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SC4ARES (SC4 Amateur Radio Emergency Service) consists of licensed radio amateurs in the South Coast, South County area of San Mateo who have registered with their local ARES leadership volunteering personal time, skill and equipment to serve in the public interest.

Upcoming SC4ARES Events:

September 2025

Monday September 22

19:30 – 20:00
SC4ARES Net

Visit our website for more information.

Tuesday September 23

20:00 – 20:30
SMCo Sheriff’s ACS Net

Visit the Sheriff’s ACS website for more information.

Monday September 29

19:30 – 20:00
SC4ARES Net

Visit our website for more information.

Tuesday September 30

20:00 – 20:30
SMCo Sheriff’s ACS Net

Visit the Sheriff’s ACS website for more information.

October 2025

Saturday October 4

09:30 – 11:30
Simulated Emergency Test
TBA

View the full calendar of events.