Distribution Amplifiers 
American Dynamics AD1421 Video Distribution Amplifier AD1421

Video Distribution Amplifier (AD1421): One video input to four video outputs Video loss detection with alarm

The AD1421 Series Video Distribution Amplifier distributes and amplifies the signal from one video input to four video outputs. Independent and isolated amplifiers for each individual output means that shorts, opens or noises on one output will not affect the remaining three outputs. No manual adjustment required.