The RADIO
Radio works by transmitting and receiving electromagnetic waves. The radio signal is an electronic current moving back and forth very quickly. A transmitter radiates this field outward via an antenna; a receiver then picks up the field and translates it to the sounds heard through the radio.
The Evolution of Radio
Over the last century, radio transformed from a cumbersome, experimental medium to a mobile, modern format that ushered in new technologies like television and cellular telephones. For many, radio was the fastest reliable way to receive updates about national and world events.
Since 1934, the Commission has worked to ensure that radio regulations remain reasonable and current to make way for innovation and evolving technology. Radio continues to be a relevant form of mass communication and remains one of the few free services to anyone with a receiver.