RadioShack 1500472 1-In/4-Out Bidirectional 3GHz Cable TV Amplifier Boosts cable TV signals by up to 10dB, while minimizing interference Allows bidirectional communication for Pay-Per-View, interactive TV and Internet Adjustable gain control for best picture quality Operating frequency range (forward path): 54MHz--3GHz - AND - Operating frequency range (reverse path): 5-40MHz Gain: Up to 10dB - AND - Gain adjustment range: 8dB - AND - Insertion loss: 4dB - AND - Power usage: &lt;2W