LFM2、LDS和ODF组成的现代电视发射机测试系统

State-of-the-art TV-transmitter measurements using LFM2, LDS and ODF

联邦德国罗德与施瓦茨公司(Rohde&Schwarz Co.)研制的计算机控制测试系统,由群时延测量仪LFM2、选频解调器LDS和电视数字示波器ODF组成,用于电视发射机在研制、生产过程中的质量评定和现场调试/维修。该系统可以测量线性和非线性失真,分析视频测试信号和记录测试结果。

A computer-controlled test system consisting of Group-delay Measuring Set LFM 2, Selective Demodulator LDS and TV Digital Oscilloscope ODF has been designed for quality assessment Of TV transmitters in development and produc- tion and for servicing on site. The system measures linear and nonlinear distor- tions, analyzes video test signals and logs test results.