# Bay Area **Radio References:** * [San Mateo County, CA](https://www.radioreference.com/db/browse/ctid/223) **Logged:** | Frequency | Band | Activity | Location | Added | Notes | | --------- | ---- | ------------ | -------------------- | ---------- | ------------------------ | | 450.4600 | | News (ABC7?) | Bay Area | 2024-03-23 | Helicopter communication | | 488.7125 | | Police | San Mateo County, CA | 2024-03-23 | | | 488.7175 | | Police | San Mateo County, CA | 2024-03-23 | |