Radio broadcasting is the transmission of radio frequency waves that in turn are modulated, they propagate electromagnetically through space. It is a means of communication to which the majority of the population has access as a listener. The radio receiver, as it is a low-cost instrument, small in size and with diverse programming, has a greater impact on people's daily lives, both in urban and rural areas.
Aleksander Stepanovitch Popov, Henry Bradwardine Jackson and Oliver Joseph Lodge, managed in 1895 and 1896 to transmit radio signals over short distances. Guglielmo Marconi registered in June 1896, in London, the first patent for a radio communication system, invented based on previous research by Michael Faraday, James Maxwell, Heinrich Hertz and others. In Brazil, the gaucho priest Roberto Landell de Moura performed, in 1893, from the top of Avenida Paulista to the hill of Sant'Anna,