Radio

Radio is a technology that uses electromagnetic waves to transmit audio signals through the air. It allows for the broadcast of information, music, and entertainment to a wide audience. The term can refer to the medium itself, the devices used to receive the broadcast (radios), or the overall industry involving radio programming and broadcasting stations. Radio operates on various frequencies within the electromagnetic spectrum, including AM (Amplitude Modulation) and FM (Frequency Modulation) bands, each with its own characteristics in terms of sound quality and range. The concept of radio has evolved to include digital broadcasts, satellite radio, and internet radio, expanding the ways in which audio content can be delivered and accessed.