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Marconi
Guglielmo Marrconi built a wireless system capable of transmitting signals at long distances. -
Trans-Atlantic
Marconi conducts the first successful transatlantic radio communication -
Radio Audiocast
Fessenden uses an Alexanderson alternator and rotary spark plug transmitter to make the first radio audio broadcast -
First Radio Stations
First radio news program is broadcasted -
FM Radio
Edwin Armstrong invents FM (frequency modulation) radio. FM provides static free broadcasting -
Radio Suffers
The Television makes the radio suffer. radio begins to loclize on only playing records -
RDS is invented
Radio can now be heard in the Car, and stationary tuners -
The Digital Age
Computers now process the radio signals and Sirius Satellite Radio is founded
