Hi Roelof, You wrote :- Looking at my overnight SpecLab captures, there appeared to be a substantial difference in background noise. It was much stronger from 02:00 - 05:00 and from 06:00 - 06:30 UTC
Hi Roelof, Gary and others, On the top menu bar click "View/Windows" then "Spectrum Lab components" & you will get a block diagram, look for box with ? in it on a connection between L4 & L5 (next to