Shure UA844+SWB/LC Antenna Power Distribution System, 470-952 MHz

Shure UA844+SWB/LC Antenna Power Distribution System, 470-952 MHz


End Date: Tuesday Sep-11-2018 11:25:32 PDT
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The Shure UA844+SWB/LC is a five-way active antenna splitter and power distribution system for QLX-D®, ULX®, ULX-D®, SLX®, and BLX® (BLX4R only) receivers.

NOTE: This version does NOT include the antenna cables, hardware for receiver connnections or the locking/non-locking DC power cables for receiver connections.  

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 UA844+SWB/LC replaces the discontinued model UA844SWB/LC.


  • Front-mounting antenna hardware
  • Rack-mounting hardware
  • External power supply


  • 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(H x W x D):  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): -0.5to 3.0 dB