Many thanks to SRAA contributor, Richard Langley, who notes:
Live recording of Radio Progreso, Havana, Cuba, on 31 August 2015 beginning at about 01:10 UTC on a frequency of 4765 kHz. The signal originates from a 50 kW transmitter at Bauta, near Havana, with a non-directional antenna.
The recording, in Spanish, begins with the program "Nocturno / Domingo de Selecciones de la Actualidad," a program of current music. At 13m:05s in the recording, there is a brief station identification ("RP") followed by a short news report and announcements of current cultural events in Havana. There is a full musical station identification at 18m:55s ("Radio Progreso, cadena nacional, la onda de la alegría, transmitiendo desde La Habana, Cuba, primera territorio libre en America"). At 19m:45s, the program "Ritmos Dominical" begins, an eclectic music program featuring selections by, among others, Nirvana and Ace of Base as well as traditional Cuban rhythms. The recording ends with the program still in progress.
The broadcast was received on a Tecsun PL-880 receiver with its built-in telescopic whip antenna in Key West, Florida, using an RF bandwidth of 5 kHz. Signal quality is generally good. Occasionally, there is slight interference from what is believed to be a radar signal.