... 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 ... 20Hz-20KHz)Audio SNR≥70dBOthers RF inputIEC169-2F female, 75ΩVideo outputComposite PAL-D signal (RCA interface, 75Ω)Audio outputRCA ...