About the Southern California Monitoring Association

Celebrating 30 Years as Southern California’s Premier Radio Monitoring Community

Founded in September 1996, the Southern California Monitoring Association (SCMA) emerged following the closure of the national Radio Communications Monitoring Association (RCMA). SCMA has since become the region’s leading organization for radio enthusiasts, uniting hobbyists, professionals, and public safety personnel with a passion for radio communications.

Our members come from diverse backgrounds, ranging from first responders and journalists to amateur radio operators and casual listeners. Whether you’re interested in monitoring local police and fire communications or exploring the intricacies of digital and trunked radio systems, SCMA offers a welcoming community for all experience levels.​

Meetings

SCMA hosts regular Zoom meetings on the first and third Wednesdays of each month. These sessions feature open discussions, radio frequency updates, guest speakers, and resource sharing. Anyone interested in the mission of the SCMA is encouraged to attend.​

In-person meetings are currently on hold as we search for a new venue.

Click this link for information on SCMA meeting locations and times.

Activities

Beyond meetings, SCMA offers:​

  • Newsletters: Periodic publications featuring the latest frequencies, monitoring tips, and community news.​
  • Exclusive Tours: Supporter-only visits to notable facilities such as the LAPD Dispatch Center, L.A. County Fire Dispatch, FAA Air Traffic Control, U.S. Coast Guard Air Rescue Squadron, and various radio and TV stations.
  • Online Resources: A comprehensive website with frequency databases, newsletters, and multimedia content.

As you can see, the SCMA maintains an active home page on the World Wide Web.

Stay Connected

Anyone can join our email list hosted on Groups.io to receive timely updates, share discoveries, and engage in discussions. To subscribe, visit our Groups.io page.​

Support the SCMA

SCMA welcomes anyone interested in radio communications. Our community includes professionals from law enforcement, fire services, media, and government, as well as dedicated hobbyists. Notably, our founding member, the late Gene Costin—known to many as Gene Hughes—authored the renowned Southern California Police Call guide. Click on this link for a tribute to Gene Hughes. To learn more about supporting the SCMA, visit our Support Information page.​

For more information or to get involved, please contact us.​