Tad Cook, K7RA, of Seattle, Washington, reports for this week’s ARRL Propagation Bulletin:
Average daily sunspot numbers rose this week from 70.3 to 78.9, yet somehow, the solar flux averages stayed the same as 129.9 and 129.9.
Average daily planetary A index went from 13.7 to 13.4, but the middle latitude numbers changed from 14.3 to 9.6.
Predicted solar flux is 135 on November 10 – 11; 140 on November 12 – 13; 130, 125, 120, and 114 on November 14 – 17; 116 on November 18 – 19; 114 on November 20 – 21; 112 and 114 on November 22 – 23; 116 on November 24 – 26; 118 on November 27 – 28; 120, 122, 125, 124, and 122 on November 29 through December 3; 130 on December 4 – 5; 125 and 120 on December 6 – 7; 115 on December 8 – 9, and 120, 118, and 116 on December 10 – 12.
Predicted planetary A index is 10, 10, and 8 on November 10 – 12; 5 on November 13 – 17; 25, 15, and 8 on November 18 – 20; 5 on November 21 – 22; 8, 16, 26, 15, and 12 on November 23 – 27; 8, 15, 26, 16, and 12 on November 28 through December 2; 8 on December 3 – 4; 12 on December 5 – 8; 8 on December 9, and 5 on December 10 – 14.
Angel Santana, WP3GW, wrote:
“Ten meters is getting so [much] better that today, on November 9 at 1319 UTC, [I] had a contact with 3B9FR on 28.522 MHz up 5. He even answered me in Spanish.”
3B9FR was operating from Rodrigues Island in the Indian Ocean, which is more than 9,000 miles from Puerto Rico.
More on Rodrigues:
Solar flares and radio blackouts:
Because
ARRL is closed this Friday for Veterans Day, the regular Friday bulletin will
not come out until Monday, November 14.
Sunspot numbers for
November 3 through 9, 2022, were 65, 81, 82, 78, 80, 85, and 81, with a mean of
78.8. The 10.7-centimeter flux was 125.3, 117.7, 131.1, 130.8, 134.6, 132.3,
and 137.6, with a mean of 129.9. Estimated planetary A indices were 26, 16, 10,
4, 19, 12, and 7, with a mean of 13.4. Middle latitude A index was 16, 12, 8,
3, 12, 8, and 8, with a mean of 9.6.