The Shure Model UA845 is a UHF antenna distribution system that allows the expansion of wireless microphone systems by splitting one pair of antennas to multiple receivers. It also amplifies RF signals to compensate for insertion loss that results from splitting signal power to multiple outputs. A single UA845 system can support up to four wireless receivers. Multiple UA844 systems can be used in a tiered configuration until the maximum number of compatible frequencies is reached. This UA845 operates from 470-952mHz.