I am not sure what you are asking here.?
The TT4 function would be best described as:
? ?a) Send only TNC or tracker
? ?b) Receiver only? TNC or decoder
? ?c) Combined fully functional TNC
?
What functions are you trying to enable, and for what purpose?
Examples:
? ?a) Full APRS TNC:?
? ? ? ?APRS position reporting on RF and back through an attached PC, plus APRS style DIGI (WIDEn-N style), ...
? ?b) Keyboard-to-Keyboard TNC:
? ? ? ?Computer running terminal software for interfacing to BBS style nodes, Callsign and alias DIGI with no APRS functions, ...
?
-------
Robert Giuliano
KB8RCO
