radio station
Refers to a broadcasting station that transmits radio programs. Can be used for both the physical facility and the organization.
I heard the news on the local radio station.
He works at a radio station.
テレビ局 broadcasts television programs, while ラジオ局 broadcasts radio programs, so learners should not mix up the medium each refers to.
Compound of ラジオ (radio, from English) and 局 (station, office).