Amateur Radio Topics: Solar Activity by the Numbers

Learn how the sun influences HF radio communication in this informative class. We'll cover the basics of HF propagation, the ionosphere, solar activity, and space weather, explaining how these factors can improve—or disrupt—radio signals. You'll also learn how to interpret common space weather reports and what those numbers mean for real-world operating conditions. We'll wrap up with a look at recent solar storms and how they impacted HF propagation