Alan, Stefan & All: The LF T/A
dx event did coincide with or just after a C-class X-ray flux event of
moderate duration (30 minutes or so). It was a lower level C-class
event in the C2 or C3 range. Perhaps the combination of the X-ray flux
event and geomagnetic state are involved in the propagation
enhancement.
Also interesting that the resulting
T/A dx event was farther to the south in the U.S. Perhaps some seasonal
cyclic factor is involved as well. I was surprised that neither
WG2XJM, WG2XKA, W1VD, or W1TAG reported any T/A in that time period,
although VD and TAG may not have been on the air at the time. To the
west I have not had any captures from WH2XCR in the last week or so,
although other stations farther south of my location have captured XCR
recently and XJM has done so with his large RX antenna arrays. If
there is a seasonal-latitude probability factor in addition to the
X-ray flux and geomagnetic states, then I would expect better chances
of T/A events in the coming months of Febuary and March of this year
for my inland location.
73, Mike wa3tts
