Solar – Coos County Radio Club

Solar Cycle 25 Declining

News Letter from Tacoma Radio Club. Solar Cycle 25 is now officially past the peak of solar activity. https://w7dk.org The lead article is a discussion about how to prepare for the declining solar cycle. “During daytime the D-layer absorption becomes weaker, this allows 40 meters to open earlier in the afternoon. At night, the F-layerContinue reading “Solar Cycle 25 Declining”

Bruised Ionosphere

Conditions should improve by late tomorrow. We are experiencing the impact of a major solar event that began on January 19, 2026. While solar flux is high (generally good for DX), the atmosphere is extremely “noisy” and unstable due to a direct hit from a fast-moving Coronal Mass Ejection (CME). Impact on Ham Radio OperationsContinue reading “Bruised Ionosphere”