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1916: First regular broadcasts on 9XM (now WHA) – Wisconsin state weather, delivered in Morse Code; 1919: First clear transmission of human speech, (on 9XM) after experiments with voice (1918) and music (1917). 1920: Regular wireless broadcasts for entertainment began in Argentina, pioneered by the group around Enrique Telémaco Susini.
On February 17, 1919, station 9XM at the University of Wisconsin in Madison broadcast human speech to the public at large. 9XM was first experimentally licensed in 1914, began regular Morse code transmissions in 1916, and its first music broadcast in 1917. Regularly scheduled broadcasts of voice and music began in January 1921.
Milestones in radio: the first half century (1895–1945). The UNESCO courier (February 1997), p. 16–21; Radio Review/Radio Listeners Guide (1925–1929), Broadcasting Yearbook (1935–2010), World Radio TV Handbook (1947–) Berg, Jerome S. The early shortwave stations: a broadcasting history through 1945 (2013) radioheritage.net
This proved instrumental in giving the company a lead in developing an experimental radio broadcasting station immediately after the war. The first radio broadcast in Canada was accomplished by The Marconi Wireless Telegraph Company of Canada in Montreal on December 1, 1919 under the call sign XWA (for "Experimental Wireless Apparatus") from ...
Before the discovery of electromagnetic waves and the development of radio communication, there were many wireless telegraph systems proposed and tested. [4] In April 1872 William Henry Ward received U.S. patent 126,356 for a wireless telegraphy system where he theorized that convection currents in the atmosphere could carry signals like a telegraph wire. [5]
1927: First Siemens-Karolus-Telefunken facsimile between Berlin and other European cities; 1933: First tests of the Finch Facsimile system in New Jersey [4] 1937: First broadcast of a radiofax newspaper, in the Minneapolis/St-Paul area [8] 1939: W9XZY St. Louis delivers first daily newspaper by radio facsimile.
On May 7, 1943, at 3:00 evening broadcasts. The first broadcast of Fernsehsender Paris (Paris Télévision) was transmitted from rue Cognac-Jay. These regular broadcasts (5 1 ⁄ 4 hours a day) lasted until August 16, 1944. One thousand 441-line sets, most of which were installed in soldiers' hospitals, picked up the broadcasts.
After sailing to Europe in 1934, Farnsworth secured an agreement with Goerz-Bosch-Fernseh in Germany. [26] Some image dissector cameras were used to broadcast the 1936 Olympic Games in Berlin. [43] Farnsworth returned to his laboratory, and by 1936 his company was regularly transmitting entertainment programs on an experimental basis. [44]