[aprssig] MFJ 1278

Stephen H. Smith wa8lmf2 at aol.com
Fri Dec 23 22:10:04 CST 2005

fred at wb4aej.com wrote:
>      I have an MFJ 1278 stashed away at home (I'm away on Christmas vacation at the moment).  I'm toying with the idea of setting up an IGATE via my cablemodem so that our new APRS digi that I am planning can send it along to us.  
>      How suitable is the MFJ 1278 for that purpose?  
>                                         Fred, WB4AEJ 
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Any TNC can act as an igate if an external program is providing the 
APRS-specific  smarts. 

However a TNC that supports KISS mode makes the job a bit easier since 
you don't have to worry about differing TNC command syntax from one 
model to another.   However,  you must use a program like UIview or 
APRSplus,  that supports operation in KISS mode,  take advantage of a 
KISS-capable TNC.

(I am not certain but I think the MFJ1278 doesn't support KISS with it's 
native firmware. However you could replace the '1278's firmware with a 
generic TAPR 1.1.9 eprom that DOES supports KISS mode.)

The TNC version/firmware version is much more critical if you want to 
run a TNC as a standalone digipeater with no computer involved.    The 
only TNCs that are APRS-savvy by themselves for a full WIDEn-N type 
digipeater are:
o     Kantronics KPC3+ Ver 8.3 or higher.
o     TNC2 clone such as an MFJ127x with the UI-digi firmware 
replacement eprom.
o     TNC-X with it's optional digipeater daughterboard. 

Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
Home Page:          http://wa8lmf.com

"APRS 101"  Explanation of APRS Path Selection & Digipeating

Updated APRS Symbol Chart

New/Updated "Rev G" APRS     http://webs.lanset.com/wa8lmf/aprs
Symbols Set for UI-View,
UIpoint and APRSplus:

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