90/100 at -4dB data (low SNR)
DATAC13 sig 200 64 14 (384,128) 2.0 90/100 at -4dB signalling
DATAC14 sig 250 -- 5 ---- ---- ---- signalling

Source: https://github.com/drowe67/codec2/blob/main/README_data.md