KQED-FM

KQED-FM (88.5 MHz) is a listener-supported, non-commercial public radio station in San Francisco, California. It is simulcast on KQEI-FM (89.3 MHz) in the Sacramento metropolitan area. The parent organization is KQED Inc., which also owns two PBS member television stations: KQED (channel 9) and KQEH (channel 54). Studios are on Mariposa Street in the Mission District of San Francisco.

KQED-FM is grandfathered at an unusually high effective radiated power (ERP) of 110,000 watts. The transmitter is along Radio Road, atop San Bruno Mountain, in Brisbane. KQEI-FM has an ERP of 3,300 watts, with its tower on Sorento Road in Elverta.

Programming
KQED-FM is one of the most-listened-to public radio stations in the United States. It often ranks first in the San Francisco radio market in the Nielsen ratings. In addition to local programming, KQED-FM carries content from major public radio distributors such as National Public Radio, the Public Radio Exchange and American Public Media, with the BBC World Service heard late nights. Popular NPR shows carried by KQED-FM and KQEI-FM include Morning Edition, All Things Considered, Fresh Air, Here and Now and Marketplace. Weekend shows include Wait, Wait...Don't Tell Me, Radiolab, On The Media, Code Switch, Latino USA, Hidden Brain, Freakonomics Radio, This American Life, The Moth Radio Hour, The New Yorker Radio Hour and The Splendid Table.

Among the locally produced shows are Forum with Mina Kim and Alexis Madrigal, The California Report and Tech Nation. The KQED-FM newsroom prepares frequent local and California news updates which air between programs, in addition to hourly newscasts from NPR.

In addition to over-the-air broadcasts, KQED-FM audio is carried on Comcast digital cable channel 960 with live streaming audio from its website and from the iHeartRadio platform. Forum is carried live, nationwide, on Sirius Satellite Radio. KQED also offers an extensive audio archive and podcasts of previous shows for download.

One of the most famous programs to have been broadcast on KQED was An Hour with Pink Floyd, a 60-minute performance by Pink Floyd recorded in 1970 without an audience at the station's studio. The program was broadcast only twice—once in 1970, and once again in 1981. The setlist included "Atom Heart Mother", "Cymbaline", "Grantchester Meadows", "Green Is the Colour", "Careful with That Axe, Eugene", and "Set the Controls for the Heart of the Sun".

KXKX
The San Francisco Theological Seminary, a Presbyterian group, began broadcasting with station KXKX in April 1963. The new 110,000-watt station signed on two years after the seminary received a construction permit from the FCC in August 1961. In addition to Christian radio programming, the station's subcarrier broadcast theology courses to receivers at 44 Bay Area churches.

When agencies of the Presbyterian Church (USA) could no longer support the station, KXKX signed off at midnight on the evening of June 29, 1967.

KQED-FM
In July 1968, the San Francisco Theological Seminary filed to sell KXKX to the Bay Area Educational Television Association, owner of public television station KQED (channel 9). The station returned to the air as KQED-FM in mid-1969, originally using the studios at 286 Divisadero Street inherited from the seminary. The founding manager was Bernard Mayes, who later went on to be executive vice president of KQED television and also co-founder and chairman of NPR.

The first programming of KQED-FM included news, 'street radio' broadcast live from local street corners, drama and music. In its third year on the air, KQED-FM became one of the first 80 network affiliates of National Public Radio, one of five in California. It aired the first edition of All Things Considered. Later, due to reduced funding, Mayes opened the air to 'Tribal Radio' - productions by local non-profit groups, some in their own languages.

Expansion into Sacramento
In 2003, KQED Radio expanded to the Sacramento metropolitan area by purchasing KEBR-FM at 89.3 MHz. The station is licensed to the suburban community of North Highlands. It signed on the air on February 21, 1992.

KEBR-FM 89.3 was originally owned by Family Radio, a Christian broadcaster based in Oakland at the time. The KEBR-FM call letters and format moved to a more powerful FM station at 88.1 MHz in Sacramento. KQED Radio changed the call sign on 89.3 FM to KQEI-FM. It became a full-time simulcast of KQED-FM in San Francisco.

Ransomware attack
In July 2017, The San Francisco Chronicle reported that KQED-FM and KQED-TV were the victims of a massive ransomware attack. Computer experts determined it began on June 15, 2017.

During the attack, the station's email was shut down, hard drives were locked, and prerecorded programs were lost. More than a month later, many critical systems were still offline.

Additional frequencies
In addition to the main station, KQED-FM is relayed by these stations and translators to widen its broadcast area.

KQED and KQEI also broadcast using HD Radio technology.