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WTVN (610 kHz.) is a News/Talk AM radio station located in Columbus, Ohio, USA. WTVN is owned by iHeartMedia, Inc., and shares studio facilities with sister stations WXZX, WCOL-FM, WNCI, WODC, and WYTS in West Columbus. WTVN's transmitter site is located in Obetz, Ohio. ==History== WTVN originally started as WBAV, operating as a daytime station at 640 kHz on April 29, 1922. The call letters were later changed to WAIU, which stood for the station's parent company, American Insurance Union.〔http://digital-collections.columbuslibrary.org/cml_search_results.php?CISOOP1=any&CISOFIELD1=CISOSEARCHALL&CISOROOT=/african&CISOBOX1=WBAV〕 WAIU was a charter member of the CBS Radio Network, being one of the 16 stations that aired the first CBS network program on September 18, 1927.〔 ''Radio Digest'', September 1927, quoted in: McLeod, Elizabeth (September 20, 2002). (CBS—In the Beginning ), ''History of American Broadcasting''. Retrieved on 2007-01-01. The other stations were WOR in Newark; WADC in Akron, Ohio; WGHP in Detroit, Michigan; WCAO in Baltimore; WCAU in Philadelphia; WEAN in Providence; WFBL in Syracuse; WJAS in Pittsburgh; WKRC in Cincinnati; WMAK in Buffalo-Lockport; WMAQ in Chicago; WNAC in Boston; WOWO in Fort Wayne, Indiana; KMOX in St. Louis; and KOIL in Council Bluffs, Iowa.〕 The call letters were again changed in the late 1930s, this time to WHKC (to go with those of then commonly owned station WHK in Cleveland). In the middle-1940s, WHKC (still at 640 kHz) obtained the frequency of WCLE, 610 kHz in Cleveland, which operated daytime only, forming 610 WHKC. A directional antenna system was installed near Columbus. This allowed WHKC to go to a full-time operation which occurred in February 1945 with an effective radiated power of 1,000 watts. The station's power later was upgraded to 5,000 watts day and night in 1949. The 640 frequency was then assigned to new arrival WHKK in Akron (which corresponded with Akron station WJW moving to Cleveland). Operation on 640 kHz was limited to Los Angeles sunset because of the superior propagation at low AM frequencies, and the presence of clear-channel KFI in Los Angeles. The station adopted its current WTVN call letters in 1954 when it was acquired by Radio Cincinnati Inc., a firm that would later become Taft Broadcasting.〔"WHKC bought by WTVN (TV), WKRC interests for $158,000." ''Broadcasting'', April 19, 1954, pg. 7. ()〕 The sale to the Taft family made 610 AM a sister station to WTVN-TV (channel 6); in 1960 Taft launched an FM station in Columbus, WTVN-FM (96.3, now WLVQ). In 1987 Taft was reorganized as Great American Broadcasting after financier Carl Lindner, Jr. succeeded in a hostile takeover of the company. Great American retained WTVN and WLVQ but not WTVN-TV (now WSYX), which was sold to former Taft shareholder Robert Bass and his new company, Anchor Media. Great American Broadcasting was renamed Citicasters in 1993. Jacor Communications purchased Citicasters in 1996. WLVQ was split from WTVN when the FM station was acquired by CBS Radio in 1998, and a year later Jacor was absorbed into Clear Channel Communications. 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「WTVN」の詳細全文を読む スポンサード リンク
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