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In 1965, Ford and Motorola jointly introduced the in-car 8-track tape player as optional equipment for 1966 Ford car models. In 1968, a dashboard car radio with a built-in cassette tape player was introduced by Philips.
The introduction of organized radio broadcasting in the early 1920s resulted in a dramatic reorientation and expansion of RCA's business activities. The development of vacuum tube radio transmitters made audio transmissions practical, in contrast with the earlier transmitters which were limited to sending the dits-and-dahs of Morse code. Since ...
The first car radio was introduced in 1922, but it was so large that it took up too much space in the car. [70] The first commercial car radio that could easily be installed in most cars went for sale in 1930. [71] [72]
The Link-NEC 100 was the companion camera to the Type 130 and designed in conjunction with NEC. It had a triax interface unit and could be used stand alone, via a radio link or with a CCU via triax cable. it shared a common architecture with the 130 by using the same 18mm tubes and both where fully automatic for set-up and used the same CCU (camera control unit), OCP (operational control unit ...
The Canadians were swept up in the radio craze and built crystal sets to listen to American stations while The Marconi Wireless Telegraph Company of Canada offered its first commercially produced radio-broadcast receiver (Model "C") in 1921, followed by its "Marconiphone" Model I in 1923.
FM uses frequency modulation of the radio wave to minimize static and interference from electrical equipment and the atmosphere, in the audio program. 1937: W1XOJ, the first experimental FM radio station after Armstrong's W2XMN, was granted a construction permit by the U.S. Federal Communications Commission (FCC).
The word radio is derived from the Latin word radius, meaning "spoke of a wheel, beam of light, ray".It was first applied to communications in 1881 when, at the suggestion of French scientist Ernest Mercadier [], Alexander Graham Bell adopted radiophone (meaning "radiated sound") as an alternate name for his photophone optical transmission system.
Even President Warren G. Harding, whose May 1922 speech to the Washington, D.C. Chamber of Commerce was the first radio broadcast by a president, [94] had a radio installed in the White House. [95] The existence of early radio stations encouraged many young people to build their own crystal sets (with ear phones) to listen to the new technical ...