2RN was the first radio broadcasting station in the Irish Free State. It began broadcasting on and continued until 1933, when it was succeeded by Radio Athlone (later Radio Éireann). The station was run by the Irish Post Office, under the Department of Posts and Telegraphs. Studios and wavelengths The studio for 2RN was originally located at Little Denmark Street, off Henry Street in Dublin, moving to the nearby GPO building in 1928. The 1.5 Kilowatt Marconi transmitter was located at McK… (More on 2rn)