From
wikipedia:
Quote:
The amplitude modulation signalling system (AMSS or the AM signalling system) is a digital system for adding low bit rate information to an analogue amplitude modulated broadcast signal in the same manner as the Radio Data System (RDS) for frequency modulated (FM) broadcast signals.
This system has been standardized in March 2006 by ETSI (TS 102 386) as an extension to the Digital Radio Mondiale (DRM) system.
Broadcasting
AMSS data are broadcasted from the following transmitters:
LW
RTL France: 234 kHz
MW
BBC World Service: 648 kHz
Deutschlandradio Kultur: 990 kHz
SW
BBC World Service: 15575 kHz
Formerly it was also used by:
MW
Truckradio 531 kHz
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Does anyone know any station that uses AMSS other than these listed? If not, does anyone know where can I get a sample of signal with AMSS modulation added?