Radio

Radio is a technology that uses electromagnetic waves to transmit and receive sound, typically music, voice, or other audio content, over long distances without the need for physical connections. It operates through the modulation of radio waves, which are generated by a transmitter and picked up by a receiver. Radio can encompass various forms of broadcasting, including AM (Amplitude Modulation) and FM (Frequency Modulation), as well as digital radio formats. The medium is widely utilized for communication, entertainment, news dissemination, and emergency broadcasting. In addition to traditional terrestrial radio broadcasts, radio transmission can occur via satellite or the internet.