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Italian inventor Guglielmo Marconi first developed the idea of a radio, or wireless telegraph, in the 1890s. His ideas took shape in 1895 when he sent a wireless Morse Code message to a source more than a kilometer away. -
an electrical resonant transformer circuit designed by inventor Nikola Tesla. It is used to produce high-voltage, low-current, high frequency alternating-current electricity. -
The AUDION tube is essentially the very first amplifier to help push waves further and further by providing power to the signal. -
KDKA was the very first radio station made in Pittsburg. -
The invention and explosion of TV caused radio to lose audiences and advertising money, so program directors shaped radio into what it is today and people couldn't get music in specific places. -
FM broadcasting is a method of radio broadcasting using frequency modulation (FM). Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high fidelity sound over broadcast radio. -
The Federal Radio Commission was invented to help clean up broadcasting chaos and it later on created calls and had power limits