April 18, 2025

This Week in Amateur Radio

North America's Premiere Amateur Radio News Magazine

Via the ARRL: The K7RA Solar Update

With the big increase in sunspot numbers and solar flux reported in
last week’s Propagation Forecast Bulletin ARLP013, I hoped the trend
would continue, but numbers this week were lower.

Five new sunspot groups emerged, one each day from March 30 through
April 3.

Average daily sunspot numbers went from 147 to 60, and average daily
solar flux declined from 191.9 to 136.9.

Geomagnetic numbers were much …

Read more – via American Radio Relay League | Ham Radio Association and Resources http://www.arrl.org/news/view/the-k7ra-solar-update-824