Brand: Antennas Direct. MPN: PA18. All preamplifiers boost signal but most also introduce noise - an undesirable signal which when strong enough can lead to poor or no reception. For TV antenna installations with weak signals in rural locations 100 ft. or more of coaxial cable from the antenna to the TV and/or the use of splitters our PA18 UHF/VHF Preamplifier will ensure ample gain while maintaining low-noise figures. Clean consistent signal performance for reliable picture quality and reception. The PA18 can be mast-mounted close to the antenna before the signal has weakened through the coaxial cable running between the antenna and the TV or converter box. Easy installation and easy to use. Includes low-loss power inserter two 36 weather-proof high-performance coaxial cables and 12V DC power supply. Helpful Tip: To determine if you need a PA18 Preamplifier first make sure your antenna is pointed in the direction of your local broadcast towers. Connect only one TV or converter box to the antenna. Perform a channel scan using the remote control for your TV/converter box. If you are not able to receive all of your local TV stations then there is a good chance you need a preamplifier to help boost the weak signals.