[Elecraft] OT? K3s - WSJTX - MMTTY conundrum

[Don Wilhelm]

Gary,

One thing to check is when you change from WSJTX to MMTTY, does the K3 
data mode change to AFSK A in LSB mode?  If not, the software is to 
blame.  The sequence of commands (or lack of commands) sent to the K3 
may be part of the problem.

You certainly can use DATA A for RTTY if you shift to the ALT sideband, 
but the bandwidth will likely be set wide.

Where are you trying o decode? on the K3 or on MMTTY?

73,
Don W3FPR

On 9/17/2017 3:37 PM, Gary Smith wrote:
> Hard to enter a short subject that is
> complete...
> 
> Have a K3s using USB to the computer & the
> internal card for digital modes.
> 
> I wanted to work a few Q's in the RTTY
> contest and have been using WSJT-X for FT8
> contacts.
> 
> In the K3s WSJTX requires Data A for FT8
> and in MMTTY it requires AFSK A (45BPS is
> normal).
> 
> I went to use MMTTY after using WSJTX and
> with an excellent scope copy of the RTTY
> signals, gibberish is on the screen. I
> tried Reverse; REV in MMTTY and tried ALT
> in the K3 and no benefit. I tried so many
> things to decode in MMTTY but nothing
> worked until some random change in a K3s
> setting worked and then perfect copy as
> usual.
> 
> I later clicked on WSJT to make a Q, the
> radio complied and switched to the
> settings for WSJT and when I went back to
> MMTTY, the copy was again gibberish. I
> don't recall what it was I did to set the
> K3s back so MMTTY can decode RTTY I did
> return it to AFSK A 45 but nothing
> decodes.
> 
> It was a K3 setting that made the
> difference but I have no idea what it was
> I chanced on. anyone work out this issue
> yet when switching from WSJTX to MMTTY &
> the change in settings then required in
> the K3s?