KOPB-FM

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; 62 years ago (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
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 (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.

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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.

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The station signed on the air in 1962; 62 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.