... DVB transport streams which come from coder, multiplexer. CSP-6302 QAM Modulator, is the main equipment CATV digital head-end, ... It does signal processing like RS coding, convolution interleaving and QAM modulating, providing IF/RF output Features 1. Complying DVB standard ... . 2. Support full range variable data rate, bandwidth and QAM mode Data stuffing 3. super buffer (optional),anti-burst code ...