The CHC-16U is a high quality active signal combiner capable of accepting up to 16 adjacent channels for use with today's headend systems. The CHC-16U uses a CATV hybrid amplifier to provide proven reliability, low harmonics and high output. The 40 dB minimum port-to-port isolation ensures combining without the potential of channel interaction. Low harmonic output & high isolation. 1RU 19" rackmount.