[Elecraft] K3S - DATA A vs AFSK A

[HP]

K3S using internal USB codec and W7 . 

I have an issue I dont understand --- N1MM /MMTTY -- RTTY --- using VOX for PTT. 

If I leave LIN OUT levels (about 35) and Windows levels (49 percent) then WSJT -sets up with 4 bars ALC 5th flickering - 
makes no difference if I run WSJT alone or run it thru N1MM running WSJT no change in settings . 

Then try to use AFSK A for RTTY I get no ALC bars at all - I see the RTTY diddles on the MMTTY screen - nothing I do will get any bars 
if I do nothng but switch to DATA A change nothing else - I get solid 7 bars and have to reduce MIC gain (LIN) to 10-11 from 35-37 to get 4 bars 5th flashing . 



I have the RTTY freq set 915-170 -MMTTY decodes fine in RX. 

What am I missing ?? 


Hank K7HP