Shure Incorporated - UAPF-X1

The Shure UAPF-X1 is an in-line passive RF filter to attenuate frequencies outside the X1 band and intended to be used with any Shure X1 band wireless product that has removable antennas, including SLX, ULX, and UHFR. Optimally, the unit should be located prior to any amplification of an RF signal. Positioning should be tested and adjusted for each individual setup. Antennas should be spaced far enough to obtain the widest possible RF field and to minimize RF signal drop out. In a diversity system, Shure recommends that antennas be positioned at 45°.