海上导航和无线电通信设备及系统 D级数字选择性呼叫（DSC）甚高频（VHF）无线电话 测试方法及要求的测试结果

Maritime navigation and radiocommunication equipment and systems—VHF radiotelephone equipment incorporating Class“D”Digital Selective Calling（DSC）—Methods of testing and required test results