Persons influential in the field of radio Michael Faraday (predictions) James Clerk Maxwell (theoretical work) Heinrich Rudolf Hertz (experimental demonstrations)  Edwin Howard Armstrong Guglielmo Marconi Nikola Tesla
Persons influential in the field of radio Michael Faraday (predictions) James Clerk Maxwell (theoretical work) Heinrich Rudolf Hertz (experimental demonstrations) Oliver Lodge (techniques for transmitting and receiving radio waves) Guglielmo Marconi (adapted radio waves for use in signalling) Reginald Fessenden (developed amplitude modulation (AM) radio and first voice transmission) Edwin Howard Armstrong (developed frequency modulation (FM) )
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Oliver Lodge (techniques for transmitting and receiving radio waves) Guglielmo Marconi (adapted radio waves for use in signalling) Reginald Fessenden (developed amplitude modulation (AM) radio and first voice transmission)
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Guglielmo Marconi Nikola Tesla
(developed frequency modulation (FM) )