DIN EN 300065-1-2009 电磁兼容性和射频频谱物质(ERM) 接收气象或导航信息用窄带直接打印电报设备(NAVTEX) 第1部分:技术特性和测量方法
Electromagnetic compatibility and Radio spectrum Matters (ERM) - Narrow-band direct-printing telegraph equipment for receiving meteorological or navigational information (NAVTEX) - Part 1: Technical characteristics and methods of measurement (Endorsement