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1931 saw a number of significant events in history. radio broadcasting
23 April – Inauguration of the
Swiss national medium-wave transmitter at Sottens by the French-language Société Romande de Radiophonie ( SRR) and Radio-Genève. 30 April – In
France the Poste Colonial (also known as "Radio Coloniale") begins broadcasting to the French colonies from a shortwave transmitter at Pontoise. 1 May – The
Los Angeles Police Department's KGPL begins broadcasting. 11 May – The
Pittsburgh Police begin broadcasting with "radio patrol cars" and the region's first emergency band. 24 May –
Polskie Radio begins transmitting its national programme from a new long-wave station at Raszyn, outside Warsaw. It is the most powerful transmitter in Europe at the time. 24-30 July- Jehovah's Witnesses make the most extensive radio chain broadcast ever to air up to 1931. The broadcast was a portion of a convention held in Columbus, Ohio, USA. The convention was broadcast via more than 450 radio stations in Australia, Canada, Europe and the United States.
18 October -
NBC replaces its NBC-Pacific nine-station network with two five-station networks, known informally as the Orange and Gold networks. Orange comprises KGO, Oakland; KFI, Los Angeles; KGW, Portland, KOMO, Seattle, and KHQ, Spokane. Gold comprises KPO, San Francisco; KECA, Los Angeles; KEX, Portland; KRJ, Seattle; and KGA, Spokane.  10 October -
William Randolph Hearst buys WGBS, which was later named WINS after Hearst's International News Service.  1 November -
NBC acquires half-interest in WMAQ, Chicago, Illinois, from the Chicago Daily News.  (undated) November - KGKF, Little Rock, Arkansas, changes call letters to
debuts on WGN, Chicago, Illinois. Harold Teen  4 January -
The Fred Waring Show debuts on NBC.  27 January –
, the first daytime radio serial, debuts on the Clara, Lu, and Em NBC Blue Network as a late-evening program. On 15 February 1932, the show moves to its morning time slot.  5 February –
Eddie Cantor has his first radio appearance on Rudy Vallee's . The Fleischmann's Yeast Hour 26 April -
debuts on The Carnation Contented Hour NBC West Coast.  21 May -
debuts on The Witch's Tale WOR (AM).  1 June -
The Camel Quarter-Hour debuts on CBS.  2 September –
Bing Crosby makes his solo debut on network radio and remains on air with at least one weekly show until the fall of 1962. 11 October -
debuts on The American Album of Familiar Music NBC.  16 October -
program debuts on The Boswell Sisters CBS.  26 October -
Alice Joy, the Dream Singer debuts on NBC.  3 November -
WJMS, Ironwood, Michigan, begins broadcasting.  25 December – The
Metropolitan Opera begins broadcasting its regular Saturday afternoon performances on the NBC Blue Network.
Closings [ edit ]
22 June -
ends its run on network radio Empire Builders NBC-Blue.  30 October - The
Federal Communications Commission ordered WJAZ and WCHI, both in the Chicago, Illinois, area, off the air in order to allow full-time operation for WCKY, Covington, Kentucky.  18 December - The
Federal Communications Commission ordered WOQ, Kansas City, Missouri, and WMAK, Buffalo, New York, off the air -- WOQ "to make way for KFH, Wichita, Kansas" and WMAK "because of an unsatisfactory showing of public interest" as reported in Broadcasting. 
References [ edit ]
^ "Two Pacific Coast Networks Are Formed By the NBC After Buying Four Stations" (PDF). Broadcasting. 1 November 1931 . Retrieved . 30 September 2014
^ "Hearst Buys WBGS Plans Improvement" (PDF). Broadcasting. 15 October 1931 . Retrieved . 24 September 2014
^ "NBC Acquires WMAQ". Broadcasting in Chicato, 1921-1989 . Retrieved . 29 September 2014
^ "KARK New Call" (PDF). Broadcasting. 1 December 1931 . Retrieved . 30 September 2014
^ Sies, Luther F. (2014). Encyclopedia of American Radio, 1920-1960, 2nd Edition. McFarland & Company, Inc. ISBN 978-0-7864-5149-4. Pp. 145-146.
^ a b c Cox, Jim (2008). This Day in Network Radio: A Daily Calendar of Births, Debuts, Cancellations and Other Events in Broadcasting History. McFarland & Company, Inc. ISBN 978-0-7864-3848-8.
^ a b c d e f g Dunning, John. (1998). On the Air: The Encyclopedia of Old-Time Radio. Oxford University Press. ISBN 978-0-19-507678-3.
^ "Voice of Iron Range" (PDF). Broadcasting. February 15, 1932 . Retrieved . 1 October 2014
^ "Six More Stations Ordered Silenced" (PDF). Broadcasting. November 1, 1931 . Retrieved . 30 September 2014
^ "Two More Stations Ordered Deleted" (PDF). Broadcasting. 1 January 1932 . Retrieved . 30 September 2014