Winegard ANWI8700 Winegard AP Signal Amplifier (Discontinued by Manufacturer) High performance, low noise TV antenna preamplifier 17 dB VHF, 19 dB UHF Amplifies digital signal Built in FM Trap to prevent overload from strong local FM stations Power supply and power injector included High performance, low noise TV antenna preamplifier Provides gain of 17 dB VHF, 19 dB UHF Amplifies digital signal for HDTV broadcasts Built in FM trap to prevent overload from strong local FM stations Power supply and power injector included