[Elecraft] K3 FSK RTTY Problems

[Ed]

If you are using MMTTY make sure that you have the "EXTFSK" patch set up 
in both the TX setup window and the Misc window.  I get tripped up on 
this every once in a while.  If these settings are correct you probably 
have a physical problem with the FSK keying lead between the interface 
and the K3.  You can check the radio by grounding pin 1 of the ACC 
(DB15) connector.  The tone will shift when grounded.

Good luck
Ed