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Eugene Polley (November 29, 1915 – May 20, 2012) was an electrical engineer and engineering manager for Zenith Electronics who invented the first wireless remote control for television. Life and career
Some of the best products from years gone by no longer make sense in today’s world. ... it took until 1975 for push button phones to make an impact. Tone-enabled features like call waiting and ...
Radio broadcasting has been used in the United States since the early 1920s to distribute news and entertainment to a national audience. In 1923, 1 percent of U.S. households owned at least one radio receiver, while a majority did by 1931 and 75 percent did by 1937.
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.
21 July 1923, from 1930 part of Dutch Public Radio AM 279 kHz, 1927 also 1004 kHz, today FM network 500 W, 1927 5 kW 2RN (Irish Free State radio) RTÉ (Irish national radio & television) [40] General Post Office (O'Connell Street), Dublin, Ireland 1 January 1926 AM 380 kHz, and from Cork AM612 kHz, NDO, 50% time KRO, 50% NCRV NPO
Zello is a live voice push-to-talk communication platform that turns any smart device into a digital two-way radio that works over Wi-Fi and cell networks anywhere in the world.
Mobile radio telephone systems were mobile telephony systems that preceded modern cellular network technology. Since they were the predecessors of the first generation of cellular telephones, these systems are sometimes retroactively referred to as pre-cellular (or sometimes zero generation , that is, 0G ) systems.
the first to introduce push-button car radios [24] introduced soap operas to radio broadcasts [37] introduced the first non-electric refrigerator (Icyball) [citation needed] introduced the first refrigerator with shelves in the door (Shelvador) [15] launched the world's most powerful commercial radio station (WLW, at 500 kW) [12]