... , safe and reliable. Equipped with RF inpout/ output, audio and video inpout/ output interface. Voice control, mute when no signal. Fine Tuning ... ) Video modulation: 80% ± 8%, Video in: 1Vp-p Audio modulation: 90% ± 18%, Audio in:1Khz Video output:1.0 Vp-p 75 ... ohm Audio output:-10db 10K ohm TV standardM/N,B/G,I, ...