[aprssig] IP Based Modems (TNCs)

[Rick Green]

Eric,
  Look also at the products offered by B&B electronics (www.bb-elec.com).

Some of theirs come with 'virtual serial port' drivers for windows, so 
that it looks like a hardware serial port to the application, but the 
physical port is remote. You'll only need one, not two.  From Linux/unix, 
they present as a telnet server.  Handy gadgets in a lot of applications.

-- 
Rick Green

"They that can give up essential liberty to obtain a little
  temporary safety, deserve neither liberty nor safety."
                                   -Benjamin Franklin