Hi Bill. TU, PTT method in WSJT-X is "CAT" and using "DX Lab Suite Commander." In Commander DTR is "off;" RTS is "TX." On the "General" tab "PTT: Rcving" box is not checked.
>you need to give us more information. Let;s start with just the K3. What
>do you have checked for "Settings->Radio->PTT Method" in WSJT-X? What
>PTT method are you using in Commander for your K3?