FMDay

FMDay is an informal observance dedicated to frequency modulation (FM) radio. It is not an official holiday; rather, it is celebrated by radio enthusiasts, educators, broadcasters, and professional societies to highlight the history, technology, and ongoing relevance of FM transmission.

Origins and scope: The concept arose in online communities and among amateur radio and engineering groups in the 2000s, with no central organizing body. Dates and activities vary by region and organization.

Activities: Participants host public demonstrations of FM receiver and transmitter fundamentals, conduct webinars or talks on modulation theory, organize listening sessions to compare FM with other formats, and share educational material on social media.

Impact: FMDay is used to promote literacy in radio engineering, appreciation for high-fidelity audio, and awareness of spectrum stewardship.

See also: Frequency modulation; FM broadcasting; Radio technology; Amateur radio.