1904 in radio

List of years in radio (table)
… 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 …
In music 1901 1902 1903 1904 1905 1906 1907 In film 1901 1902 1903 1904 1905 1906 1907
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The year 1904 in radio involved some significant events.

Events

• 7 January (with effect from 1 February) – The Marconi Company establishes "CQD" as one of the first international maritime radio distress signals.
• 24 May – The United States Patent Office awards Marconi a patent for a "Wireless signaling system".
• 16 November – English electrical engineer John Ambrose Fleming, working for Marconi, is awarded a United States patent for the Fleming valve, the first thermionic vacuum tube, a two-electrode diode, which he calls the oscillation valve.
• First radio transmission of music, at Graz, Austria.

Births

• 5 January – Anona Winn, Australian-born British broadcasting personality (d. 1994)
• 15 January – Charles Hill, British physician, medical and broadcast executive, politician and "The Radio Doctor" (d. 1989)
• 23 February – William L. Shirer, American war correspondent (d. 1993)
• 8 May – John Snagge, English radio newsreader (d. 1996)
• 24 May – Sefton Delmer, German-born British propaganda radio broadcaster (d. 1979)
• 14 August – Lindley Fraser, Scottish-born academic economist and broadcaster (d. 1963)
• 27 October – Les Mitchel, American radio and film producer, director and actor (d. 1975)
• 24 November – Pegeen Fitzgerald, American radio talk-show host (both alone and with her husband, Ed) on WOR and WJZ in New York City and Norcatur, Kansas (d. 1989)