DIN EN 61108-4-2005 海上导航和无线电通信设备与系统.全球导航卫星系统(GNSS).第4部分:船载DGPS和DGLONASS海上无线电信号接收设备.性能要求、试验方法和要求的试验结果
Maritime navigation and radiocommunication equipment and systems - Global navigation satellite systems (GNSS) - Part 4: Shipborne DGPS and DGLONASS maritime radio beacon receiver equipment - Performance requirements, methods of testing and required test r