Splitting your signal to more than one TV? Distribution amps will help overcome the resulting signal loss. The CDA8 boosts signal to be split to 8 TV's or receivers. 54 -1000 MHz,5 - 42 MHz, 4.5 dB Gain per port,Low noise,15V AC Adapter included Can be used outside with a power inserter *Distribution amplifiers can make up for loss due to splitting but typically do NOT offer enough power to compensate for losses due to long cable runs or distant towers.