Radio

Radio is a technology that enables the transmission and reception of audio and, in some cases, data communications through electromagnetic waves. It operates by converting sound into electrical signals, which are then modulated onto radio waves, allowing them to be broadcast over distances. Radio signals can be transmitted over various frequencies and are typically classified into AM (Amplitude Modulation) and FM (Frequency Modulation) bands, each providing different audio quality and range characteristics.

Radio is most commonly used for broadcasting music, news, talks, and entertainment to the public through radio stations or for private communication in various applications, such as two-way radios and emergency services. Additionally, it encompasses a wide range of uses, including amateur radio, satellite communication, and wireless networking. The medium has had a significant impact on society, shaping cultural trends and providing a platform for communication and information dissemination.