SB PROP @ ARL $ARLP014
ARLP014 Propagation de K7RA

ZCZC AP14
QST de W1AW 
Propagation Forecast Bulletin 14 ARLP014
From Tad Cook, K7RA
Seattle, WA April 4, 2020
To all radio amateurs 

SB PROP ARL ARLP014
ARLP014 Propagation de K7RA

A new sunspot appeared on the last day in March and the first days
of April, with daily sunspot numbers of 12, 13 and 12. Total
sunspot area increased on each day from 10 to 20 to 30 millionths of
a solar hemisphere.
 
Fortunately this was a cycle 25 spot, according to the magnetic
signature.
 
Prior to this no sunspots were seen since earlier in March, when
daily sunspot numbers were 13 and 12 on March 8 and 9.
 
Average daily solar flux this week (March 26 through April 1)
declined from 71.1 to 69.4. Average daily geomagnetic indicators
were identical to the previous week, with planeta
		
		... 
		
			Читать дальше »