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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 .
In wireless radio remote control devices like drones, garage door openers, and keyless entry systems, radio signals transmitted from a controller device control the actions of a remote device. The existence of radio waves was first proven by German physicist Heinrich Hertz on 11 November 1886. [4]
Radio, sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. Learn more about the history of radio in this article.
The radio broadcasting of music and talk intended to reach a dispersed audience started experimentally around 1905–1906, and commercially around 1920 to 1923. VHF (very high frequency) stations started 30 to 35 years later.
História. As primeiras radioemissões. Tecnologia. Receptor. Transmissor. Transceptor. Audiência. Ver também. Referências. Ligações externas. Rádio (telecomunicações) Nota: Se procura outros significados da palavra, veja Rádio.
Acontece a primeira transmissão esportiva em rede nacional no Brasil. 1941 : A Rádio Nacional lança o Repórter Esso, primeiro rádio jornal brasileiro, também entra no ar a primeira novela radiofônica do país: "Em busca da felicidade". 1946 : Surgem os gravadores de fita magnética, dando maior agilidade ao rádio.
