SB PROP @ ARL $ARLP012
ARLP012 Propagation de K7RA
ZCZC AP12
QST de W1AW
Propagation Forecast Bulletin 12 ARLP012
From Tad Cook, K7RA
Seattle, WA March 22, 2024
To all radio amateurs
SB PROP ARL ARLP012
ARLP012 Propagation de K7RA
Over March 14-20, new sunspot groups emerged every day except March
19. March 18 had two, and each of the other days saw one new sunspot
group.
It is now Spring in the Northern Hemisphere which is favorable to HF
conditions, and solar and geomagnetic numbers both show improvement.
Average daily sunspot numbers rose from 82.3 to 94.3, and average
daily solar flux jumped from 130.4 to 153.3.
Geomagnetic indicators were very quiet, with the average daily
planetary A index dropping from 8.9 to 5.9, and middle latitude
numbers from 7 to 5.
Here is the outlook for the next month.
Predict
...
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