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Sat Mar 21 21:18:14 UTC 2009

o&nbsp;&nbsp;&nbsp;&nbsp; The Argent Data "G-Trans" cable for the Kenwood APRS radios.&nbsp;
device has a mini-USB plug on one end (to go into the Garmin), and a
2.5mm stereo miniplug on the other (to go into the Kenwoods' dedicated
GPS serial port). &nbsp; This cable, with an embedded microcontroller in a
"goiter" in the middle of the cable,&nbsp; translates Garmin FMI live
position data from the Nuvi to serial
standard 4800 baud NMEA ASCII for use by the Kenwoods and other
NMEA-using devices.&nbsp;&nbsp; <br>
The Kenwood APRS radios are capable of translating incoming posits
from other station into NMEA $GPWPL waypoint strings which can be sent
back to many display GPS devices that accept and plot waypoint data.
This data is fed OUT of the dedicated GPS port on the Kenwood radios,&nbsp;
BACK to the GPS on the other half of the serial cable bringing GPS data
TO the radio.&nbsp; <br>
If this feaure is enabled in the Kenwood radio, the G-Trans cable will
convert $GPWPL waypoints back to Garmin FMI
format for display on the Nuvi 350's maps.&nbsp; Details on this cable for
the Kenwood radios here:<br>
<a class="moz-txt-link-rfc2396E" href="https://www.argentdata.com/catalog/product_info.php?cPath=28&products_id=113">&lt;https://www.argentdata.com/catalog/product_info.php?cPath=28&amp;products_id=113&gt;</a><br>
The G-Trans cable is also available with a standard DB9 serial plug on
the end rather than the 2.5mm stereo miniplug used by Kenwoods.&nbsp; (The
GPS data OUT should be usable by ANY device (tracker, laptop, etc) that
accepts normal RS-232 4800 baud NMEA 0183 GPS data.&nbsp;&nbsp; The waypoint data
IN would depend on the capabilities of the attached device.)&nbsp; Details
on the alternate G-Trans cable here:<br>
<a class="moz-txt-link-rfc2396E" href="https://www.argentdata.com/catalog/product_info.php?cPath=28&products_id=114">&lt;https://www.argentdata.com/catalog/product_info.php?cPath=28&amp;products_id=114&gt;</a><br>
o&nbsp;&nbsp;&nbsp;&nbsp; The Argent Data Tracker 2 (tracker &amp; send/receive TNC) which
can use the Nuvi 350 as a GPS source for the tracker, and the screen as
an APRS mapping display and messaging terminal.&nbsp;&nbsp;&nbsp; [The program code
for dealing with the FMI protocols are built into the T2's firmware.]&nbsp;
The T2 has to be connected to the Garmin with the DB9 version of the
G-Trans cable. <br>
&nbsp; <br>
Note that these are open-sourced devices, so the program code for
dealing with FMI is visible and can be used as a starting point for
developing similar capabilities in other software. <br>
<hr size="2" width="100%"><br>
Stephen H. Smith&nbsp;&nbsp;&nbsp; wa8lmf (at) aol.com <br>
EchoLink Node:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WA8LMF&nbsp; or 14400&nbsp;&nbsp;&nbsp; [Think bottom of the 2M band]<br>
Skype:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WA8LMF<br>
Home Page:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a class="moz-txt-link-freetext" href="http://wa8lmf.net">http://wa8lmf.net</a><br>
JavAPRS Filter Port 14580 Guide <br>
&nbsp; <a class="moz-txt-link-freetext" href="http://wa8lmf.net/aprs/JAVaprsFilters.htm">http://wa8lmf.net/aprs/JAVaprsFilters.htm</a><br>
"APRS 101"&nbsp; Explanation of APRS Path Selection &amp; Digipeating <br>
&nbsp; <a class="moz-txt-link-freetext" href="http://wa8lmf.net/DigiPaths">http://wa8lmf.net/DigiPaths</a> <br>
Updated "Rev H" APRS&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a class="moz-txt-link-freetext" href="http://wa8lmf.net/aprs">http://wa8lmf.net/aprs</a><br>
Symbols Set for UI-View, <br>
UIpoint and APRSplus:<br>


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