After a nice family gathering yesterday afternoon, I decided to try some more WSPR listening with the RSP1a SDR, seeing as there was no apparent contest activity on 14MHz (yet!)
It was geomagnetically quiet, but a spectacular burst of strong signals came from the Netherlands station, PA3BTI (100mW) mid-evening, which seemed to coincide with the geomagnetic field restoring to full-quiet conditions from a small disturbance at very high latitudes; by the time we reach the Andenes station (69 degrees North), the disturbance is not really detectable.
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| Norwegian line magnetometer outputs. Image: Tromso Geophysical Laboratory. |
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| Wow! +14dB SNR/2500Hz from PA3BTI (14MHz) |
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A similar, but broader enhancement was seen from F1AGR:
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