The field of radio studies has expanded considerably over the last two decades, building on an uneven academic engagement with the century-long history of the medium. This renaissance of radio studies has paralleled the expansion in the new field of sound studies, and the two areas have produced some mutually beneficial insights. This chapter seeks to set out the productive ways that radio has and can be studied in terms of the medium’s existence as encultured sound. By this I mean understanding radio as the product of distinct national cultures at particular historical moments.