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

Portland, Oregon
Broadcast area	Northwest Oregon - Southwest Washington
Frequency	91.5 MHz (HD Radio)
Branding	OPB Radio
Programming
Format	Public Radio - News - Talk
Affiliations	National Public Radio (NPR) American Public Media Public Radio Exchange (PRX) BBC World Service
Ownership
Owner	Oregon Public Broadcasting
History
First air date	1962; 63 years ago (1962) (as KOAP-FM at 92.3)
Former call signs	KOAP-FM (1962–1989)
Former frequencies	92.3 MHz (1962–1963)
Call sign meaning	Oregon Public Broadcasting
Technical information[1]
Licensing authority	FCC
Facility ID	50607
Class	C0
ERP	73,000 watts
HAAT	470 meters (1,540 ft)
Links
Public license information	Public file LMS
Webcast	Listen live
Website	opb.org

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.

Main article: Oregon Public Broadcasting

History

The station signed on the air in 1962; 63 years ago (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.