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Early 1960s: VOR systems finally became widespread; before that, aircraft used commercial AM radio stations for navigation. (AM stations are still marked on U.S. aviation charts). 1963: Color television was commercially transmitted, and the first (radio) communication satellite, TELSTAR, was launched.
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.
8 February – Congressional investigations begin into payola in the radio and record industries. 29 February – The radio program At Your Service debuts on St. Louis radio station KMOX. The program is believed to be first locally produced radio talk show, that helps launch the talk radio format in the US. [1]
Phone-in talk shows were rare, but disk jockeys attracted a following through their chatter between records. The most popular radio shows during the Golden Age of Radio included The Jack Benny Program, Fibber McGee and Molly, The Goldbergs and other top-rated American radio shows heard by 30–35 percent of the radio audience. [120] [121]
In 1960 NASA launched an Echo satellite; the 100-foot (30 m) aluminized PET film balloon served as a passive reflector for radio communications. Courier 1B, built by Philco, also launched in 1960, was the world's first active repeater satellite. Satellites these days are used for many applications such as GPS, television, internet and telephone.
1970: Amos E. Joel, Jr. of Bell Labs invented the "call handoff" system for "cellular mobile communication system" (patent granted 1972). 1970: British companies Pye TMC, Marconi-Elliott and GEC develop the digital push-button telephone, based on metal–oxide–semiconductor (MOS) integrated circuit (IC) technology.
In 1960 General Electric introduced the "Progress Line" DTO- series MTS mobiles which were full duplex, although subscribers were still required to press the "push to talk" bar on the handset to speak. There were also IMTS handheld transceivers (Yaesu's 1982 vintage Traveler) that operated on 2-4 watts, and these were all half duplex.
A 2021 analysis of over 700 million communications logged by the Club Log blog, [18] and a similar review of data logged by the American Radio Relay League, [19] both show that wireless telegraphy is the 2nd most popular mode of amateur radio communication, accounting for nearly 20% of contacts.