The Shure UA221DB-RSMA splits an incoming RF signal into two outgoing signals, allowing two GLXD4R+ receivers to share a single pair of antennas. Having both receivers share the same pair of antennas helps to reduce intermodulation problems and provides better reception with less interference.

The unit is fully compatible with Shure’s dual-band 2.4 and 5.8 GHz scanning technology employed in the GLX-D+ series. Designed for use with the UA8-2.4-5.8 omnidirectional antennas and the PA805-RSMA directional antennas, each kit includes two UA221DB-RSMA splitters, four coaxial cables, and attaching hardware.