[aprssig] 2 port TNC

Ross Whenmouth ross at topwire.co.nz
Sat Dec 24 13:48:41 CST 2016


Hi Ev,

This probably isn't the best solution, but if you took 2x TAPR TNC2s 
with KISS-only EPROMS, and connected them "back to back" with an RS232 
crossover cable, then I'd expect that every Ax.25 packet received by one 
TNC would be automatically retransmitted by the other TNC (subject to 
normal CSMA etc channel access on the TNC doing the transmitting).

For remote reset capability, you could connect a DTMF decoder to the 
audio from one of the receivers eg:
http://qsl.net/zl2wrw/projects/dtmf2rly-1.1/dtmf2rly-1.1.html


73 ZL2WRW
Ross Whenmouth


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