View Single Post
  #2   Report Post  
Old October 1st 06, 06:33 AM posted to rec.radio.amateur.homebrew
g. beat g. beat is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 36
Default Cheap, Small TNC?

"Bill Powell" wrote in message
...
I was working on designing a surface mount PC board to build up a
bunch of Bob Ball's nifty $25 PIC-based TNCs together so every RACES
radio would have one built-in. . . and then read the source code and
discovered it doesn't do AX.25 connected mode!

Any suggestions for a TNC that:
- Is cheap enough I can afford to give away 20 of them,
- Is small enough to install inside a mobile radio,
- Is AX.25 connected mode capable,
- Is NOT KISS or APRS (UI) specific,
- Is NOT dependant on ANY PC interaction or support,
- Will digipeat.


Bill -

The NO KISS specification I think eliminates the John Hansen products ?

He now lists these under the name Coastal ChipWorks - TNC X solution
http://www.tnc-x.com/

You can also ask John of his thoughts (his designs are also PIC based)
His TNC-X boards are expandable via an expansion header that allows the
addition of "daughter boards".

w9gb