International electrotechnical vocabulary - part 713 : radiocommunications : transmitters , receivers , networks and operation 国际电工词汇.第713部分:无线电传输:发射器,接收器,网络和操作
Maritime navigation and radiocommunication equipment and systems - digital interfaces - single talker and multiple listeners 船舶导航和无线电通信设备及系统.数字接口.简单扩音器和复合听声器
In radiocommunications , the transmission , by means of radiowaves , of programs of sound and vision for general reception 在无线电通信技术中,供一般接收而发送无线电波的声、像节目的传输方式。
Maritime navigation and radiocommunication equipment and systems - general requirements - methods of testing and required test results 海上导航和无线电通信设备及系统.一般要求.测试方法和要求的测试结果
Maritime navigation and radiocommunication equipment and systems - digital interfaces - part 1 : single talker and multiple listeners 航海和无线电通信设备及系统.数字接口.第1部分:单一扩音器和复合听声器