Shure UA844+SWB/LC-TA Wideband Antenna Distribution System & No Antenna Cables (470 to 960 MHz) (TAA-Compliant)

Product Overview

The Shure UA844+SWB/LC-TA is a wideband UHF active antenna distribution system covering 470–960 MHz, designed to expand Shure wireless microphone systems by splitting one pair of antennas across up to five wireless receivers. As a TAA-compliant unit, it qualifies for government and institutional procurement. The LC (Limited Cable) configuration ships with a minimal cable kit, making it the preferred option for integrators who supply their own cable infrastructure or are deploying the unit into a pre-wired rack environment.

Product Description

The UA844+SWB replaces the legacy UA844 series and provides active RF amplification to compensate for insertion loss introduced by the antenna splitting architecture. A single UA844+ unit supports up to four receivers via direct outputs plus one cascade port, allowing a second UA844+ unit to extend coverage to a maximum of five units in a two-tier configuration — supporting up to 20 wireless receivers from a single antenna pair. The unit is 1U rack-mountable and includes front-mounting antenna hardware and an external power supply. Its 50 Ω BNC input and output connectors maintain compatibility with standard Shure RF cabling infrastructure. The 470–960 MHz wideband coverage spans all current Shure UHF wireless system frequency bands, eliminating the need for frequency-specific splitters in multi-band deployments. For the version that includes a full cable kit, see also the Shure UA844+SWB-TA.

Key Features

• Wideband 470–960 MHz Coverage — Operates across all current Shure UHF wireless frequency bands, eliminating the need for separate frequency-specific distribution units in mixed-band wireless deployments.
• Active Antenna Splitter — Four-way active antenna splitter with built-in RF amplification compensates for signal loss introduced by splitting, preserving adequate signal level at each receiver output.
• Cascade Port for System Expansion — Dedicated cascade output connects a second UA844+ unit, allowing up to five units in a two-tiered configuration to support large multi-receiver wireless installations.
• DC Power Distribution — Supplies 14–18 V DC to connected receivers via four power output ports, simplifying rack wiring by reducing individual power supply requirements.
• 1U Rack-Mount Form Factor — Standard 1U rack-mount profile (45 x 483 x 172 mm) integrates into commercial AV and broadcast rack systems with front-mounting antenna hardware included.
• LC Cable Configuration — Ships with two 22-inch BNC cables (vs. ten in the standard model), suited for AV integrators supplying their own cable infrastructure or deploying into pre-wired racks.
• TAA-Compliant — Meets Trade Agreements Act requirements for federal, state, and local government procurement programs.

Typical Applications

• Broadcast studio
• Auditorium
• House of worship
• Government space
• Multi-purpose room
• All-hands room
• Conference room

Technical Specifications

Frequently Asked Questions

How many wireless receivers can the UA844+SWB/LC-TA support?
A single unit provides four active RF outputs plus one cascade port. When cascaded with additional UA844+ units in a two-tier configuration, a maximum of five units can support up to 20 wireless receivers from a single antenna pair.

What is the difference between the UA844+SWB/LC-TA and the UA844+SWB-TA?
Both units are identical in RF performance and specifications. The /LC variant includes two 22-inch BNC cables, whereas the standard UA844+SWB-TA ships with ten 22-inch BNC cables and four locking DC power cords for ULXD4 receivers. Choose the /LC version when deploying into an environment with existing cable infrastructure.

Is the UA844+SWB/LC-TA compatible with all Shure UHF wireless systems?
Yes. The 470–960 MHz wideband frequency range covers all current Shure UHF wireless system bands, including QLX-D, ULX-D, Axient Digital, and SLX-D.

Does the unit supply DC power to connected receivers?
Yes. The UA844+SWB provides four DC power output ports, each supplying 14–18 V DC, with a combined maximum current of 2.5 A across all four ports.

Can the UA844+SWB be used with active directional antennas such as the Shure UA874?
Yes. The unit supports active antennas via 15 V DC bias voltage on both RF inputs (150 mA maximum per port), which is compatible with the Shure UA874 and similar active directional antennas.