Zenith ZDS-5004 Satellite Diplexer (Discontinued by Manufacturer) Signal diplexer for combining surveillance camera, off-air, or cable TV signals into single cable Focuses all 3 feeds onto single wire that connects satellite TV receiver with outside dish Combination of signals doesn't adversely affect satellite TV reception Recommended for use with 2.3 MHz quad shield RG6 coaxial cable Saves hours of installation time and cable length; works indoors and outdoors