Winegard HDP269 Signal Amplifier (Discontinued by Manufacturer) Impedance-75 Ohm; Gain-12 dB - 3 dB Noise; Winegard Preamp High Output 12Db Vhf / 12Db Uhf High performance, low noise TV antenna preamplifier 12 dB VHF, 12 dB UHF Amplifies digital signal Built in FM Trap to prevent overload from strong local FM stations Power supply and power injector included