Built-in amplifier with adjustable gain control ... 863MHz2) Receiving range: UHF3) Resistance: 75 ohms4) Increase: UHF: 31 - 36dB5) Noise figure: 5.0dB6) Power supply ... 220V, 50 ~ 60Hz, DC 12V, 100mA7) Turning degrees: UHF: 2708) Gain: 22dB; gain control: 100 points9) Insertion loss ... indoor and outdoor TV antennas, , outdoor UHF ANTENNAS, outdoor aerials, UHF/VHF/FM antenna, Antenne extérieur, indoor ...