多数无线电技术使用模拟信号，而现代无线远程通讯使用数字传输。
While most radio technologies have used analog signals, modern wireless telecommunications are using digital transmissions.
主要介绍了数字监控系统在特殊钢厂的应用情况，提出了一种视频信号借助网络平台进行远程传输的实施方案。
The application of a digital monitored control system in the Special Steel Plant is presented, together with the implementation scheme of remote transmission of a video signal through networks.
通过显示器显示传输的数据，提供激发电压并传输模拟信号用于远程记录、警示或控制。
The customized LEVEL MATE II meter displays data from the transmitter, provides excitation voltage and transmits an analog signal for remote recording, alarm or control functions.
应用推荐