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in 1895 he began laboratory experiments in his father's country estate at Pontecchio where he succeeded in sending wireless signals over a distance of one and a half miles.
He Sent and received first radio signal in 1895.
In 1896 he was later introduced to Mr.(later sir) William Preece, Engineer in chief of the post office. -
Marconi gave his first public demonstrations in December 1896.One major use for radio could be in crossing stretches of water. Cables were expensive and very vulnerable.In the summer of 1897 Marconi set up a link spanning the 14 kilometers of the Bristol Channel.
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Marconi steadily increased the range of his wireless system.In the spring of 1899 a first link was set up to cross the english channel between an existing station at South Foreland in England and a station set up at Wimereux near Bologne in France.
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1906 lee de forest, created (or Borrow) the audion tube, a vacuum tube that amplified signals.It was the first triode, consisting of a partially evacuated glass tube containing three electrodes. A heated filament, a grid and a plate.
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Speech was first transmitted across the continent from New York City to San Francisco and across the atlantic ocean, from the Naval radio station NAA at Arlington, Virginia to the Eiffel Tower in Paris.
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The first radio station in 1920 was called 8XK. It was later renamed KDKA. Frank Conrad created the station 8XK. The radio station KDKA is still around today broadcasting out of Pittsburgh, Pennsylvania.
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the possibilities of broadcasting entertainment and news using radio soon arose. In Britain initial transmissions were made by the Marconi Company from their Chelmsford works for experimental purposes.These broadcasts started in February 1920 .
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1922 WEAF aired a 10 minute commercial or toll broadcasts for an apartment complex charging $50.Which is probably $5 per minute.
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The Westing house Company set up a short wave broadcasting Station (KDKA) in East Pittsburgh which transmitted on a wavelength of 62.7 metres. This was successfully received and rebroadcast in Britain.
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Uncle charlie was too popular. So they established FRC in 1927. To organize the licensing transmitters. Assigning Radio Station frequencies, call letters and power limits.
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In the middle of the Great Depression people were hurtin' for $$$$.It was also when the radio reached its popularity with general audiences.
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From Radios before they were used to listen to your favorite shows. But this one, its often associated with rock-and-roll radio from the 1970's. This radio is also made more portable then the previous ones.
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in sometime around the 1980's boom boxes are created. Most consumers would use them on the street and blast the music they were playing. They played a major role in the hip hop industry.
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Major Edwin Armstrong invented the FM Transmitter, which made for a stronger signal and higher quality sound. Listeners were forced to buy new radio sets. Talk=AM Music=FM.
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The first MP3 is created. Also, known as compacted audio. Frauenhofer developed the first, however, unsuccessful mp3 player. In 1997,developer Tomislav Uzelac of advanced multimedia products invented the AMP MP3 playback engine, the first successful MP3 player.
