Shure UA221DB-RSMA RSMA Dual Band Passive Antenna Splitter

The Shure UA221DB-RSMA RSMA Dual Band Passive Antenna Splitter is a compact, rugged RF distribution device designed to streamline wireless setups for live events, broadcast studios, houses of worship, and touring productions. This passive splitter takes a single antenna feed and divides it into two separate outputs, enabling two GLXD4R+ receivers to share one pair of antennas without compromising signal integrity. It is purpose-built to work seamlessly with Shure’s UA8-2.4-5.8 omnidirectional antennas and PA805DB-RSMA directional antennas, delivering dependable performance in challenging environments while reducing cabling, clutter, and setup time. Whether you’re managing a high-density 2.4 GHz environment or deploying a mixed-band configuration that leverages both 2.4 GHz and 5.8 GHz bands, the UA221DB-RSMA provides a dependable, clean solution for expanding your wireless footprint with minimal hardware changes. This splitter supports professional-level RF distribution with robust RSMA connections and impedance matching to preserve the clarity, range, and reliability your performances demand.

• Shared antenna capability: Enables two GLXD4R+ receivers to operate from a single high-quality antenna pair, simplifying cabling, reducing antenna clutter, and improving overall system reliability in venues of any size—from intimate theaters to large arenas—while preserving signal integrity across both receivers.
• Dual-band versatility: Supports the two primary frequency bands used in contemporary wireless systems—2.4 GHz for broad compatibility and 5.8 GHz for environments with higher device density—allowing quick adaptation to venue constraints, interference patterns, and regulatory considerations without swapping hardware.
• Secure RSMA connectivity and impedance management: Features robust RSMA interfaces designed to minimize insertion loss and maintain solid electrical contact, ensuring proper impedance matching and stable signal distribution from the antenna network to each receiver even in live performance conditions.
• Optimized for Shure antenna ecosystems: Specifically engineered to pair with UA8-2.4-5.8 omnidirectional antennas and PA805DB-RSMA directional antennas, delivering consistent beam patterns, polarization, and coverage that maximize range, clarity, and predictable RF behavior in fixed installations or on the road.
• Built for professional use: A rugged enclosure and reliable internal design withstand the rigors of touring, rehearsal spaces, and venue back stages, while maintaining minimal size and weight for easy integration into existing racks or flight cases without compromising performance.

Technical Details of UA221DB-RSMA

• Configuration: 1 input, 2 outputs RSMA dual-band passive antenna splitter
• Frequency range: Dual-band operation across 2.4 GHz and 5.8 GHz
• Connectors: 3 x RSMA RF connectors (1 input, 2 outputs)
• Impedance: 50 ohms (RF standard)
• Isolation: Designed to minimize interference between outputs
• Antenna compatibility: UA8-2.4-5.8 Omnidirectional antennas; PA805DB-RSMA directional antennas
• Construction: Rugged metal enclosure for live-event environments
• Recommended use: Pair with GLXD4R+ receivers to share a single antenna pair
• Power: Passive device; no external power required

How to install UA221DB-RSMA

• Plan your antenna layout to optimize coverage for both GLXD4R+ receivers, using UA8-2.4-5.8 omnidirectional or PA805DB-RSMA directional antennas as appropriate for the venue.
• Power down all connected wireless gear before making connections to prevent any RF transients or equipment damage during installation.
• Connect the UA221DB-RSMA input RSMA connector to your antenna signal source or distribution network with a high-quality RSMA cable, ensuring a firm, secure fit.
• Attach two RSMA output cables from the UA221DB-RSMA to the respective GLXD4R+ receivers, confirming the connectors are fully seated on both ends to avoid intermittent contact.
• Mount and align the antennas per your venue’s layout, optimizing for line-of-sight paths and minimizing potential interference from other RF sources.
• Power on the equipment and perform a quick RF scan to verify signal strength and stability on both receivers; adjust antenna orientation as needed for best performance.

Frequently asked questions

• Q: What is the UA221DB-RSMA used for? A: It is a dual-band passive antenna splitter that lets two GLXD4R+ receivers share a single pair of antennas, reducing cabling and simplifying wireless system setups.
• Q: Which antennas are compatible with this splitter? A: It is designed for use with Shure UA8-2.4-5.8 omnidirectional antennas and PA805DB-RSMA directional antennas, ensuring cohesive RF behavior within Shure ecosystems.
• Q: Does the splitter require external power? A: No. The UA221DB-RSMA is a passive device and operates without an external power source, relying on the RF signal from the antennas to feed both receivers.
• Q: Will using the UA221DB-RSMA affect signal quality? A: When installed and paired with compatible antennas, and with proper impedance matching and isolation, the splitter maintains RF integrity and provides reliable distribution to both receivers.
• Q: Is the UA221DB-RSMA suitable for touring or fixed installations? A: Yes. Its rugged, compact design is built to withstand the rigors of live performances and transportation, while delivering consistent performance in diverse environments.