QAM Modulator Complying DVB standard signal channel coding. QAM Modulator Description:JXDH-6302 QAM Modulator, is the main equipment CATV digital head-end, receiving DVB transport streams which comeOutline:JXDH-6302 QAM Modulator, is the main equipment CATV digital head-end, receiving DVB transport streams which come from coder, multiplexer, DVB gateway, scrambler, video server etc. It does ...