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The early history of radio is the history of technology that produces and uses radio instruments that use radio waves. Within the timeline of radio, many people contributed theory and inventions in what became radio. Radio development began as "wireless telegraphy". Later radio history increasingly involves matters of broadcasting.
Early Radio History; Howeth, Captain H.S. History of Communications – Electronics in the United States Navy, published 1963, GPO, 657 pages. Free online public domain US government published book. Wunsch, A.D., "Misreading the Supreme Court," Antenna, Volume 11 No. 1, November 1998, Society for the History of Technology
The timeline of radio lists within the history of radio, the technology and events that produced instruments that use radio waves and activities that people undertook. Later, the history is dominated by programming and contents, which is closer to general history .
Ray, William B. FCC: The Ups and Downs of Radio-TV Regulation (Iowa State University Press, 1990) Rosen, Philip T. The Modern Stentors; Radio Broadcasting and the Federal Government 1920–1934 (Greenwood, 1980) Settel, Irving. A Pictorial History of Radio (1960) Sies, Luther F. Encyclopedia of American Radio: 1920–1960 (McFarland, 2nd ed. 2 ...
Radio is the technology of communicating using radio waves. [1] [2] [3] Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates oscillating electrical energy, often characterized as a wave.
Category for the history of radio technology Subcategories. This category has the following 4 subcategories, out of 4 total. A. Amateur radio history (13 P) F.
The history of amateur radio, dates from the dawn of radio communications, with published instructions for building simple wireless sets appearing at the beginning of the twentieth century. [1] Throughout its history, amateur radio enthusiasts have made significant contributions to science , engineering , industry , and social services .
The invention of the transistor in 1947 revolutionized radio technology, making truly portable receivers possible, beginning with transistor radios in the late 1950s. Although portable vacuum tube radios were made, tubes were bulky and inefficient, consuming large amounts of power and requiring several large batteries to produce the filament ...