Radio

Radio refers to the technology and medium that uses electromagnetic waves to transmit and receive audio content. It typically involves broadcasting over specific frequencies, allowing audio signals to be sent through the air to be picked up by receivers. Radio is used for various purposes, including music, news, talk shows, and entertainment, reaching audiences over short or long distances. It can include AM (Amplitude Modulation) and FM (Frequency Modulation) transmission, which differ in the method of encoding audio signals. Additionally, radio can be used for two-way communication, as in walkie-talkies and amateur radio. The term “radio” also encompasses the devices that receive radio signals, commonly known as radios. Radio remains a significant medium for information dissemination and entertainment, adapting over the years with the advent of digital broadcasting and internet radio.