digital radio        
noun uk/ˌdɪdʒ.ɪ.təl ˈreɪ.di.əʊ/ us/ˌdɪdʒ.ɪ.t̬əl ˈreɪ.di.oʊ/
 [ U ]数字广播 
the system of broadcasting using digital electronic signals that carry sound and information about what is being broadcast
  [ C ]数字式收音机 
a piece of electronic equipment used to listen to digital radio broadcasts