[Elecraft] K3 RTTY MMTTY, etc

[Nick-WA5BDU]

I'd like to figure out how to get on RTTY by noon tomorrow.  I'm working 
with N1MM and MMTTY at the moment, with HRD and my trusty paddle as 2nd 
and 3rd back-ups.

Transmit control -

It looks like the K3 gives the option of having RTS or DTR actuate the 
PTT.  MMTTY seems to use both, with no choice to use just one.  I tried 
that method, but with serial port connected, the PTT was asserted at all 
times.  Tried both DTR - OFF and RTS - OFF in the setup with same 
result.  (First field is for PTT control and 2nd is for keyed line control.)

Second choice is VOX.  I set the K3 for AFSK A, connected line out of 
the PC to line in of the K3, turned VOX on, told MMTTY to transmit.  No 
VOX operation.  Plugged phones into the line out jack of the PC and 
verified -- yes, good strong RTTY tones being generated.  I did try 
adjusting the MIC gain, which seems to become a line-in control for this 
mode.  I also did go to the menu and chose Line In as the MIC input.  
What's left?

I guess my third choice would be to use the serial port, have MMTTY send 
ACSII data, and the K3 would do the FSK thing.  But I'm not sure how I'd 
get around my PTT control issues.

Receive -

Seems to be working.  No RTTY on at the moment, but when there's a 
signal, I see it in the waterfall.

PC / OS-

I'm using a new Vista laptop.  I know MMTTY isn't guaranteed to work 
with Vista, but I think it's working well enough that I should be able 
at least to operate the VOX.  The rig control features of HRD are 
working fine.

TNX / 73-

Nick

--what a tangled web we weave / when we let computers become part of our 
ham stations ...