... shows test, radio, television, monitoring function.Using TFT LCD display image,LED backlighting with low power consumption.Built-in large ... system engineering, control engineering and technicians.Built-in satellite signal warning SpecificationTFT LED 3.5"(89mm); Display size:73* ... 65dBm~-25dBmLNB Power supply:13/18V,max400mA LNB Switch control:22KHzDiSEqC:1.2 edition Threshold:4.1dB;Demodulation chip ...