[hfsig] WsprryPi sends tone only for a few seconds

Orrin Winton orrin.winton at gmail.com
Thu Apr 12 23:29:02 EDT 2018

I'm not currently running wsprrypi, but when i did, i never had a problem
with it.

PiCW i could never get to work at all.

Orrin wn1z CN90

On Thu, Apr 12, 2018, 16:23 Simon Quellen Field <sfield at scitoys.com> wrote:

> Some more information.
> I built the PiCW program, and ran it.
> 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.
> I ran the test many times.
> Sometimes there was no output at all.
> Other times it would get as far as 10 or 12 characters before going silent.
> 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.
> I could hear the characters using a nearby receiver, but they still went
> silent, usually after single digit numbers of characters had been sent.
> The two programs (WsprryPi and PiCW) share many components, both in
> software, and (of course) in hardware.
> There could be a problem with the board.
> There could be a change in the operating system that makes the programs no
> longer work properly.
> I have tried the board on several different Pi boards, both 3B and 3B+,
> with the same results.
> I have tried the programs with a network connection and without.
> I made sure the computer was not trying to make sounds (the sound software
> uses the same hardware as the WSPR board does).
> I am beginning to think there is a problem with the WSPR board.
> Before I buy another one to test that theory, I'd like to hear suggestions
> from this SIG.
> -----
> Get a free science project every week! "http://scitoys.com/newsletter.html
> "
> On Thu, Apr 12, 2018 at 11:05 AM, Simon Quellen Field <sfield at scitoys.com>
> wrote:
>> I am running WSJT-X on a receiver a couple feet from the RPi, and I can
>> see (and hear) the beautiful tone
>> from the radio and in the waterfall, but the tone stops after only a few
>> seconds, despite the program thinking
>> that it is still transmitting.
>> I first tried it on my newest Pi 3 B+, and thought that maybe it was the
>> faster processor confusing things,
>> but when I went to an older Pi 3 B, I got the same results. The duration
>> of the tone is variable, sometimes
>> only a second or two, and sometimes as long as 10 or 15 seconds. But
>> never long enough to send the whole
>> message.
>> This is on a new SD card, with today's Raspian Stretch built from NOOBS,
>> following the instructions:
>> sudo apt-get update
>> sudo apt-get dist-upgrade
>> sudo apt-get install git
>> git clone https://github.com/JamesP6000/WsprryPi.git
>> cd WsprryPi
>> make
>> My command line was:
>> sudo ./wspr -r -o -s AB6NY CM87xe 20 20m
>> Does this sound like a problem with the board?
>> ​Or is there a known problem with the latest software?
>> I've read through the source code, and there isn't anywhere that aborts a
>> transmission early.
>> The program thinks it is still transmitting for the whole 110.686 second
>> transmit window.​
>> The shortest transmission printout on the screen is 110.669 seconds, and
>> the longest was
>> 110.688 seconds. But the tone in the receiver only lasts 5 seconds on
>> average.
>> -----
>> Get a free science project every week! "
>> http://scitoys.com/newsletter.html"
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