Shure
Shure UA845UWB Antenna Distribution System - QLX-D, ULX, SLX, BLX4R
★★★★★
Shure UA845UWB antenna distribution system feeds RF and power to up to five wireless receivers from one antenna pair.
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Overview
Key Features
The Shure Model UA845UWB Antenna Distribution System allows four receivers to use the same set of antennas.
The cascade connectors allow connections to a fifth receiver or a second UA845UWB.
There are also power connectors for distributing power to each receiver.
RF signal amplification compensates for insertion loss from splitting the antenna input to multiple outputs.
A button on the front panel switches between one of five frequency bands from 174 to 1805MHz.
5 selectable frequency ranges (band selection on the front panel): 174 – 216 MHz / 470 – 960 MHz / 1240 – 1260 MHz / 1492 – 1525 MHz / 1785 – 1805 MHz.
Antenna A and B input overload LED indicators / five-way RF signal output.
Support Axient Digital, QLX-D, ULX, ULX-D, SLX, and BLX (BLX4R only) receivers.
Front-mounting antenna hardware, rack-mounting hardware and an internal power supply.
4 DC power feeds for receivers (15V, 2.5A max) / DC outputs for antenna bias (12V, 300mA max).
Specifications
Brand
Shure
Model
UA845UWB
Type
Antenna Distribution System
Receiver Support
Up to 4 (5 with cascade)
Frequency Bands
174–216 MHz, 470–960 MHz, 1240–1260 MHz, 1492–1525 MHz, 1785–1805 MHz
RF Amplification
Yes (compensates for insertion loss)
Power Distribution
DC power to each receiver
Cascade Connectors
Yes (fifth receiver or second UA845UWB)
Compatible Systems
Axient Digital, QLX-D, ULX, ULX-D, SLX, BLX4R
Pros & Cons
👍 Pros
- Supports up to four receivers from one antenna pair, reducing antenna clutter
- Cascade connectors allow expansion to a fifth receiver or daisy-chaining a second unit
- Built-in RF amplification compensates for signal splitting losses
- DC power distribution eliminates the need for individual power supplies per receiver
- Five selectable frequency bands provide ultra-wideband coverage
👎 Cons
- Premium price point adds significant cost to multi-receiver wireless setups
- BLX compatibility is limited to the BLX4R model only, excluding other BLX receivers
- Rack-mount installation requires planning and dedicated rack space
- Additional antennas and cabling must be purchased separately
Frequently Asked Questions
How many wireless receivers can the Shure UA845UWB support?
It directly supports up to four receivers from a single pair of antennas, and cascade connectors allow you to add a fifth receiver or daisy-chain a second UA845UWB unit for even more.
What Shure wireless systems are compatible with the UA845UWB?
It works with Axient Digital, QLX-D, ULX, ULX-D, SLX, and BLX (BLX4R model only) receivers.
Does the UA845UWB provide power to connected receivers?
Yes, it includes power distribution connectors that can supply DC power to each connected receiver, reducing the number of individual power supplies needed in your rack.
What frequency range does the UA845UWB cover?
It covers five selectable frequency ranges: 174–216 MHz, 470–960 MHz, 1240–1260 MHz, 1492–1525 MHz, and 1785–1805 MHz, giving it ultra-wideband coverage.
Does the UA845UWB compensate for signal loss?
Yes, it includes built-in RF signal amplification that compensates for insertion loss caused by splitting the antenna signal across multiple receivers.
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