RECOMMENDATION ITU-R BO.712-1- High-quality sound/data standards for the broadcasting-satellite service ...
ANNEX 1 - High quality sound/data standards for the broadcasting-satellite service in the 12 GHz band
1 Introduction
2 Summary description of the systems
    2.1 The digital satellite radio (DSR) system
    2.2 MAC/packet family full-channel digital mode
    2.3 The multi-channel digital sound/data (MDS) system
3 Conclusion
APPENDIX 1 TO ANNEX 1 - Specifications of the DSR system
1 Introduction
2 Encoding of the sound signal
    2.1 Source signal
    2.2 Formation of sound signal blocks
    2.3 Transmission format
3 Multiplexing
    3.1 General
    3.2 Structure of the main frame
    3.3 Structure of the superframe
    3.4 Use of the special service bits
    3.5 Use of the additional information bits
4 Modulation and RF transmission
    4.1 Modulation technique
    4.2 Scrambling
    4.3 Differential coding
    4.4 Spectrum shaping
    4.5 Modulation states
ANNEX 1 TO APPENDIX 1 - Programme-related information (PI) interface in the DSR sound broadcast receiver
ANNEX 2 TO APPENDIX 1 - Packet structure for programme-related information (PI)
ANNEX 3 TO APPENDIX 1 - Modulation
ANNEX 4 - Spectrum mask for the earth station
ANNEX 5 TO APPENDIX 1 - Data transmission
APPENDIX 2 TO ANNEX 1 - Technical description of the full-channel digital mode of the MAC/packet family systems
1 Introduction
2 The time-division multiplex structure
3 Data transmitted in line 625 relevant to the full-channel digital mode
    3.1 Static data frame (SDF)
    3.2 Repeated data frame (RDF)
4 Service identification (SI) channel in the full-channel digital mode
APPENDIX 3 TO ANNEX 1 - Specifications of the MDS system
1 Introduction
2 Signal encoding
    2.1 Pre-emphasis
    2.2 Sampling
    2.3 14/10 companding
    2.4 Range bit
    2.5 Conditional-access scheme
3 Multiplexing
    3.1 Lower multiplexing stage
    3.2 Higher multiplexing stage
4 Modulation and RF transmission
    4.1 Modulation
    4.2 Additional error correction (MDS2)