IEC 61993-2 （2018)(Ed3.0) ​Maritime Navigation and Radiocommunication Equipment and Systems - Automatic Identification Systems (AIS) - Part 2 Class A Shipborne Equipment of the Universal Automatic Identification System (AIS) - Operational and Performance Requirements, Methods of Test and Required Test Results 海上导航和无线电通信设备及系统 - 自动识别系统(AIS) - 第2部分 通用自动识别系统(AIS)的A级船载设备 - 操作和性能要求、测试方法及所要求的测试结果