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Showing posts with the label Radio transmission

Year 1945.

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23 March : In France, all private radio stations are nationalized by decree and the  state broadcasting monopoly is strengthened.  11 April : The Sarajevo (Yugoslavia) radio station starts broadcasting.  19 May : The Berlin Rundfunk starts broadcasting.  9 June : Radio broadcasting in the Soviet-occupied zone of Germany comes under the control of the Soviet military administration.  15 August : The Emperor of Japan makes his first radio broadcast , announcing his country's capitulation.  10 September : A memorandum on " Freedom ofexpression and freedom of thepress " in Japan abolishes all restrictive laws promulgated under the previous regime.  11 December : A memorandum reorganizes NHK. Government control is abolished and private radio is banned. A committee of representatives of the Japanese people is formed.

Year 1941.

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Radio Douala (Cameroon), broadcasts programmes in support of the Free French.  Negus Haile Selassie I sets up a radio station broadcasting 4 hours a day in Amharic, Arabic and English, independent of colonial control.  Radio Nairobi (Kenya) broadcasts in Hindustani, Urdu and Gujarati. The Geneva Studio (Switzerland) begins broadcasts in support of humanitarian action by the International Red Cross.  August : A commission led by Colonel W. Donovan is set up in the United States to combat Axis radio propaganda worldwide.  The Yugoslav radio network is destroyed. A transmitter is built at Skopje.  A clandestine transmitter of the Central Committee of the Communist Party of Croatia is established at Zagreb.  Radio starts up in Northern Rhodesia (now Zambia).

Year 1938.

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 A law sets up military censorship in Spain.  There are 650 Radio transmitters and 26 million radio receivers in the U.S.A.  30 October: Orson Welles's programme based on H.G. Wells's War of the Worlds's broadcast on CBS and sows panic among thousands of radio listeners .

Year 1921.

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2 January : KDKA broadcasts the first religious programme, "Church of the Air" .  In France, Gustave Ferriemakes the first radio broadcasts from the official "Paris PTT" transmitter on the Eiffel Tower .  9 May : A play is broadcast forthe first time on the air, directfrom the Davis Theatre in the U.S.A.  2 July : An RCA station broadcasts the world heavyweightchampionship fight between Georges Carpentier and Jack Dempseyfrom Hoboken, New Jersey (U.S.A.).  August : Radiokomintern is launched in the U.S. S.R

Year 1917.

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  The Bolsheviks use radio to influence the Germans during negotiations for the Treaty pf Brest-Litovsk. 8 November: A decree on the press establishes censorship that will last for 72 Years in Russia.

Year 1913.

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 Amateurs with galena-crystal radios listen in to the first regular weekly musical programmes broadcast from a wing of the Chateau de Laeken (Belgium). A federation of radio clubs , the Wireless Society of London ( later the Radio Society of Great Britain ) is founded in London. There is a special appeal about a device, however primitive, that can pull in radio voices and music through the air from many miles away without batteries or electrical power of any kind, just an antenna and a ground. BRITISH VINTAGE WIRELESS SOCIETY

Year 1912.

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 15 April: Radio amateurs pick up the SOS sent out by the TITANIC .  The sinking of the RMS Titanic on April 15, 1912 .

Year 1908.

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 2 April: Lee De forest experiments with his triode in France by broadcasting from the Eiffel Tower .

Year 1905.

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 In Canada, the Wireless Telegraph Act stipulates that a licence must be obtained for wireless telegraphy . First Wireless communication in Spain, between El Ferrol del Cauddilo and la Coruna. Discovery of the properties of galena (lead sulphide) as a detector of radio-electric signals .

Year 1904.

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  First experiments with telegraphic radio links in Spain. In France a commercial maritime radio network is set up under the control of the Ministry of Posts and Telegraphs. John fleming (U.K.) invents the thermionic two-electrode valve , or diode making possible sound transmission. A radiotelegraphy station is build on the Adriatic coast in the Principality of Montenegro.

Year 1902.

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Radiotelegraphy equipment was first installed on the Eiffel Tower in paris. But his equipment did not convey comprehensible messages. Photograph of Guglielmo Marconi radio equipment, c.1902.

Year 1901.

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12 December: Marconi makes the first transatlantic wireless transmission , using Morse code , between Poldhu in Cornwall (U.K.) and St. John's Newfoundland.

Year 1900.

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  Marconi obtains a patent for a process enabling a operator to select a wavelengh . (The first receivers picked up all frequencies at the same time.) Febryary: the first commercial wireless station is set up, on the island of Borkum (Germany).

Year 1898.

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5 November - Eugène Ducretet describes to the French Academy of Sciences Transmissions between the Eiffel tower and Pantheon in Paris (5 Km).

Year 1896.

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 2 June : In England, Guglielmo Marconi files a patent for a system of wireless communication , and later transmits and receives Morse code signals over a 3 km distance.

Amateur Radio Service Operating Rules concerning Rebroadcasts of non-broadcast radio transmissions.

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In the matter of Amendment of Parts 73 and 97 of the Commission's Rules Concerning Rebroadcasts of Transmissions of Non-broadcast Radio Stations.  1. The Commission is adopting revisions to its broadcast rules concerning rebroadcast of non-broadcast radio transmissions to eliminate unnecessary restrictions and administrative procedures and to conform them to new provisions of the Communications Act of 1934, as amended. These revisions provide for: 1) elimination of the prohibition on rebroadcasts of Personal Radio Service communications!; 2) elimination of the requirement for FCC rebroadcast approval; and, 3) exemption of rebroadcasts of CB and amateur radio communications from the requirements for prior authorization from the originating station. The Commission also is revising portions of its amateur radio rules to clarify its intention to maintain the amateur service for purposes separate from broadcasting.