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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.
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 .
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; Katz, Randy H., "Look Ma, No Wires": Marconi and the Invention of Radio". History of Communications Infrastructures* Timeline: First Thirty Years of Radio, 1895–1925.
Download QR code; Print/export Download as PDF; Printable version; In other projects ... Help. Category for the history of radio technology Subcategories. This ...
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... History of radio technology (4 C, 33 P) I. Radio frequency interfaces (1 P) M.
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.
Guglielmo Marconi, who built the first radio receivers, with his early spark transmitter (right) and coherer receiver (left) from the 1890s. The receiver records the Morse code on paper tape Generic block diagram of an unamplified radio receiver from the wireless telegraphy era [4] Example of transatlantic radiotelegraph message recorded on paper tape by a siphon recorder at RCA's New York ...
Download QR code; Print/export ... History of radio technology (4 C, 33 P) Radio timelines (1 C, 5 P) Pages in category "History of radio"