[aprssig] Any suggestions for an embedded APRS packet encoder?

[Rich Mulvey]

Hi All:

   I've built up a small 1-wire weather station controller using a 
TStik, from http://www.tstick.com .  Among another things, it uploads 
data to the APRS-IS, Wunderground, etc.  I also have interfaced to a 
KPC-9612 to transmit the APRS weather packets directly to RF.

  What I'm looking for is a very small TNC in which I can just feed the 
weather report directly, via an RS-232 or TTL serial stream, and get out 
the modem tones for connection to the radio.  Something like the 
PIC-Encoder, only much smaller and simpler.  All I need is to be able to 
set the UNPROTO path, and then feed it the data.

   Any suggestions as to where I might find such a beast?  Commercial, 
or homebrew is fine.

Thanks,
   - Rich