AMSS
AMSS (from amplitude modulation signaling system ) is a system similar to the Radio Data System (RDS) for the transmission of digital information via radio stations. In contrast to the RDS system, AMSS is not used for VHF transmitters, but for long, medium or short wave stations.
The identification of the sender is usually sent in the AMSS message. It is also possible to transmit the date and the exact time. The AMSS data can be received with the help of a DRM receiver or a modified radio and corresponding software that can also decode DRM.
operation area
Current
AMSS data are broadcast by the following stations:
Medium wave:
- currently no broadcasts with AMSS
Short wave:
- BBC World Service - 15575 kHz
Historical
In the past, AMSS encoders were used in the following transmission systems:
Transmitter still in operation:
- RTL (France) - 234 kHz (until summer 2009 and from mid-2010 to mid-2011, when the outdated system was replaced by a DRM-enabled transmitter)
Transmitter switched off:
- Truck radio - 531 kHz
- BBC World Service - 648 kHz (until the transmitter in Orfordness was switched off at the end of March 2011)
- Deutschlandradio Kultur - 990 kHz (Label: DKULTUR)
See also
literature
- ETSI TS 102 386
Web links
- The AM Signaling System (AMSS), "Lindsay Cornell" (English; PDF file; 183 kB)
- DRM and AMSS specifications (partly in English)
- AMSS The AM Signaling System: Does your radio know what it's listening to? (PDF file; 507 kB)
- Screenshot of an AMSS broadcast
