[Elecraft] OT? K3s - WSJTX - MMTTY conundrum

[Don Wilhelm]

Gary,

What bandwidth are you using in AFSK A.  Normally it defaults to 400 to 
500 Hz, but your switch from DATA A to AFSK A may be confusing it.
I cannot speak to interaction between WSJTX and MMTTY, but you may find 
something there in the switchover.

Normally in MMTTY, you tune to a specific signal where in WSJTX you are 
setting to a wide bandwidth to view the waterfall of all signals in the 
passband.

This is only a guess.  Some control programs send commands to the K3 in 
the wrong order - changing modes before making a band change is one 
instance - that does not work with the K3/K3S.

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?
>