Radio

Radio is a technology that enables the transmission and reception of electromagnetic waves, typically in the frequency range of 3 kHz to 300 GHz. It is primarily used for communication, broadcasting audio content, such as music and talk shows, and for data transmission. Radio works by converting sound into electrical signals that are modulated onto radio waves, which are then transmitted through the air. A radio receiver captures these waves and converts them back into sound. The technology is fundamental to various forms of communication, including AM (Amplitude Modulation), FM (Frequency Modulation), and digital radio. Radio has applications in numerous fields, including entertainment, public information dissemination, emergency services, and more, making it a crucial medium for mass communication.