Shure UA844+SWB
5-Way Active Antenna Splitter and Power for QLX-D, ULX, ULX-D, SLX, and BLX4R Receivers (470-952MHz)


The Shure UA844+SWB is a five-way active antenna splitter and power distribution system for QLX-D®, ULX®, ULX-D®, SLX®, and BLX® (BLX4R only) receivers, 470-952 MHz.

The Shure Model UA844 is a UHF antenna distribution system that allows the expansion of wireless microphone systems by splitting one pair of antennas to multiple receivers. It also amplifies RF signals to compensate for insertion loss that results from splitting signal power to multiple outlets. A single UA844 system can support up to four wireless receivers. A maximum of five systems may be used with a two-tiered configuration (see user guide).

The UA844SWB replaces the discontinued model UA844US.


  • Front-mounting antenna hardware
  • Rack-mounting hardware
  • External power supply
  • Antenna cables and hardware for receiver connections
  • Locking and non-locking DC power cables for receiver connections

Shure UA844+SWB Features:

  • Wideband UHF (470-952 MHz)
  • Five-way RF signal output
  • For QLX-D, ULX, ULX-D, SLX and BLX (BLX4R only) receivers

Shure UA844+SWB Specifications:

  • Power Requirements 14 to 18V DC
  • DC Output 14 to 18V DC (x4)
  • Output Current Combined total from all DC outputs: 2.5A, maximum
  • Operating Temperature Range: -7°C (20°F) to 49°C (120°F)
  • Dimensions (HxWxD): 1.77" x 19.01" x 6.77"
  • Net Weight: 3.6 lbs

RF Input:

  • Connector Type: BNC
  • RF Frequency Range: 470 to 952 MHz
  • Bias Voltage: 12V DC (150 mA max.) (x2)
  • Impedance: 50 Ohms

RF Output:

  • RF Frequency Range: 470 to 952 MHz
  • Output Intercept Point (OIP3): 21 dBm, typical
  • Connector Type: BNC
  • Impedance: 50 Ohms
  • Output Connector Isolation: 30 dB, typical
  • Gain Input to any output port (Unused ports terminated in 50 Ohms): -0.5 to 3.0 dB

Consumer Alert
Please be aware that certain systems or transmitters operating in the 617-652MHz or 663-698MHz frequency ranges are no longer in compliance with recent regulations set forth by the Federal Communications Commission (FCC). Contact our Sales Pros at 800-356-5844 for help choosing a compliant wireless system that fits your needs and to learn about available trade-in rebates. Details on current wireless regulations are available at

WARNING: Cancer and Reproductive Harm -

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