A buddy of mine and I recently decided to do some testing with WSPR on 20M. It seems to be that the distance between our QTHs is enough for 30m to work during the evening, and we wanted to see what 20m would do.
So, the plan was to set up the computers and radios and let them run for 24 hours straight. After which, I’d grab the data from wsprnet.org and plot it out real nice.
Anyway, here’s the plots. The Y axis is SNR as reported by WSPR, and the X axis is Pacific Time. As another tidbit of info, Sunrise during the testing period happened at 6:49, and sunset happened at 17:55.
And here’s the Excel file: 20m_WSPR