KOPB-FM is a non-commercial, listener-supported radio station licensed to Portland, Oregon. It is owned by Oregon Public Broadcasting and airs a public radio news and talk format. It is a member station of National Public Radio (NPR), American Public Media, the Public Radio Exchange (PRX), and airs the BBC World Service overnight. KOPB-FM serves as the flagship station for OPB, simulcast on multiple stations and FM translators in Oregon. It is a primary entry point station for the Emergency Alert System.