... C set top box 1.Support 16, 32, 64, 128, 256QAM modulation mode 2.Support S-VHS video output, dual AV DVB-C ... set top box1.Support 16, 32, 64, 128, 256QAM ... (RCA interface, 75Ω)Audio outputRCA interface, 600ΩY/C outputS-video Interface We are a high technology enterprise ... total solutions of DVB-S,DVB-T and DVB-C systems.We can design,manufacture and debug.If ...