The Model H881 Amplified Modulator Combiner Hub has inputs for eight modulators for distribution through a Model H838BID or Model H838HHR Video Hub. The Model H881 functions like a zero-loss signal combiner. The modulated signals from the eight inputs are combined into a single output with about 1 dB of gain. The Model H881 increases the number of modulated channels that can be inserted by the video hub.
NOTE: The Model H881 does not pass IR remote control signals back to the modulators.