[aprssig] What is "TNC Channel Switching"?

Andrew Pavlin AndrewEMT at hotmail.com
Sat Apr 12 13:03:12 CDT 2014

Funny. I have a 1278 as well, and was using it (in KISS mode) with JNOS back in 1998 when there was a multi-state TCP/IP radio net across the northeast US.

Andrew, KA2DDO
Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: Greg D <ko6th.greg at gmail.com>
Sender: aprssig-bounces at tapr.org
Date: Sat, 12 Apr 2014 10:55:29 
To: TAPR APRS Mailing List<aprssig at tapr.org>
Reply-To: TAPR APRS Mailing List <aprssig at tapr.org>
Subject: Re: [aprssig] What is "TNC Channel Switching"?

Stephen H. Smith wrote:
> However, many users still use the command-line mode instead, since 
> many older TNCs don't support KISS.   (Particularly the MFJ 127x 
> series TNCs that crammed in numerous other modes, so that there wasn't 
> enough room in the 27256 eprom for KISS support.  I have replaced the 
> OEM firmware on countless MFJ 127x TNCs with the final release 
> "official" TAPR 1.1.9 firmware precisely to regain the KISS 
> capabilities.) 

Um, I have an MFJ 1278T TNC, and am running it in KISS mode under 
APRSIS/32.  Stock firmware on it, I believe, though I don't recall what 

Greg  KO6TH

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