Emergency Radio Frequencies

# General | Frequency | Description | | --------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- | | 34.90 MHz | Nationwide emergency channel for the National Guard. | | 39.46 MHz | Emergency communication channel for local and state police. | | 47.42 MHz | Nationwide relief operations channel for the Red Cross. | | 52.525 MHz | FM calling frequency for ham radio operators in their six-meter band, especially active during exceptional propagation conditions. | | 121.50 MHz | International aeronautical emergency frequency. | | 138.225 MHz | Primary FEMA channel for disaster relief operations. | | 146.52 MHz | Ham radio frequency for non-repeater communications on the two-meter band. | | 151.625 MHz | Utilized by mobile businesses such as circuses, exhibitions, trade shows, and sports teams. Other channels in use are 154.57 and 154.60 MHz. | | 154.28 MHz | Local fire department emergency communication channel. Additional frequencies include 154.265 and 154.295 MHz. | | 155.160 MHz | Local and state agency channel for search and rescue operations. | | 155.475 MHz | Local and state police emergency communication channel. | | 156.75 MHz | International maritime weather alerts channel. | | 156.80 MHz | International maritime distress, calling, and safety channel. | | 162.40 MHz — 162.55 MHz, 163.275 MHz | Series of channels used for NOAA weather broadcasts and bulletins. | | 163.4875 MHz | Nationwide emergency channel for the National Guard. | | 163.5125 MHz | National disaster preparedness frequency for the armed forces. | | 164.50 MHz | National communication channel for the Department of Housing and Urban Development. | | 168.55 MHz | Federal civilian agency channel for emergencies and disasters. | | 243.00 MHz | Military aviation emergency channel. | | 259.70 MHz, 296.80 MHz | Frequencies for the Space Shuttle during re-entry and landing. | | 311.00 MHz, 319.40 MHz | Active U.S. Air Force in-flight channels. | | 317.70 MHz, 317.80 MHz | Active channels for U.S. Coast Guard aviation. | | 340.20 MHz | Active channel for U.S. Navy aviation. | | 409.20 MHz | National communication channel for the Interstate Commerce Commission. | | 409.625 MHz | National communication channel for the Department of State. | | 462.675 MHz | General Mobile Radio Service channel for emergency communication and traveler assistance. | # Chico, CA [Butte County (Public Safety)](http://www.scancal.org/co/butte/) # Palo Alto, CA Amateur Radio Emergency Services (ARES) and Radio Amateur Civil Emergency Services (RACES). | Frequency | ARES/RACES Title | Type | Description | | ----------- | ----------------- | ---------------- | -------------------------------------------------------------- | | 147.540 MHz | Command A | Simplex, PL 100 | Primary simplex for tactical and resource nets | | 443.825 | Command B | +5 MHz, PL 151.4 | Primary repeater for tactical and resource nets; W6EI Repeater | | 442.000 | Command Alternate | +5 MHz, PL 151.4 | Alternate repeater; WW6HP Repeater | | 441.000 MHz | District 1 | Simplex, PL 100 | Local tactical communications | | 440.200 MHz | District 2 | +5 MHz, PL 123 | Local tactical communications, N6BDE repeater | | 147.525 MHz | District 3 | Simplex, PL 100 | Local tactical communications | | 147.480 MHz | District 4 | Simplex, PL 100 | Local tactical communications | | 446.500 MHz | District 5 | Simplex, PL 100 | Local tactical communications |