Hi Mike, Yes, I think you are right about the "Luxemburg effect" at the top of our band, being the main source of the noise that disappears at dawn. I have always assumed that it is modulation of DBF
The signal was visible from about 22.00 last night (010205) until 06.00 this morning when it died out. I saw no clear "Dawn effect" on the QRN in these images, but the QRN is low throughout, which mi