Shure UA844+SWB – UHF Wideband Antenna Distribution System

Product Overview

The Shure UA844+SWB is a 5-way active UHF wideband antenna distribution system covering 470 to 960 MHz, designed for commercial AV installations deploying multiple Shure wireless microphone receivers in a single rack. It splits one pair of antenna inputs across up to five receiver outputs while simultaneously delivering DC power to each receiver, eliminating the need for individual power supplies at each rack position. Compatible with Shure QLX-D, ULX-D, ULX, SLX, and BLX4R wireless systems, the UA844+SWB is the standard infrastructure component for scalable wireless microphone deployments in auditoriums, government spaces, houses of worship, and commercial conference environments. A cascade port allows chaining additional units for larger systems.

Product Description

The UA844+SWB occupies a standard 1RU rack space and is engineered to serve as the RF distribution backbone for multi-channel wireless microphone systems in commercial AV integration projects. Its wideband 470–960 MHz coverage spans the frequency ranges of current and previous-generation Shure wireless systems, providing long-term compatibility as systems are upgraded or expanded. The active splitter design compensates for cable and splitting losses, maintaining signal integrity across all output ports. BNC connectors on both antenna inputs and all five receiver outputs align with professional installation standards and support the use of remote antennas positioned for optimal coverage in challenging RF environments. The integrated DC power distribution, outputting 14–18 V DC per port with a combined 2.5 A maximum, simplifies rack wiring and reduces the number of power supply runs required in structured AV installations. For compatible rack-mount wireless receivers, see the Shure ULXD4Q Quad-Channel Wireless Receiver at Creation Networks.

Key Features

• 5-Way Active Antenna Splitting — Distributes a single pair of antennas to up to five wireless receivers simultaneously, reducing antenna runs and simplifying installation in multi-channel wireless systems.
• UHF Wideband Coverage (470–960 MHz) — Covers the full frequency range of current and legacy Shure wireless systems, providing broad system compatibility in commercial AV deployments.
• Integrated DC Power Distribution — Supplies 14–18 V DC to up to four receivers (combined max 2.5 A), consolidating power infrastructure and reducing rack cabling complexity.
• Cascade Port — Enables chaining of additional UA844+ units to scale antenna distribution beyond five channels in large-venue and multi-zone installations.
• 50-Ohm BNC Connectors — Standard professional RF impedance on all antenna and receiver ports, compatible with coaxial cable infrastructure in structured AV systems.
• 30 dB Output Port Isolation (typical) — Maintains signal separation between receiver outputs, preventing inter-receiver interference in densely packed rack configurations.
• 1RU Rack-Mount Form Factor — Standard rack height integrates cleanly into AV equipment racks in any commercial installation.
• Bias Voltage Output — Provides 15 V DC bias on two ports to power active antennas such as the Shure UA874, UA870, and UA830 without a separate power injector.

Typical Applications

• Boardroom and executive conference room wireless microphone infrastructure
• House of worship multi-channel wireless system installations
• Government and municipal meeting space AV deployments
• Auditorium and performing arts center wireless distribution
• Broadcast studio wireless microphone rack systems
• All-hands room and town hall multi-channel wireless installations
• Multi-purpose and training room scalable wireless AV infrastructure

Technical Specifications

Frequently Asked Questions

Which Shure wireless systems are compatible with the UA844+SWB?

The UA844+SWB is compatible with Shure QLX-D, ULX-D, ULX, SLX, and BLX4R wireless receivers. Its 470–960 MHz wideband coverage spans the operating frequency ranges of all current and previous-generation Shure UHF wireless systems.

How many receivers can a single UA844+SWB support?

One UA844+SWB provides five receiver output ports. Additional units can be cascaded via the built-in cascade port to support larger multi-channel installations without adding separate antenna runs.

Does the UA844+SWB power the connected receivers?

Yes. The unit provides 14–18 V DC on up to four receiver ports (combined maximum 2.5 A), which can eliminate the need for individual receiver power supplies in many rack configurations. Verify the current draw of your specific receivers before relying on this for all ports simultaneously.

Can I use active remote antennas with the UA844+SWB?

Yes. The UA844+SWB provides 15 V DC bias voltage on two of its antenna input ports, enabling use of Shure active antennas such as the UA874, UA870, and UA830 without a separate power injector.

What cable type is required for the antenna connections?

The UA844+SWB uses BNC connectors on all antenna and receiver ports. Standard 50-ohm coaxial cable (RG8X or RG58 for short runs; low-loss coaxial for longer remote antenna installations) is appropriate. Cable loss increases with run length at UHF frequencies, so keep antenna cable runs as short as practical.