Radio broadcasting - Wikipedia
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit.
Radio | Definition, History, & Facts | Britannica
Radio is sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers.
Broadcasting | Definition, History, Types, Systems, Examples ...
broadcasting, electronic transmission of radio and television signals that are intended for general public reception, as distinguished from private signals that are directed to specific receivers.
Radio in the United States - Wikipedia
Radio broadcasting has been used in the United States since the early 1920s to distribute news and entertainment to a national audience.
Radio Broadcasting Explained
2023年10月19日 · Radio broadcasting is essentially when audio is transmitted from one place to another. It originally referred to sending audio signals over AM and FM, but now includes DAB and streaming over the internet.
Radio and digital radio | How it works | AM and FM compared
2022年5月20日 · Radio means sending energy with waves. In other words, it's a method of transmitting electrical energy from one place to another without using any kind of direct, wired connection. That's why it's often called wireless.
AM broadcasting - Wikipedia
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands.