The UA221-RSMA Reverse SMA Passive Antenna Splitter from Shure is a bi-directional splitter/combiner for the Shure GLX-D Advanced Digital wireless system. It can be utilized to route an RF signal from a single antenna to two inputs, or connect two antennas to a single input.

The splitter unit is intended for use with Shure wireless systems that operate between 700 MHz and 2.7 GHz. The antennas must be compatible with each wireless receiver's operating frequency range. Additionally, two 2' reverse SMA cables are also included.