The SHURE UA221‑RSMA Reverse SMA Passive Antenna Splitter is a professional wireless audio accessory designed to split or combine UHF antenna signals in RF systems using Reverse SMA connections. Built for flexibility and reliability, this splitter is ideal for expanding or optimizing wireless setups in live sound, theater, broadcast, and AV installations. The UA221-RSMA enables a single antenna signal to serve multiple receivers, or multiple antenna signals to be combined, thereby improving system efficiency without the need for active electronics.

Compatible with a variety of Shure wireless receivers and antennas (Reverse SMA terminated), this passive splitter ensures stable RF performance and a clean signal path, making it a dependable choice for wireless engineers and AV professionals.

UA221-RSMA Key Features

 Reverse SMA Passive Signal Splitter

  • Split one incoming RF signal into two outgoing signals

  • Combine two RF signals into one

  • Passive design — no power required

 Reverse SMA Connectivity

  • Designed for systems with Reverse SMA‑terminated antennas and receivers

  • Works with compatible Shure and third‑party gear using RSMA connectors

 Professional‑grade Design

  • Rugged, compact build ideal for touring, installation, and broadcast use

  • Maintains signal integrity with minimal loss

  • Simple, reliable passive operation
    Each kit includes two UA221-RSMA Splitters, four coaxial cables, and attaching hardware

Benefits

  • Flexible RF routing for multi‑receiver installations

  • Passive, reliable design with no need for power

  • Reverse SMA compatibility makes it ideal for many modern wireless rigs

  • Compact and rugged for professional setups and travel

Ideal Applications

  • Live concerts and performances

  • Houses of worship and worship teams

  • Conferences and corporate AV systems

  • Theater productions and performing arts

  • Broadcast and video production environments

Technical Specifications

  • Type: Passive Antenna Splitter

  • Connector Type: Reverse SMA (RSMA)

  • Function: 1‑to‑2 split or 2‑to‑1 combine (passive)

  • Power Requirements: None (passive)

  • Construction: Rugged metal housing

  • Use Case: RF antenna distribution for wireless mic systems

List price: $263.00
Price: $219.95
SKU: UA221-RSMA
Catalog: 
Commercial Accessories
Brand: 
Shure
Dimensions: 8 in × 5 in × 3 in
Weight: 2 lb