In theory, this is just a small matter of programming. It's on the list for future consideration. 73, Wayne N6KR On Apr 29, 2007, at 7:31 AM, Chris Gibson wrote: > Will it be possible to receive/transmit MFSK16 on the K3 *without* > using an external PC? > > 73 de Chris, MØPSK --- http://www.elecraft.com