April 23, 2025

This Week in Amateur Radio

North America's Premiere Amateur Radio News Magazine

Via the ARRL: The K7RA Solar Update

Solar activity was up this week, with the average daily sunspot
number increasing from 133.7 to 139, and average daily solar flux
from 155.3 to 166.8.

Average daily planetary A index stayed the same at 7.3, and average
middle latitude A index went from 7.9 to 8.6.

Predicted solar flux doesn’t show any improvement, with peaks at 170
on June 23-25 and July 20-21.

The forecast shows solar flux at 168, 16…

Read more – via American Radio Relay League | Ham Radio Association and Resources http://www.arrl.org/news/view/the-k7ra-solar-update-781