|
The year 1931 saw a number of significant events in radio broadcasting history. ==Events== *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.〔(【引用サイトリンク】url=http://www.richsamuels.com/nbcmm/wmaq/wmaqnbc.html )〕 *(undated) November - KGKF, Little Rock, Arkansas, changes call letters to KARK. 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「1931 in radio」の詳細全文を読む スポンサード リンク
|