RTCA DO-163-1976 Minimum Performance Standards - Airborne High Frequency Radio Communications Transmitting and Receiving Equipment Operating within the Radio Frequency Range of 1.5 to 30 Megahertz; (Incorporates Errata - 1978)
Recommends standards and test procedures for HF/SSB receivers and transmitters designed to operate in a 3 kHz channel environment. Also includes standards for the provision of AM equivalent mode of operation. Appendices include conditions for testing and detailed test procedures. FAA Technical Standard Order (TSO) ?C C31d and C32d reference this document.