RF Signal Combiner Modules by Impact Acoustics(?) are designed for easy installation into our distribution panels. An RF Signal Combiner creates a ?head-end? similar to a cable company. RF signals from up to 8 modulators are combined into a single output signal that can be distributed throughout your house or even your office or school. CCTV cameras, satellite receivers and VCRs are some of the potential sources that you can easily share through an RF system via a modulator. Use one of the inputs for off-air antenna or cable television and set your modulators for operation on unused channels.