[GreenKeys] ST-6 question

[Russmill47 at aol.com]

I use my ST-6 every day on 20M to work hams worldwide who  have all kinds of 
TNC and sound card programs.
 
I've worked almost 50 states and 50 countries since getting back  to RTTY 
last November.
 
You should have no problems with an ST-6 on-the-air.
 
73,
 
Russ
 
WA3FRP