[Xastir] TH-D72A with Internal GPS working with Xastir

[John Goerzen]

Hi everyone,

I've lately been trying to get Xastir working with my TH-D72 and its 
internal GPS.  Googling showed me a lot of discussions on the topic, and 
in particular, this one:

http://lists.xastir.org/pipermail/xastir/2011-July/020149.html

in which it was thought that the "D72 cannot stream NMEA sentences from 
the internal GPS in any mode tha talso allows Xastir to use the TNC."

I appear to have taken that as a challenge and figured out how to do it ;-)

I am not at all surprised at the above conclusion; Kenwood's 
documentation, though perhaps far more complete than their competitors, 
is still terribly sparse when it comes to the TNC functions of the D72A.

I have documented how I managed to get this working over here:

http://wiki.complete.org/THD72PCAPRS

It also explains what a lot of trial and error has shown to be the 
difference between the D72's APRS mode and its PACKET mode with respect 
to hooking up Xastir.

Hope it is helpful to someone.

I thank everyone that has contributed on this list for the background 
info, and in particular Kai Günter Brandt's D710 setup scripts which I 
was able to lightly modify for the D72A.  His info was at 
http://lists.xastir.org/pipermail/xastir/2011-July/020111.html in case 
anyone needs to find it.

-- John Goerzen
KR0L