Improve your TV’s signal with the Philex 27813HSG/03 4-Way TV Signal Booster. The boost your TV needs Perfect for houses in poor reception areas, the 27813HSG/03 helps to improve your TV’s picture quality, providing 12 dB of signal gain per port. It not only boosts your signal, but can be used to distribute the output to up to four TVs without reducing quality. It can also be used to boost the signal from DVD and satellite receivers.4G filter The integrated 4G filter helps to remove the interference and channel loss caused by 4G mobile phone signals. The Philex 27813HSG/03 4-Way TV Signal Booster is designed to give your signal the boost it needs.