terrestrial digital radio broadcasting
Technical term for digital radio transmitted from ground-based stations, as opposed to satellite radio. Often contrasted with 地上デジタル放送 (terrestrial digital TV broadcasting).
See also: 地上デジタル放送
Terrestrial digital radio broadcasting offers higher sound quality than conventional AM/FM broadcasting.
Refers to terrestrial digital television broadcasting, while 地上デジタルラジオ放送 specifically refers to radio.
Compound of 地上 (terrestrial), デジタル (digital), ラジオ (radio), and 放送 (broadcasting). A modern technical term.