Page "Independent radio" Paragraph 1

Conversely, in places such as the United States, where commercial broadcasters are the norm, independent radio is sometimes used to refer to non-commercial educational radio stations that are primarily supported by listener contributions and are thus independent of commercial advertising concerns.

With the advent of large commercial broadcast radio network companies, and the general adoption of the term public radio in the United States to refer to non-religious radio-oriented listener-supported stations, the term has also been used to refer to commercial radio stations that are run independently of the large radio conglomerates.