KOPB-FM (91.5 FM) is a non-commercial, listener-supported radio station licensed to Portland, Oregon.
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 following year, it moved to 91.5 MHz, in the section of the FM band set aside for non-commercial stations.
KOAP-FM changed its call letters to KOPB-FM in 1989 to identify with Oregon Public Broadcasting, its parent company.