[aprssig] troubleshoot MFJ-1270B?

Bob Gould bobg575 at yahoo.com
Tue Sep 14 18:18:08 CDT 2004

Note sure if this will help but I have been working on
an MFJ1278. When I powered up the TNC it did just as
you described. It took me a while to figure out what
was going on. It turned out to be that the TNC was in
KISS mode when last used. Hope this helps.


--- Chris Kantarjiev <cak at dimebank.com> wrote:

> I just picked up a 1270B TNC, with the intent to
> turn it into a RELAY
> APRS digipeater. When I apply power, I get lights on
> and they all stay on. No serial communication so
> far. The ROM
> inside is marked SYSTEM TNC 2 1.2.8 - 32K.
> I've got some information here, but am wondering if
> this might be
> a commonly known problem, before I start poking with
> the oscope?
> Also, will this version of the ROM support RELAY
> operation, or 
> should I be planning to upgrade? To what, UIDIGII?
> Thanks,
> chris
> _______________________________________________
> aprssig mailing list
> aprssig at lists.tapr.org

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