SB PROP @ ARL $ARLP016
ARLP016 Propagation de K7RA
ZCZC AP16
QST de W1AW
Propagation Forecast Bulletin 16 ARLP016
From Tad Cook, K7RA
Seattle, WA April 19, 2024
To all radio amateurs
SB PROP ARL ARLP016
ARLP016 Propagation de K7RA
Solar activity increased dramatically this reporting week (April
11-17), and thirteen new sunspot groups emerged. One appeared on
April 11, two more on April 13, three more on April 14, another two
on April 15, one more on April 16 and another two on April 17. On
April 18 an additional two sunspot groups emerged, and the daily
sunspot number increased to 247.
The daily sunspot number was 199 on April 17, the highest value
since July 12, 2023 when it was 219. On April 18, when the sunspot
number was 247, it was the highest sunspot number since July 6, 2014
when it was 256. That was back
...
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Пятница, 13.06.2025, 04:29
