Overnight geomagnetic field conditions were intially fairly quiet, with low-level 'ringing' up to about 18UT, whereupon the field became quiet until a minor disturbance occurred from just before 00UT, lasting until about 07UT. The plot below shows the situation at western Greenland (a suitable meridian for a UK/Barbados path):
The signal from 8P9HA (0.1W) at 14MHz WSPR responded nicely in step with field conditions at high latitudes, showing a vanishing of the signal at just after 19UT, and a reapparance at 00:40UT, peaking strongly then at 02:16UT, and finally dying away after 03:16UT as the field began to flutter back to a quieter level.
There is a break of about an hour in reception from 03:18UT until 04:32UT, where a small deviation in the field at more southerly latitudes in Greenland comes into effect, which may be the cause of the loss of signal.
8P9HA 14MHz, 0.1W WSPR received signal at MW1CFN 2020 December 07-08. |
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