- AFSK, in which a computer, using software that controls its sound card,
generates the correct tones and those tones are fed into the microphone
input of the transceiver. AFSK mode functions when the transceiver is in
SSB
mode
--
-larry
K8UT

Larry you were doing good to you got to AFSK. When pure sine waves are fed
into a SSB transciever audio, the output of the transmitter is the same as
FSK. This is what is suspose to hapen when using the sound card.

AFSK is generated if the transmitter is in the AM or FM mode. This is used
mainly on VHF and above on FM to use the digital modes such as rtty.