Shure UA221-RSMA Reverse SMA Passive Antenna Splitter

Route an RF signal from a single antenna to 2 inputs, or connect 2 antennas to a single input with Shure's bi-directional splitter/combiner for GLXD systems.

The Shure UA221-RSMA is a Reverse SMA Passive Antenna Splitter. This unit works with the GLX-D Advanced Digital Wireless Systems.
WARNING: Cancer and Reproductive Harm -

- Frequency Range: 2:1 Voltage Standing Wave Ratio (VSWR) 700–2700 MHz
- Impedance: 50 O
- Port-to-port isolation: 20 dB, minimum
- Insertion Loss: 0.8 dB (3 dB splitter loss not included)
- Maximum Power Handling: Total RF input power from all ports; 250 mW, Maximum
- Dimensions: 64.2 x 67.7 x 16 mm (2.5 x 2.7 x 0.6 in.) (H x W x D)
- Weight: 42.5 g (1.5 oz.)
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 0.75 lbs
Shipping Dimensions: 11 x 6 x 3 in
Manufacturer Part Number (MPN): UA221-RSMA

Consumer Alert

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device. Purchasers should also be aware that the FCC is currently evaluating use of wireless microphone systems, and these rules are subject to change. For more information, call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC) or visit the FCC's wireless microphone website at

NOTE: None of the wireless systems we carry are capable of violating the FCC guidelines stated above. We are presenting this information as a matter of legally required disclosure.

For support or warranty questions, please contact the manufacturer:
Phone: (800) 516-2525


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