... CPU control, 2 bits LED display. Audio Video RF Modulator:Functions and Features:1. Combined medium frequency input ... video modulation index (VIDEO), radio strength (SOUND), RF output level (RF OUT), easy use.Technical Data ItemParameterVision Carrier Max ... >65dBAdjacent Channel Rejection(fp=1.25MHz)>45dBOutput Impedance75ΩRF Output Return Loss>14dBFrequency Accuracy±5KHzOutput Level Setting20dBVideo ...