<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>I've done the cos mod described on this page</div><div><br></div><div><a href="http://www.repeater-builder.com/motorola/maxtrac/maxtrac-interfacing.html#5-pin">http://www.repeater-builder.com/motorola/maxtrac/maxtrac-interfacing.html#5-pin</a></div><div><br></div><div>Simple to do and now all required signals are available on the mic jack. </div><div>Good luck. <br><br>Sent from my iPhone<div>Bob Prybyzerski</div><div>631-960-1051</div><div>W2YMM</div></div><div><br>On May 5, 2016, at 12:25 AM, Doug Crompton via arm-allstar <<a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<div dir="ltr"><font style="" face="Tahoma,sans-serif" color="#000000">Jeff,<br><br> The first mod to use just the mic would not work with simpleusb you also need COS. I think the link I gave you gives info on how to get COS inside and I presume PTT, audio in/out could come from the mic connector but if you are inside you could pick thos up in there also and leave the mic connector open. I don't like the idea of disconnecting the speaker. You really want to pick up audio before the volume control though so you can use the volume and monitor the channel without effecting the audio level to Allstar. This would have to be done inside. Maybe on the high side of the volume pot.<br><br>I really don't know anything about this radio and I never had one. Does it has built-in programmable PL?<br><br>Hopefully someone else who may have done this can pipe in.<br id="FontBreak"></font><br><b><font style="font-size:16pt;" size="4">73 Doug</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4">WA3DSP</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4"><a href="http://www.crompton.com/hamradio">http://www.crompton.com/hamradio</a></font></b><font style="font-size:16pt;" size="4"><br></font><br><br><div><hr id="stopSpelling">Date: Wed, 4 May 2016 22:34:02 -0500<br>To: <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a><br>Subject: Re: [arm-allstar] Radio interface question<br>From: <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a><br>CC: <a href="mailto:kd0qcn@aecimo.org">kd0qcn@aecimo.org</a><br><br><div>Hey Doug and all,</div><div id="ecxAppleMailSignature"><br></div><div id="ecxAppleMailSignature">Here is one of the sources that I found that didn't require any mic plug modifications. Is there something with this setup that I should be concerned with and should stay away from? If so, I am willing to do the mods to the radio, I was just trying to avoid it.</div><div id="ecxAppleMailSignature"><br><a href="http://www.allstarnode.com/viewtopic.php?f=2&t=51" target="_blank">http://www.allstarnode.com/viewtopic.php?f=2&t=51</a></div><div id="ecxAppleMailSignature"><br></div><div id="ecxAppleMailSignature">Thanks again,</div><div id="ecxAppleMailSignature"><br></div><div id="ecxAppleMailSignature">Jeff Carlyle KD0QCN <br><br></div><div>On May 4, 2016, at 9:54 PM, Doug Crompton via arm-allstar <<a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a>> wrote:<br><br></div><blockquote><div>
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<div dir="ltr"><font style="" face="Tahoma,sans-serif" color="#000000">Jeff,<br><br> This link might help it talks about the 5 pin connector. It looks like you will need to make some mods though.<br><br><a href="http://www.nw7rg.org/downloads/maxtrac/Interfacing%20a%20MaxTrac%20or%20Radius%20M100%20%20M214%20%20M216%20series%20mobile%20to%20a%20repeater%20controller.pdf" target="_blank">http://www.nw7rg.org/downloads/maxtrac/Interfacing%20a%20MaxTrac%20or%20Radius%20M100%20%20M214%20%20M216%20series%20mobile%20to%20a%20repeater%20controller.pdf</a><br><br id="ecxFontBreak"></font><br><b><font style="font-size:16pt;" size="4">73 Doug</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4">WA3DSP</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4"><a href="http://www.crompton.com/hamradio" target="_blank">http://www.crompton.com/hamradio</a></font></b><font style="font-size:16pt;" size="4"><br></font><br><br><div>> Date: Wed, 4 May 2016 20:13:05 -0500<br>> To: <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a><br>> Subject: [arm-allstar] Radio interface question<br>> From: <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a><br>> CC: <a href="mailto:jeffcarlyle@windstream.net">jeffcarlyle@windstream.net</a><br>> <br>> Hello Group,<br>> <br>> I have an older Motorola mobile radio that I would like to setup as a simplex node. The radio is an M100 so it has the 5 pin connector on the back and not the 16. My question is, can this be interfaced to a URI strictly through the mic jack as is, without bringing the COS to the jack? Information on this is sparse at best. I did see where someone said it could be done, but that was the only reference I have seen about it. Is anyone else running a setup like this and does it work OK?<br>> <br>> Thanks in advance for any replies.<br>> <br>> Jeff KD0QCN <br>> <br>> <br>> _______________________________________________<br>> <br>> arm-allstar mailing list<br>> <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a><br>> <a href="http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar" target="_blank">http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar</a><br>> <br>> Visit the BBB and RPi2 web page - <a href="http://hamvoip.org" target="_blank">http://hamvoip.org</a><br>> <br></div> </div>
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</div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span></span><br><span>arm-allstar mailing list</span><br><span><a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a></span><br><span><a href="http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar">http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar</a></span><br><span></span><br><span>Visit the BBB and RPi2 web page - <a href="http://hamvoip.org">http://hamvoip.org</a></span></div></blockquote></body></html>