Scanner, radio monitoring, aviation, public safety communications, and Amateur Radio resources for Southern California.
Welcome to the Southern California Monitoring Association
The SCMA is a community for scanner listeners, amateur radio operators, aviation monitors, public safety communications enthusiasts, and radio hobbyists throughout Southern California. Since 1996, we’ve helped people share frequency information, monitoring tips, newsletters, meeting information, and radio-related news.
Latest SCMA News Articles
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San Bernardino County Opens $125 Million Valley Communications Center to Strengthen Emergency Response
San Bernardino County officials have opened the new Valley Communications Center in San Bernardino, a major public safety facility built to improve emergency communications, dispatch…
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Martin Mars Flying Boat Video: A Look at One of Aviation’s Great Firefighting Giants
Video Spotlight The Martin Mars flying boat is one of those aircraft that almost seems too large, too unusual, and too specialized to be real…
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Military Training Drills in Pasadena and Irvine Draw Attention Across Southern California
A late-night U.S. military training exercise involving helicopters, simulated weapons fire and controlled explosions startled residents in northeast Pasadena Wednesday night and early Thursday morning,…
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Chinese AI Firm Claims It Tracked B-2 Bomber Signals — and the Technology Has Lessons for Today’s Radio Monitors
An unverified B-2 claim highlights a real shift in modern monitoring: radios, open-source data, and AI are now part of the same picture A Chinese…
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FCC Warns Jack Gerritsen Over Alleged Unlicensed Ham Radio Operation in Los Angeles
The Federal Communications Commission has issued a new warning to Jack Gerritsen, a longtime figure in Southern California amateur radio enforcement history, after FCC agents…
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U.S. Air Force Plans to Buy Thousands of New Survival Radios for Downed Aircrew
The U.S. Air Force is preparing to buy thousands of new handheld survival radios designed to help locate and recover downed pilots and aircrew in…
Popular SCMA Resources
Join Us for an SCMA Meeting
SCMA currently meets online via Zoom on the first and third Wednesdays. Visitors are welcome. Our meetings include radio monitoring discussion, scanner tips, frequency updates, presentations, and conversations with other radio hobbyists.
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