The Contemporary Research QCP8 is a passive VHF/UHF RF combiner for CATV head end applications. The unit has eight inputs and one output. The sides of the enclosure are vented to allow for side by side rack mounting with actively cooled QMOD encoder/modulators. Used for combining up to eight RF sources or combining multiple 45dB out QMOD HDTV Modulators-IPTV Encoders.