Last evening saw VK3QN, a 6x6 14MHz array fixed on long path to Europe, suddenly appear at 01:30UT. Only 2E0PYB and G4ZFQ also heard this beacon at about the same time. Interestingly, no other station except for VK3MO was heard all night here.
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| VK3QN, 14MHz WSPR received at MW1CFN, 15-16/02/2021. Long horizontal line is non-reception period. |
VK3QN transmits every 10 minutes, continuously. I checked that there was no downtime yesterday, and there was not.
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| VK3QN, fixed beam long path (130 degrees). Image (C) VK3MO, with permission. |
So the onset of the signal at 01:30UT here is real. By 04UT, the signal vanished again until about 08:30UT, which is longpath time again.
I plotted the spots before checking the magnetometry. From past, long experience, we would expect this type of thing to happen in the time when the geomagnetic field is recovering from a fairly significant disturbance. Looking at the magnetmotery, then, we can see that this is a correct prediction in this overnight case:
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