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KALW is a public radio station based in San Francisco, California. Its FM radio broadcast signal is broadcast over the immediate San Francisco Bay Area at 91.7 MHz, and is webcast with live streaming audio. ==Background== KALW's license is held by the San Francisco Unified School District (SFUSD). The station is an independently operated National Public Radio affiliate, carrying content from NPR, American Public Media, Public Radio International and the BBC World Service. In addition, KALW produces its own local news, music and interview shows, including the live weekday call-in program, ''Your Call'', the evening news magazine, ''Crosscurrents'', and the weekly two-hour live variety program, ''West Coast Live!'', broadcast each Saturday morning. As KALW is affiliated with the San Francisco Unified School District, it also carries broadcasts of the monthly SFUSD Board meetings and daily listings of school lunch menus, with said menus occasionally read by celebrities who have come to the station for interview shows. The KALW studios are located at Phillip and Sala Burton Academic High School off Mansell Avenue in the City. KALW is the oldest FM station west of the Mississippi, having launched as an experimental station for a demonstration exhibit by owner General Electric at San Francisco's world's fair at Treasure Island in 1939–40. The license was transferred to the SFUSD at the close of the fair. KALW originally operated on 42.1 MHz in the old FM band, which was reassigned to police and fire departments after World War II.〔()〕 KALW's original transmitter was a modified GE medical diathermy machine. While the original transmitter had not been used since the switch to the modern FM band in the late 1940s, it was still located at John O'Connell Technical High School until the school was demolished in the mid-1990s. The station's current transmitter tower is on Twin Peaks. KALW was instrumental in helping KQED television sign on the air in 1954 as one of the first Non-commercial educational television stations in the country, by providing technical training, studio space, and engineering advice to the KQED founding staff. KALW provided Chinese language simulcasts of KGO-TV newscasts in the 1970s, before local Asian language newscasts became established. During the 1970s and 80s KALW also aired live coverage of SFUSD sporting events, the last such regular live coverage of high school sports in San Francisco broadcasting. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「KALW」の詳細全文を読む スポンサード リンク
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