<!DOCTYPE html><html><head><title></title><style type="text/css">p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div style="font-family:Arial;">Hello Jim,<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;">If you look at the Metis Manual page number 8, it has the DB-9 connection details.<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;">Pin 6 - Dash – connected to 3.3v via 10k pullup<br></div><div style="font-family:Arial;">Pin 7 - Dot - connected to 3.3v via 10k pullup<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;">This is how I use it for CW as well (my main mode of operation).<br></div><div style="font-family:Arial;"><br></div><div style="font-family:Arial;">73<br></div><div style="font-family:Arial;">Ram VU2JXN<br></div><div style="font-family:Arial;"><br></div><div>On Fri, Oct 27, 2023, at 6:45 AM, Jim Sanford wrote:<br></div><blockquote type="cite" id="qt" style=""><div>***** High Performance Software Defined Radio Discussion List *****<br></div><div><br></div><div><br></div><p>All:<br></p><p>Some time ago, I read about using a serial port to key the TAPR
      HPSDR connected only by ethernet to the computer.  I can't find
      it, and struck out on Google and Duck Duck Go.<br></p><p>Does anyone remember or have any info on this?<br></p><p>Also, I <i>think</i> read that it would not work on Atlas bus
      based systems, but that was long ago, and wonder if that is still
      true. I'm willing to try and find out, if I can determine what
      pins to connect to my WinKeyer.<br></p><p>Thanks & 73,<br></p><p>Jim<br></p><p><a class="qt-moz-txt-link-abbreviated" href="mailto:wb4gcs@amsat.org">wb4gcs@amsat.org</a><br></p><p><br></p><div id="qt-DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><div><br></div><table style="border-top-color:rgb(211, 212, 222);border-top-style:solid;border-top-width:1px;"><tbody><tr><td style="width:55px;padding-top:13px;"><a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank"><img src="https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif" alt="" style="width:46px;height:29px;" width="46" height="29"></a><br></td><td style="width:470px;padding-top:12px;color:rgb(65, 66, 78);font-size:13px;font-family:Arial, Helvetica, sans-serif;line-height:18px;">Virus-free.<a href="https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient" target="_blank" style="color:rgb(68, 83, 234);">www.avast.com</a><br></td></tr></tbody></table><div><a href="#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1"></a><br></div></div><div>_______________________________________________<br></div><div>HPSDR Discussion List<br></div><div>To post msg: <a href="mailto:hpsdr@openhpsdr.org">hpsdr@openhpsdr.org</a><br></div><div>Subscription help: <a href="http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org">http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org</a><br></div><div>HPSDR web page: <a href="http://openhpsdr.org">http://openhpsdr.org</a><br></div><div>Archives: <a href="http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/">http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/</a><br></div><div><br></div></blockquote><div style="font-family:Arial;"><br></div><div id="sig20667997"><div class="signature">--<br></div><div class="signature">Ramakrishnan<br></div></div><div style="font-family:Arial;"><br></div></body></html>