Данные Файл обновления TI-83 Plus

Dictionary of file extensions. 2014.

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  • History of broadcasting — Broadcasting around the World = United States Defining exactly when broadcasting first began is difficult. Very early radio transmissions only carried the dots and dashes of wireless telegraphy. One of the first signals of significant power that… …   Wikipedia

  • Haute fréquence — Le qualificatif de haute fréquence possède un sens légèrement différent selon le domaine auquel il s adresse. En radiocommunication, et ce sera le sens développé dans cet article, le domaine des « hautes fréquences » (« High… …   Wikipédia en Français

  • NVIS — Le N.V.I.S. (Near Vertical Incidence Skywave), en Français: onde radio ionosphèrique à incidence quasi verticale, est un mode de propagation utilisé pour des radiocommunications locales et régionales dans la bande des moyennes fréquences et… …   Wikipédia en Français

  • Wilkinsburg, Pennsylvania — Wilkinsburg is a borough in Allegheny County, Pennsylvania, United States. The population was 19,196, at the 2000 census, having lost more than 10,000 in 60 years since 1940 when 29,853 people were enumerated. The borough was named in honor of… …   Wikipedia

  • Radio broadcasting — Long wave radio broadcasting station, Motala, Sweden …   Wikipedia

  • North American call sign — Many countries have specific conventions for classifying call signs by transmitter characteristics and location. The North American call sign format for radio and television call signs follows a number of conventions. All call signs begin with a… …   Wikipedia

  • Westinghouse Broadcasting — was formed in the 1920s as Westinghouse Radio Stations, Inc. It was renamed Westinghouse Broadcasting in 1954, and adopted the Group W moniker in 1963. It was a self contained entity within the Westinghouse corporate structure, and while the… …   Wikipedia

  • Frank Conrad — Infobox Person name = Frank Conrad image size = 150px caption = A portrait of Frank Conrad in 1921. He is holding a microphone in his hand. birth name = birth date = 4 May 1874 birth place = Pittsburgh death date = 11 Dec 1941 death place = death …   Wikipedia

  • KDKA (AM) — KDKA City of license Pittsburgh, Pennsylvania Broadcast area Western Pennsylvania Branding Newsradio 1020 KDKA Slogan The Vo …   Wikipedia

  • List of oldest radio stations — Contents 1 Stations 2 See also 3 References 4 External links …   Wikipedia

  • Funkamateur — aus Sri Lanka mit seiner tragbaren Amateurfunkstelle amerikanische …   Deutsch Wikipedia

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