... ES8821A, DS8821B and ES8821Q, which fully utilize DSP (Digital Signal Processing) technologies. They are widely used in telecommunication, broadcasting, ... Chrominance-to-luminance Delay Inequality and etc.Professional digital signal analysis function: it supports Constellation Diagram of 16/ ... /QPSK modulation type and other key parameters in digital signal measurement, for instance, MER, EVM, and Pre/ ...