The WRU-806B plug-in diversity tuner module is the most popular choice for WL-800 series wireless mic installed system applications. Up to six WRU-806B modules can be installed into one MB-X6 tuner base (see MB-X6 for more details). The WRU-806B42/44 operates over a 24 MHz frequency band, within the range of 638 MHz to 662 MHz (TV channels 42, 43, 44 and 45). Pre-programmed frequency groups are provided for virtually interference free, mulitchannel operation. It also includes an easy-to-read LCD with comprehensive system information such as RF input status, audio output status, TX battery alarm indication, group/channel number and channel frequency in MHz.