[aprssig] Help with old TNC please

Bill Vodall WA7NWP wa7nwp at jnos.org
Thu Jun 2 21:32:58 CDT 2005

> The Heath TNC-1 is NOT compatible with APRS or KISS. This is a TNC-1
> which was the first form of a packet TNC. You need a model that is
> compatible with TNC-2 command structure to get KISS compatibility

There is nothing special about the TNC-2 when it comes to KISS mode...

>From the first paragraph of Phil's KISS document:


 The KISS ("Keep It Simple, Stupid") TNC provides direct computer to TNC communication using a
simple protocol described here. Many TNCs now implement it, including the TAPR TNC-1 and TNC-2 (and
their clones), the venerable VADCG TNC, the AEA PK-232/PK-87 and all TNCs in the Kantronics line

It is possible that  the TNC-1 firmware is an version without KISS...

Bill - WA7NWP

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