Channel Master CM-7777 Titan 2 Antenna High Gain Preamplifier Combined VHF/UHF inputs and Single coax input also VHF / UHF gain: 30dB -its a flat gain now 	High Gain unit offers 30dB gain which will always over amplify any signals that are already strong enough. Strongest TV antenna amplifier on the market. Channel Master Preamplifier works best paired with other Channel Master antennas. Includes a switchable FM trap - Outdoor rated housing Preamplifier and its power supply can withstand up to 140 F temperatures Warning: Because of the high gain output, the CM-7777 is recommended for applications where ALL broadcast towers are 80+ miles away. Just one high power signal or broadcaster in close proximity can cause over-amplification, which can result in the loss of reception. For 98% of (short range) consumer applications, the CM-7778 Medium Gain Preamplifier is recommended. Please Note: Kindly refer the Instructional Video and User Manual before use which is highly essential.