[Elecraft] K3 - Asserting DTR/RTS for PTT

[Mike]

Apparently I don't understand the use of DTR/RTS for PTT.

If I assert DTR, the red xmit LED comes on, but when I send an RTTY 
string to the rig, there is no output. DTR is turned on in CONFIG. I'm 
in DATA mode and set for AFSK A. What I'm after is a way to avoid VOX 
with CW ( Yeah I know for CW I need to be in CW mode), RTTY, and PSK. Is 
there a way?

73, Mike NF4L