DIN ETS 300067/A1-1994 无线电设备和系统.海上MF/HF服务的无线传真设备运行.技术特性和测量方法
Radio equipment and systems (RES) - Radiotelex equipment operating in the maritime MF/HF service - Technical characteristics and methods of measurement; English version ETS 300067:1990/A1:1993