GB/T 37656-2019
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
GBT37656-2019, GB37656-2019