No signal during the "normal" segment this afternoon. Saw a trace for a second or two. Perhaps the Event 92 (a C9.7 flare) burned off the F2 layer
The "satellite reception" theory is out. But according to some external help (thanks to xfielder) reception via 2 F2 hops could be a possibility here in the late afternoon.
Look! A treat later tonight, discovered just by chance. Old Faithful did not let me down.