About set-top box sharing technical parameter
Radio frequency output frequency …………………………77.25MHz (VL frequency band) Radio frequency power output and impedance ……………………………80dB/75? Sound accompaniment subcarrier wave frequency ……………………………………6.5MHz Infrared signal subcarrier wave frequency …………………………………38KH Video input, power output and impedance ……………0.75-1Vpp/75? Transmitting range ……………………………………………?100M Working voltage ……………………………Ac220±10%th, 50/60Hz Consumed power ………………………………………………?3W Who can give me to explain …