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Italian inventor Marconi Bologna Guigielmo, after two years
experiments with the use of Hertz apparatus, the antenna Popov, and coherer Branly, an achievement made in Bologna in 1894, a transmission of wireless telegraphy at a distance of 250 meters. about the invention and patented in 1896. Without support in Italy for his great invention, he continued his experiences in Britain. In 1897, Marconi set up the first season de radio del mundo en la Isla de Wight, al Sur de Inglaterra y en 1898 abrió la primera factoría del mundo de
equipos de transmisión sin hilos en hall street ( Chelmsford, Reino Unido) empleando en ella alrededor de 50 personas. En 1899 Marconi consiguió establecer una comunicación de carácter telegráfico entre Gran Bretaña y Francia. Tan sólo dos años después, en 1901, esto quedaría como una minucia al conseguirse por primera vez transmitir señales de lado a lado del Océano Atlántico. Las primeras transmisiones de carácter público no fueron llevadas a cabo hasta el año 1920, desde Chelmsford a iniciativa de la compañía English created by Marconi.
The August 27, 1920 takes place in Argentina's first radio broadcast. A group of young amateurs are responsible for airing Wagner's Parsifal opera from the Coliseo Theatre in Buenos Aries and passed into history with the name of "The Roaring of the roof." It was the doctor Enrique Susini with three medical students, his nephew and his friends Miguel Mujica Cesar and Luis Romero Carranza Guerrico. That August 27, 1920 between 21 and midnight, Enrique Susini was the kickoff to the story: "Ladies and gentlemen, the Radio Society
Argentina presents today the sacred festival of Richard Wagner, Parsifal, starring tenor Maestri, Aldo Rossi Morelli baritone and soprano Sara Cesar Argentina, all with the orchestra of the Teatro Costanzi in Rome , directed by Master Felix von Weingarten. That's great invention of the "Crazy Roof" in 1920, will be deeply honored and take a new and deeper value when millions of voices are silenced they deserve on the radio and mass media.
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