Shure UA844+V/LC

Overview

The Shure UA844+V/LC is a VHF antenna distribution system designed to efficiently share a single pair of antennas across up to five QLX-D or ULX-D wireless microphone receivers operating in the 174–216 MHz range. By amplifying the RF signal internally, it compensates for the signal loss that typically occurs when splitting antenna feeds, ensuring each receiver maintains a strong and clear connection. This system also simplifies power and cable management with integrated DC outputs, making it a practical choice for professional audio setups in corporate events, theaters, and houses of worship.

Key features

• Splits one antenna pair to feed multiple receivers without degrading signal quality, supporting up to five QLX-D or ULX-D units.
• Internal amplifier delivers gain between –1 and +1 dB and provides 30 dB of output isolation to preserve signal integrity across all outputs.
• Four rear-panel DC outputs supply 15 volts with a combined current of 2.5 amps, powering connected receivers directly and reducing cable clutter.
• Two additional 12-volt DC bias outputs provide 300 mA each for active antennas, supporting a variety of antenna configurations.
• Front-panel BNC connectors and included rack ears enable straightforward installation and flexible mounting options in professional racks.
• Supports cascading up to five units in a two-tier layout, allowing scalable expansion to systems with up to twenty channels without compromising RF isolation.

Key specs

• Frequency range: 174–216 MHz (VHF band)
• Gain: –1 to +1 dB
• Output isolation: 30 dB
• DC output power: 15 V, 2.5 A total across four outputs
• DC bias outputs: 12 V, 300 mA each (two outputs)
• Connectors: Front-panel BNC for antenna inputs and outputs
• Maximum receivers supported per unit: 5
• Cascade capability: Up to 5 units in two-tier configuration

Connectivity and compatibility

This antenna distribution system is tailored for use with Shure QLX-D and ULX-D wireless microphone receivers, ensuring seamless integration within these ecosystems. The front-panel BNC connectors provide reliable RF connections for antennas and receivers, while the DC outputs power receivers and active antennas directly, reducing the need for additional power supplies. Its compatibility with multiple receivers and cascading capability makes it suitable for complex audio setups requiring clean and stable wireless microphone signals.

Installation and setup

The UA844+V/LC is designed for easy installation in professional audio racks, with included rack ears and front-panel antenna connectors that simplify mounting and cable management. The integrated power outputs reduce the number of cables needed, streamlining the setup process. Whether you are outfitting a conference room, theater, or house of worship, this system helps maintain a tidy and efficient rack environment while delivering consistent RF performance.

Ideal uses and environments

This antenna distribution system fits well in environments where multiple wireless microphone receivers operate simultaneously, such as corporate events, live theater productions, houses of worship, and broadcast studios. Its ability to maintain strong signal quality across multiple receivers and support scalable expansion makes it a strong choice for audio engineers managing complex wireless setups who need reliable performance and simplified power and cable management.

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