<div dir="ltr">Hi Simon,<div><br></div><div>Have you tried running PiCW without the WSPR board connected? </div><div><br></div><div>73,</div><div>HA7DCD</div><div>Zoltan</div><div><br><div class="gmail_extra"><div class="gmail_quote">On Fri, Apr 13, 2018 at 12:59 AM, Simon Quellen Field <span dir="ltr"><<a href="mailto:sfield@scitoys.com" target="_blank">sfield@scitoys.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-family:trebuchet ms,sans-serif;font-size:small">Some more information.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I built the PiCW program, and ran it.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">It sent the first few characters of the message, and then the output stopped, even as the program kept slowly printing out the rest of the message.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I ran the test many times.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">Sometimes there was no output at all.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">Other times it would get as far as 10 or 12 characters before going silent.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:small">To remove the antenna and ground from consideration, I replaced them with a 50 ohm dummy load between the antenna and ground connectors on the board.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I could hear the characters using a nearby receiver, but they still went silent, usually after single digit numbers of characters had been sent.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:small">The two programs (WsprryPi and PiCW) share many components, both in software, and (of course) in hardware.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">There could be a problem with the board.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">There could be a change in the operating system that makes the programs no longer work properly.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I have tried the board on several different Pi boards, both 3B and 3B+, with the same results.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I have tried the programs with a network connection and without.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I made sure the computer was not trying to make sounds (the sound software uses the same hardware as the WSPR board does).</div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:small">I am beginning to think there is a problem with the WSPR board.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small">Before I buy another one to test that theory, I'd like to hear suggestions from this SIG.</div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:small"><br></div></div><div class="gmail_extra"><span class=""><br clear="all"><div><div class="m_5251003516641811607gmail_signature" data-smartmail="gmail_signature"><div>-----</div>Get a free science project every week! "<a href="http://scitoys.com/newsletter.html" target="_blank">http://scitoys.com/<wbr>newsletter.html</a>"<br><br></div></div>
<br></span><div><div class="h5"><div class="gmail_quote">On Thu, Apr 12, 2018 at 11:05 AM, Simon Quellen Field <span dir="ltr"><<a href="mailto:sfield@scitoys.com" target="_blank">sfield@scitoys.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I am running WSJT-X on a receiver a couple feet from the RPi, and I can see (and hear) the beautiful tone<br>from the radio and in the waterfall, but the tone stops after only a few seconds, despite the program thinking<br>that it is still transmitting.<br><br>I first tried it on my newest Pi 3 B+, and thought that maybe it was the faster processor confusing things,<br>but when I went to an older Pi 3 B, I got the same results. The duration of the tone is variable, sometimes<br>only a second or two, and sometimes as long as 10 or 15 seconds. But never long enough to send the whole<br>message.<br><br>This is on a new SD card, with today's Raspian Stretch built from NOOBS, following the instructions:<br><br>sudo apt-get update<br>sudo apt-get dist-upgrade<br>sudo apt-get install git<br>git clone <a href="https://github.com/JamesP6000/WsprryPi.git" target="_blank">https://github.com/JamesP6000/<wbr>WsprryPi.git</a><br>cd WsprryPi<br>make<br><br><br>My command line was:<br>sudo ./wspr -r -o -s AB6NY CM87xe 20 20m<br><br><br>Does this sound like a problem with the board?<div><div style="font-family:"trebuchet ms",sans-serif;font-size:small">Or is there a known problem with the latest software?</div><div style="font-family:"trebuchet ms",sans-serif;font-size:small"><br></div><div style="font-family:"trebuchet ms",sans-serif;font-size:small">I've read through the source code, and there isn't anywhere that aborts a transmission early.</div><div style="font-family:"trebuchet ms",sans-serif;font-size:small">The program thinks it is still transmitting for the whole 110.686 second transmit window.</div><div style="font-family:"trebuchet ms",sans-serif;font-size:small">The shortest transmission printout on the screen is 110.669 seconds, and the longest was</div><div style="font-family:"trebuchet ms",sans-serif;font-size:small">110.688 seconds. But the tone in the receiver only lasts 5 seconds on average.</div><br><div><div class="m_5251003516641811607m_-3722065905582880856gmail_signature" data-smartmail="gmail_signature"><div>-----</div>Get a free science project every week! "<a href="http://scitoys.com/newsletter.html" target="_blank">http://scitoys.com/newsletter<wbr>.html</a>"<br><br></div></div>
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