Antronixs new Return Residential Amplifier (RRA) Series was designed for reliable subscriber premise return path amplification such as cable modems and two-way set-top boxes 6 kV surge withstand on all ports. Unique, non arc gap surge protection design, to provide maximum protection while eliminating high impulse noise, which can be caused during an arc gap discharge. Weather sealed housing with RFI gasket 1 RF Output Not for Satellite Use