Carrier communication automatic measurement based on computer virtual instrument

Use 10 kV medium voltage power line to carry out high-speed data transmission has become a hot spot, but the power line channel is complex, and the traditional measure method is too complicated. This paper describes the automatic measure principle and method of the narrowband channel characteristic for carrier communication, using the computer virtual instrument method can greatly enhance the efficiency of channel measurements, the results of measurement in the chart and text format are stored in the PC automatically and the practical effect of the device is verified by the measurement on the actual line.