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Guglielmo Giovanni Maria Marconi, 1st Marquis of Marconi GCVO was an Italian inventor and electrical engineer, known for his creation of a practical radio wave–based wireless telegraph system. This led to Marconi's being credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy".
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.
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave transmissions, but also on the longwave and shortwave radio bands.
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit. To receive the content the listener must have a broadcast radio receiver (radio). Stations are often affiliated with a radio network that provides content in a common radio format, either in broadcast syndication or simulcast, or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM, FM radio stations transmit in FM, which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB, HD radio, DRM.
Lee de Forest was an American inventor, electrical engineer and an early pioneer in electronics of fundamental importance. He invented the first practical electronic amplifier, the three-element "Audion" triode vacuum tube in 1906. This helped start the Electronic Age, and enabled the development of the electronic oscillator. These made radio broadcasting and long distance telephone lines possible, and led to the development of talking motion pictures, among countless other applications.
WHA is a non-commercial radio station, licensed since 1922 to the University of Wisconsin and located in Madison, Wisconsin. It serves as the flagship for the Wisconsin Public Radio "WPR News Netowrk". WHA's programming is also broadcast by FM station WERN in Madison. The station airs a schedule of news and talk programs from Wisconsin Public Radio, NPR, American Public Media, Public Radio International, the Canadian Broadcasting Corporation and the BBC.
Frank Conrad was an American electrical engineer, best known for radio development, including his work as a pioneer broadcaster. He worked for the Westinghouse Electrical and Manufacturing Company in East Pittsburgh, Pennsylvania, for half a century. His experimental radio station provided the inspiration, and he acted in an advisory role, for the establishment of Westinghouse's first broadcasting service, over radio station KDKA.
KDKA is a Class A, clear channel, AM radio station, owned and operated by Audacy, Inc. and licensed to Pittsburgh, Pennsylvania, United States. Its radio studios are located at the combined Audacy Pittsburgh facility in the Foster Plaza on Holiday Drive in Green Tree, and its transmitter site is at Allison Park. The station's programming is also carried over 93.7 KDKA-FM's HD2 digital subchannel, and is simulcast on FM translator W261AX at 100.1 MHz.
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.
The year 1926 saw a number of significant happenings in radio broadcasting history.
1921 in radio details the internationally significant events in radio broadcasting for the year 1921.
The year 2007 in radio involved some significant events.
WEPS is a radio station licensed to serve Elgin, Illinois, United States. The station is owned by the Elgin Area School District U46 and licensed to Board of Education School District U-46. Founded in 1950, WEPS is the oldest non-commercial educational radio station in the state of Illinois.
9XM is an Indian Hindi free-to-air music channel based in Mumbai. The channel is owned by 9X Media, an Indian television business. 9XM's programming is focused on Hindi-language music videos. The channel is available on all major dth platforms, including DD Free Dish. The channel is available on channel number 4 on DD Free Dish.
Radio station 2XG, also known as the "Highbridge Station", was an experimental radio station located in New York City and licensed to the De Forest Radio Telephone and Telegraph Company from 1915 to 1917 and 1920 to 1924. In 1916, it became the first radio station employing a vacuum-tube transmitter to make news and entertainment broadcasts on a regular schedule, and, on November 7, 1916, became the first to broadcast U.S. presidential election returns by spoken word instead of by Morse code.
The year 1904 in radio involved some significant events.
The year 1913 in radio involved some significant events.
KFAY was licensed in August 1922 as Medford, Oregon's first broadcasting station, and was also the first radio station in southern Oregon. The station was deleted in late 1924. Two years later KFAY's owner, W. J. Virgin, founded KMED in Medford.
Colors is an Indian general entertainment pay television channel owned by Viacom18. It was launched on 21 July 2008. Its programming consists of family dramas, comedies, fantasy shows, youth-oriented reality shows, shows on crime, and television films.
References
- ↑ U.S. patent 1,173,079 .
- ↑ "Election Returns Flashed by Radio to 7,000 Amateurs". Electrical Experimenter: 650. January 1917. Retrieved 2019-10-24.
- ↑ Magnus, Amanda (2016-12-05). "The 100th Anniversary Of The First Broadcast From 9XM-WHA" . Retrieved 2019-10-24.
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