Antennas Direct UHF/VHF Combiner Box...This all weather antenna biner merges the signals from a UHF antenna with a VHF antenna on the same down lead. It is ideal for those who need to bine a UHF antenna with an existing VHF antenna or for those in markets with low band VHF HDTV channels. Threaded "F" connectors; Weatherproof housing; Adjustable mast clamp; 75 ohm output.