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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D">Montana: has NMEA hidden in the USB connector with
</span><a href="https://buy.garmin.com/shop/shop.do?pID=26668">https://buy.garmin.com/shop/shop.do?pID=26668</a>, or use
<a href="https://buy.garmin.com/shop/shop.do?pID=89575">https://buy.garmin.com/shop/shop.do?pID=89575</a> if you want to attach it somewhere. I have this on a motorcycle but haven’t run the wires to my TH-D7A yet.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Oregon: has NMEA hidden in the USB connector with <a href="https://buy.garmin.com/shop/shop.do?pID=26668">
https://buy.garmin.com/shop/shop.do?pID=26668</a> or <a href="https://buy.garmin.com/shop/shop.do?pID=1169">
https://buy.garmin.com/shop/shop.do?pID=1169</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">GPSMap62: has NMEA hidden in the USB connector with <a href="https://buy.garmin.com/shop/shop.do?pID=26668">
https://buy.garmin.com/shop/shop.do?pID=26668</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">GPSMap78: has a big round NMEA serial port, here’s the pigtail
<a href="https://buy.garmin.com/shop/shop.do?pID=519">https://buy.garmin.com/shop/shop.do?pID=519</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">All of the above units will receive NMEA waypoints and plot them on the map, and there are probably a few more.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-KD0LIX<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D"><o:p> </o:p></span></p>
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color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext"> aprssig-bounces@tapr.org [mailto:aprssig-bounces@tapr.org]
<b>On Behalf Of </b>Stephen H. Smith<br>
<b>Sent:</b> Sunday, August 28, 2011 8:43 PM<br>
<b>To:</b> russo@bogodyn.org; TAPR APRS Mailing List<br>
<b>Subject:</b> Re: [aprssig] advice on purchesing GPS for use with D-710<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">On 8/28/2011 4:52 PM, Tom Russo wrote: <o:p></o:p></p>
<p class="MsoNormal">There is no mention of a classic RS-232 serial port (required to connect to a Kenwood), nor any mention of FMI support (that allows the USB interface to "morph" into a serial port when a special cable is attached).
<o:p></o:p></p>
<pre><o:p> </o:p></pre>
<pre>FMI and "morph to serial" are separate things.<o:p></o:p></pre>
<p class="MsoNormal"><br>
The FMI interface IS serial, but with a screwball proprietary binary data format rather than vanilla NMEA ASCII.
<br>
<br>
<br>
<o:p></o:p></p>
<pre><o:p> </o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Several of the handheld usb-only Garmin GPS units will indeed "morph to serial <o:p></o:p></pre>
<pre>NMEA" with just the right cable, even though they don't talk FMI. If you look <o:p></o:p></pre>
<pre>at the Montana's spec says its interface is "USB and NEMA 0183 compatible," <o:p></o:p></pre>
<p class="MsoNormal"><br>
One can have NMEA-0183-format ASCII data over USB rather than serial -- many USB faceless hockeypuck GPSs do exactly this . This is what I assumed they meant in the Montana description.
<br>
<br>
<br>
<br>
<o:p></o:p></p>
<pre><o:p> </o:p></pre>
<pre>and on its "accessories" page there is a USB "Serial Data/Power" cable<o:p></o:p></pre>
<pre><a href="https://buy.garmin.com/shop/shop.do?pID=26668">https://buy.garmin.com/shop/shop.do?pID=26668</a><o:p></o:p></pre>
<pre>with bare wires to access the serial data. This cable is compatible with<o:p></o:p></pre>
<pre>several of the devices other than the Montana, including the Colorado, Oregon, <o:p></o:p></pre>
<pre>and GPSMAP 62 series. <o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>I believe that the way these devices work (Scott Miller can correct me here <o:p></o:p></pre>
<pre>if I'm mistaken) is that they detect a certain resistance in the cable between <o:p></o:p></pre>
<pre>certain pins, and switch from USB to plain RS232 serial protocol on the data <o:p></o:p></pre>
<pre>pins. <o:p></o:p></pre>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
This is how the USB-to-FMI-serial interface morphing works also. It looks as through the complexity of the Garmin USB interfaces has just doubled, with the magic USB-data-line pullup cable on some devices waking up FMI while the pullup wakes up generic
NMEA serial on others. <o:p></o:p></p>
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<p class="MsoNormal"><br>
--<br>
<br>
Stephen H. Smith wa8lmf (at) aol.com <br>
=== Now relocated from Pasadena, CA back to 8-land (East Lansing, MI) ===<br>
Skype: WA8LMF<br>
Home Page: <a href="http://wa8lmf.net">http://wa8lmf.net</a><br>
<br>
===== Vista & Win7 Install Issues for UI-View and Precision Mapping =====<br>
<a href="http://wa8lmf.net/aprs/UIview_Notes.htm#VistaWin7">http://wa8lmf.net/aprs/UIview_Notes.htm#VistaWin7</a><br>
<br>
*** HF APRS over PSK63 ***<br>
<a href="http://wa8lmf.net/APRS_PSK63/index.htm">http://wa8lmf.net/APRS_PSK63/index.htm</a><br>
<br>
"APRS 101" Explanation of APRS Path Selection & Digipeating <br>
<a href="http://wa8lmf.net/DigiPaths">http://wa8lmf.net/DigiPaths</a> <br>
<br>
<br>
<br>
<br>
<o:p></o:p></p>
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