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”

Museum Ships Weekend

MUSEUM SHIPS WEEKEND JUNE 5TH – 7TH All Aboard for 2026 Museum Ships Weekend! The historic U.S.S. Lucid is the setting for SDARC Museum Ships Weekend – this weekend! We are running a 3 station set up including CW, SSB Voice and Digital to make worldwide contacts. Over 100 ships around the world are participatingContinue reading “Museum Ships Weekend”

Artemis II Radio Plan

Target Launch Date: April 1, 2026. Launch Window: If the April 1st date slips, there are several “launch opportunities” in early April (specifically April 1, 3, 4, 5, and 6) based on the alignment of the Earth and Moon. https://en.wikipedia.org/wiki/Artemis_II Mission Duration: Approximately 10 days, ending with a splashdown in the Pacific Ocean. For theContinue reading “Artemis II Radio Plan”

Quantum Antenna?

“Promising implications for everyday uses in consumer electronics.” Sam Jarman, Phys.org Rydberg-atom sensors become antennas to detect the radio signals, performing demodulation and down conversion automatically. Rydberg receivers could eliminate significant portions of the front-end devices and electronics concerned with signal isolation when compared to conventional receivers. In a Rydberg atom, a single electron isContinue reading “Quantum Antenna?”

Amateur Operators Prosecuted

In Belarus, several amateur radio operators face severe penalties, including the death penalty, for alleged espionage and high treason amid a government crackdown. Accusations stem from standard radio equipment, deemed ineffective against modern encryption. Exiled operators argue this represents a targeted assault on intellectual freedom within the technical community.