Diamond Antenna Duplexers are just what you need when splitting HF, VHF, or UHF signals. These duplexers may be used for combining two transceivers into one coax feed line. They are ideal for connecting HF/VHF radios, such ICOM IC-706 and IC-7000 series, and Yaesu FT-857 series, with two antenna ports, to a single feedline multi-band antenna, like the Diamond V7A. Diamond Antenna Duplexers eliminate the need to use an antenna switch and are made with a high-quality aluminum case with a black finish.