Return to Main Menu Return to BO Series Menu ==================== RECOMMENDATION 650-2* - STANDARDS FOR CONVENTIONAL TELEVISION SYSTEMS FOR SATELLITE BROADCASTING IN THE CHANNELS DEFINED BY.. ANNEX 1 - Television standards for the broadcasting-satellite service 1 Introduction 2 Summary description of the systems 2.1 MAC/packet family 2.2 B-MAC systems 2.3 Digital sub-carrier/NTSC system APPENDIX 1 TO ANNEX 1 - Main characteristics of the MAC signal 1 Multiplexing aspects 2 Vision aspects 3 Summary APPENDIX 2 TO ANNEX 1 - Multiplexing methods for the emission of several digital audio signals and also data signals in broad 1 Introduction 2 Services to be offered 3 Multiplexing of the sound and data signals 3.1 Synchronous time-division multiplexing (STD) 3.2 Packet multiplexing