TV DVB-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 modulation mode2.Support S-VHS video output, dual AV SpecificationInput Input Frequency Range51~860MHzInput Signal Level48dBV~85dBVChannel Bandwidth8MHzSymbol Rate3.6~6.952Ms/SModulation Mode16, 32, 64, 128, 256QAMInput Reflection Loss> ...