Radio

Radio: A technology that allows for the transmission and reception of audio signals over electromagnetic waves, typically in the frequency range of 3 kHz to 300 GHz. It is commonly used for broadcasting music, news, and other forms of entertainment as well as for communication purposes. Radio systems include transmitters that convert audio into radio waves and receivers that convert radio waves back into audio. The medium can be analog or digital, with digital radio offering enhanced sound quality and additional features.