I've read that our ears and brains are not sensitive to phase error so would think that psk31 would not be possible in our heads. But that single tone FSK should be possible.
73, Tom n4zpt kd4e wrote: >> I have to disagree Gabriel, PSK is a form of >> modulated coding, just as is FSK. CW in its simple >> form is a carrier that is on or off and is a form >> of digital signal that the brain can decode, such >> as is voice. But PSK, FSK, usally infers a code >> the brain can't decode. PSK and FSK mean Phase >> and Frequency Shift Keying. > > Interesting question. > > Is it literally "impossible" for the brain to > decode PSK or FSK or is it just really difficult? > > Are there discernible patterns in the tone sequences > used or are they too complex to learn to discern, > even if sent very slowly? > > Not important at all, just curious! >