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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks, Doug. Yeah I found the rxboost and have played with it some. But in doing so I broke something else I now have to find and fix. I also had to discover you have to have COR active for tuning to work, too. Always something new to find.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>What is the function of the duplex=1 in simpleusb? Does it make the FOB operate full duplex for audio or some other function?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I did notice an anomaly that I was curious about. While testing with simpleusb-tune-menu, at times after making a change to the TX audio setting using option 3 or 4 it would transmit a tone at the new level for 5 seconds, and at other times it wouldn’t. Is there something I can do to make that happen every time and also to extend the transmit time so my station monitor has time to respond? The Flash option works fine but again, the Tx time is too short for the test equipment to settle.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cole<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>AA7RD<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> arm-allstar-bounces@hamvoip.org [mailto:arm-allstar-bounces@hamvoip.org] <b>On Behalf Of </b>Doug Crompton<br><b>Sent:</b> Tuesday, March 03, 2015 7:56 PM<br><b>To:</b> BeagleBone Black ARM Allstar<br><b>Subject:</b> Re: [arm-allstar] Receiver audio levels<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Tahoma","sans-serif";color:black'>Cole,<br><br> Typically you want about 100mv p-p or so max but you can turn off rxboost in simpleusb.conf - rxboost=0 <br><br>It defaults at 1 or on. That might get you in the ball park but it looks like you do need to drop the level down a bit also. I would suggest a 47 K in series with a 10K to ground on the FOB side for starters. Then take the 47K up if it is still too high. Experiment until you can get the level value reasonably close to mid scale (500). <br id=FontBreak></span><span style='font-family:"Calibri","sans-serif"'><br></span><b><span style='font-size:16.0pt;font-family:"Calibri","sans-serif"'>73 Doug<br>WA3DSP<br><a href="http://www.crompton.com/hamradio">http://www.crompton.com/hamradio</a></span></b><span style='font-size:16.0pt;font-family:"Calibri","sans-serif"'><br><br></span><span style='font-family:"Calibri","sans-serif"'><o:p></o:p></span></p><div><div class=MsoNormal align=center style='text-align:center'><span style='font-family:"Calibri","sans-serif"'><hr size=2 width="100%" align=center id=stopSpelling></span></div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-family:"Calibri","sans-serif"'>From: <a href="mailto:colecaz@gmail.com">colecaz@gmail.com</a><br>To: <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a><br>Date: Tue, 3 Mar 2015 16:12:45 -0700<br>Subject: [arm-allstar] Receiver audio levels<o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>I’m having trouble setting the receive audio input level to interface with a Motorola Radius radio.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>I’m using a USB FOB modified as shown on <a href="http://www.crompton.com/hamradio/usb_fob_modification/" target="_blank">http://www.crompton.com/hamradio/usb_fob_modification/</a> , and connecting to the audio output of the radio on the rear connector I am unable to set the proper level using simpleusb-tune-menu. Even going all the way to 0 isn’t enough. The peak to peak voltage out of the radio with 1kHz audio/3 kHz deviation is 1.2 volts. I have confirmed that it is truly sensing the audio by shutting the modulation off and seeing the tune indicator line go to about 500 Hz of noise.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>What audio level directly into the FOB, after the voltage divider shown in the mod, is correct for decent tuning range?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'> <o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>Cole Cunningham<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'>AA7RD<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-family:"Calibri","sans-serif"'><br>_______________________________________________ arm-allstar mailing list <a href="mailto:arm-allstar@hamvoip.org">arm-allstar@hamvoip.org</a> <a href="http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar">http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar</a> Visit the BBB web page - <a href="http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/">http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/</a><o:p></o:p></span></p></div></div></div></body></html>