28 April 2018 A.R.I. DX Bulletin
No 1408
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SB PROP @ ARL $ARLP017
ARLP017 Propagation de K7RA
ZCZC AP17
QST de W1AW
Propagation Forecast Bulletin 17 ARLP017
From Tad Cook, K7RA
Seattle, WA April 27, 2018
To all radio amateurs
SB PROP ARL ARLP017
ARLP017 Propagation de K7RA
Solar activity increased over the past week, with average daily
sunspot numbers up from 5.4 to 20 and average daily solar flux
rallying from 69.9 to 73.4. The previous week saw four days with no
sunspots, and the recent week had sunspots on every day. New sunspot
groups emerged on April 19 and 21.
Predicted solar flux is 69 on April 27-29, 68 on April 30 through
May 3, 70 on May 4-16, 75 on May 17-29, 70 on May 30 through June
10.
Predicted planetary A index is 12 on April 27, 5 on April 28 through
May 5, then 10, 15, 12, 10 and 8 on May 6-10, 5 on May 11-16, then
42, 12 and 8 on May 17-19, 5 on May 20-22, then 8 and 12 on May
23-24, 5 on
...
Читать дальше »
|
SB PROP @ ARL $ARLP017
ARLP017 Propagation de K7RA
ZCZC AP17
QST de W1AW
Propagation Forecast Bulletin 17 ARLP017
From Tad Cook, K7RA
Seattle, WA April 27, 2018
To all radio amateurs
SB PROP ARL ARLP017
ARLP017 Propagation de K7RA
Solar activity increased over the past week, with average daily
sunspot numbers up from 5.4 to 20 and average daily solar flux
rallying from 69.9 to 73.4. The previous week saw four days with no
sunspots, and the recent week had sunspots on every day. New sunspot
groups emerged on April 19 and 21.
Predicted solar flux is 69 on April 27-29, 68 on April 30 through
May 3, 70 on May 4-16, 75 on May 17-29, 70 on May 30 through June
10.
Predicted planetary A index is 12 on April 27, 5 on April 28 through
May 5, then 10, 15, 12, 10 and 8 on May 6-10, 5 on May 11-16, then
42, 12 and 8 on May 17-19, 5 on May 20-22, then 8 and 12 on May
23-24, 5 on
...
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Суббота, 21.12.2024, 19:13
