KOPB-FM

KOPB-FM (91.5 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.

KOPB-FM is a Class C0 station with an effective radiated power (ERP) of 73,000 watts.^[2] The transmitter is off NW Skyline Boulevard, inside Forest Park in Portland.

The station signed on the air in 1962 (1962).^[3] Its original call sign was KOAP-FM and it broadcast at 92.3 on the FM dial. The following year, it moved to 91.5 MHz, in the section of the FM band set aside for non-commercial stations. In 1967, the commercial station that today is KGON began broadcasting at 92.3 MHz.

KOAP-FM changed its call letters to KOPB-FM in 1989 to identify with Oregon Public Broadcasting, its parent company.

• opb.org
• Facility details for Facility ID 50607 (KOPB-FM) in the FCC Licensing and Management System
• KOPB-FM in Nielsen Audio's FM station database

45°31′19″N 122°44′49″W / 45.522°N 122.747°W / 45.522; -122.747