Crashing when not launched manually

[Jibeji]

Hi,
I would like WsprrPi to be launched at boot.

I tried to add the following sequence in /etc/rc.local, it crashes
/usr/bin/sudo /usr/local/bin/wspr --repeat --offset --self-calibration MyCall MyLoc 20 30m 0 & > /dev/null 2>&1

So I tried to set this in the crontab evry 15 min, it crashes.
usr/bin/sudo /usr/local/bin/wspr --offset --self-calibration MyCall MyLoc 20 30m 0

By crashing I mean that not only there is no transmission, but it also make the WiFi fail.

Launching both command manually work fine.

[dl9sec]

Hi,
i use the method for lauch at boot from the presentation here:
https://www.ham-yota.com/wp-content/uploads/2016/06/WSPR_YOTA2016.pdf
Installing this systemd sevice as described works fine for me:
https://github.com/oe3cts/WSPR-HAT/blob/master/Documents/wsprrypi.service

Regards, Thorsten
(BTW: I use the TX blinking LED modification and have a visual feedback if wspr starts and transmitts)

[Jibeji]

Hello,
Thanks a lot for this very useful information.
73