Radio Garcia-Serra was a Cuban radio station founded in 1929 Jorge Garcia-Serra founded Radio Garcia-Serra in Havana, Cuba in late 1929 The radio station was the second radio station established in Havana and transmitted under the call letters CMCU at a frequency of 660 kc which, at the time and throughout the 50’s, was the only frequency with a clear international frequency that could not be blocked or interfered. In the early stages, Radio Garcia-Serra used to broadcast music and on-air novelas written by distinguished Cuban and Spanish writers of the time.