Telemetry Standards, RCC Standard 106-20 Chapter 4, July 2020: Pulse Code Modulation Standards
Range Commanders Council White Sands Missile Range United States
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Pulse code modulation PCM data are transmitted as a serial bit stream of binary-coded time-division multiplexed words. When PCM is transmitted, premodulation filtering shall be used to confine the radiated radio frequency RF spectrum in accordance with Chapter 2 Appendix 2-A. These standards define pulse train structure and system design characteristics for the implementation of PCM telemetry formats. Additional information and recommendations are provided in Appendix 4-A and in RCC 119-06. Two classes of PCM formats are covered in this chapter the basic, simpler types are Class I, and the more complex applications are Class II. The use of any Class II technique requires concurrence of the range involved. All formats with characteristics described in these standards are Class I except those identified as Class II.