Hi list,
has anybody encountered a similar little quirk: when I am receiving in
MFSK 8 or 16, AFC being active, it does not function; instead it is
necessary to manually adjust the two vertical lines exactly on the
received signal.
vy73 Fred DL6XAZ
All of the MFSK modes require that the initial signal acquisition be within a few Hertz of the actual signal. Thereafter the AFC will keep the signal centered. The AFC loop has a fairly long time constant. In fldigi a process called puncturing is used to defeat the effect of CWI.
73, Dave, W1HKJ
