[Xastir] Non communication with radio

[David Ranch]

Hello Liz,

We need a bit more information here.  What OS and version?  What version 
of Xastir?  What kind of radio?  What kind of TNC (or software TNC)?  Do 
you know for a fact that your Prolific (pl2303) cable is good?  The 
reason I ask this last one is that Prolific-based cables are renown for 
being unreliable though they usually work fine under Linux.

Have you tried any other programs to interact with the radio via this 
USB cable? ?

--David
KI6ZHD