examining the development of talk radio as a format, including its various subgenres, prominent hosts, and its role in public discourse

1860: The existence of radio waves predicted. 1866: Demonstrated that rapid variations of electric current could be projected into space. Jun 3, 2017 ... Commercial broadcasting didn't start until 1920, but the University of Wisconsin was experimenting with wireless transmission and in December ... The police officer will receive this either on a PC based police radio or a mobile data computer located in their car. ... The next year the Federal ... Jan 1, 2005 ... Hall of Famers (By Year of Enshrinement) · Hall of Famers' ventures ... invention. The Browns used the helmet in three more games before ... Jun 15, 2020 ... On this day in 1920, the first wireless radio broadcast in the UK took place, conducted by Guglielmo Marconi. Chelmsford wanderings. May 3, 2019 ... It wasn't until 1933, when EdwinArmstrong officially introduced FM radio, that we saw a true change in the audio market. Oct 6, 2020 ... Invented in Britain in the 1890s, this subscription service (£5 a year) ... Rather than make do with radio communication equipment and ... During these years, transmitters were quite large with many tubes and heavy batteries. Bramco, Inc. introduced its Control Box Transmitter that was advertised ... Dec 17, 2022 ... Radio Reaches a Mass Audience. Italian inventor Guglielmo Marconi received a U.S. patent for radio technology in 1904, three years after he ... An archetypical case is the invention of radio. To American—and Italian ... year he participated in the invention of a secure transmission system.