"Joseph Fenn" wrote in message
va.net...
IMHO none of the sound card tools fulfill the requirement of
arq (formerly known as automatic error correction now known
and CRC checking). Hence they are not used where msg integrity
is the prime consideration from origin to destination and the
msg passes thru many gateways and channels to reach its final
destination point.
Joe ABM6JF/KH6JF
MBO (sysop) for AB6USA PBBS

Packet and Q15x25 mode have error correction, though not arq. Either of
these will send data error-free, and Q15x25 has impressive throughput.
Q15x25 uses psk streams, proving that psk can be utilized with effective
error-correction. It's not arq though.

Charles, N5PVL