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Sat Mar 21 21:18:14 UTC 2009


directly
exploit the Fleet Management Interface are:&nbsp;&nbsp; <br>
<br>
o&nbsp;&nbsp;&nbsp;&nbsp; The Argent Data &quot;G-Trans&quot; cable for =
the
Kenwood APRS radios.&nbsp; This 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 &quot;goiter&quot; 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>
<br>
The Kenwood APRS radios are capable of translating incoming posits =
received
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>
<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>
<br>
&nbsp;&nbsp;&nbsp;&nbsp; <a
href=3D"https://www.argentdata.com/catalog/product_info.php?cPath=3D28&am=
p;products_id=3D113">&lt;https://www.argentdata.com/catalog/product_info.=
php?cPath=3D28&amp;products_id=3D113&gt;</a><br>
<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>
<br>
&nbsp;&nbsp;&nbsp; <a
href=3D"https://www.argentdata.com/catalog/product_info.php?cPath=3D28&am=
p;products_id=3D114">&lt;https://www.argentdata.com/catalog/product_info.=
php?cPath=3D28&amp;products_id=3D114&gt;</a><br>
<br>
<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>
<br>
&nbsp; <br>
<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. <o:p></o:p></span></font></p>

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<br>
<br>
--<br>
<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
href=3D"http://wa8lmf.net">http://wa8lmf.net</a><br>
<br>
JavAPRS Filter Port 14580 Guide <br>
&nbsp; <a =
href=3D"http://wa8lmf.net/aprs/JAVaprsFilters.htm">http://wa8lmf.net/aprs=
/JAVaprsFilters.htm</a><br>
<br>
&quot;APRS 101&quot;&nbsp; Explanation of APRS Path Selection &amp; =
Digipeating
<br>
&nbsp; <a =
href=3D"http://wa8lmf.net/DigiPaths">http://wa8lmf.net/DigiPaths</a> =
<br>
<br>
Updated &quot;Rev H&quot;
APRS&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
<a
href=3D"http://wa8lmf.net/aprs">http://wa8lmf.net/aprs</a><br>
Symbols Set for UI-View, <br>
UIpoint and APRSplus:<br>
<br>
<o:p></o:p></span></font></p>

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