Machine / system · UVB-76 - The Buzzer
Atencion / HM01
Cuban numbers station, V02a then digital
Atencion / HM01 in the timeline
2012-11-17 Cuba goes digital: HM01
The Cuban 'Atencion' station, long a spoken-voice broadcaster, is largely replaced by HM01, a hybrid that mixes spoken groups with digital data files transmitted as sound. The numbers station modernises without changing its purpose.