KÉK DUNA Rádió began broadcasting as an FM radio station on April 5, 1996. It was available on multiple frequencies in areas including Esztergom, Tatabánya, Komárom, Győr, Mosonmagyaróvár, and Székesfehérvár. From 2017 until June 30, 2020, KÉK DUNA was accessible online with six different music channels. As of the provided text, their broadcast is currently paused.