[Xastir] KAM not transmitting and solution

[Stefano Sinagra]

Hi,
just leaving a quick note on using the Kantronics KAM as a "serial tnc", in
case anyone else bumps in the same problem.

Xastir 2.0 as provided by the Ubuntu 11.10 won't work properly, at least
with my 6.1 firmware.

My tnc refused to go on tx and a couple of minor fixes in the
tnc-startup.kam script made no difference (comment "txu on" and change
"HEADERLN OFF" into "HEADERL OFF", as both commands are wrong).

At transmission attempts the tnc would reply:
     $
EH?

This post explained the mechanism and pointed me to the right source file:
http://lists.xastir.org/pipermail/xastir/2009-October/016611.html

Have a look at line 8667 in interface.c ...and simply do as the source
says, commenting the line output_net...

               /* clear this for a TNC */
                //output_net[0] = '\0';

Possibly the Kenwood D700 fix messed up for the KAM.

73
Stefano IZ0MJE