#795 gmfsk

[Alex V Flinsch]

from the gmfsk website http://gmfsk.connect.fi/
"gMFSK is a multimode HF terminal program for Linux and
other unix-like operating systems. Despite the name,
gMFSK can send and receive many digital conversational
modes typically used by radio amateurs on HF"

Note -- there are no open source'd projects for os x
that have anywhere near the functionality of gmfsk.

.