Annex A
Introduction
Transmission format
Synchronisation preamble phase
Data phase
End of message phase
Coder and interleaver flush phase
Minimum required performance
Appendices
Appendix 1: Orthogonal modulation of frames
Appendix 2: Specifications of associated communications
equipment
Appendix 3: Modem dialogues & interfaces with transmitter,
receiver and data terminals
Appendix 4: Modulator/demodulator filtering
Annex B
Example modulator - C language implementation