Winegard HDTV Antenna Preamplifiers are engineered to the highest specifications ensuring consistent signal amplification performance. The Winegard HDP-269 preamplifier is specifically designed to amplify DTV signals at the antenna 12 dB on VHF frequencies, and 12 dB on UHF frequencies, boosting the digital signal to overcome any cable or splitter loss in your TV antenna system and minimize dropouts. In a low signal area, a setup with long cable runs, or a multiple TV system, the HDP-269 preamp may be the solution you need for a perfect digital picture. Winegard AP series preamps are constructed of tough, high impact ABS material and the zinc plated steel hardware ensure electronic parts are safe from the elements. They feature a selectable and tunable FM trap to reduce strong local FM stations from interfering with your perfect digital picture. They also employ specialized circuitry featuring an ultra fast recovery diode. Power supply and mounting hardware included. Note: A preamplifier will not pull in extra signal, it can only amplify the signal reaching the antenna.