[aprssig] Homemade KISS/APRS TNC

OZ4HZ oz4hz at get2net.dk
Mon Aug 27 04:08:13 CDT 2007

I made a tracker with an 8051 type - the AT89C4051 and very soon there will 
be an upgrade with possibility to receive as well
but using a newer type AT89S4051

Vy 73 Hans, OZ4HZ

PS the code for this tracker is free to use  !

----- Original Message ----- 
From: <jecksons at softhome.net>
To: <aprssig at lists.tapr.org>
Sent: Monday, August 27, 2007 8:42 AM
Subject: [aprssig] Homemade KISS/APRS TNC

> Thank's
> Hai all
> Did someone here had information on how to built the KISS/APRS TNC with
> MCS-51(AT89S52 or DS89C450) with TCM3105NL.
> There was tons of info with MX614P,unfortunedly here the chip didn't
> available.There was but much expensive than TCM3105NL.
> According from hardware expert that the probelm was baudrate clock must
> precise than MX614 and
> we must used PWM or something else.
> Need info about TCM3105NL and MCS51(AT89S52 or P/DS89).
> Thank's a lot
> Vy 73 and 88
> Yd8bll
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