Shure UA844+SWB-2UA874US Antenna Distribution System

This Shure Package includes one UA844+SWB 5-Way Active Antenna Splitter Unit and two UA874 Active Directional Antenna.

The UA844+SWB from Shure is an antenna distribution system allowing you to expand wireless microphone systems by splitting one pair of antennas to multiple receivers. While insertion loss typically results from splitting signal power to multiple outputs, this unit compensates by amplifying RF signals. One UA844+SWB system can support five wireless receivers and a maximum of five total UA844+SWB systems can be used in a two-tired configuration.

Shure's UA874 Active Directional Antenna uses a log periodic dipole array to form a cardioid receiving pattern toward the desired coverage area, achieving greater rejection of RF signals outside the area than standard ½-wave omnidirectional antennas. An integrated amplifier with 4 switchable (2 active/2 passive) gain settings compensates for varying degrees of coaxial cable signal loss. The UA874 can be mounted on a mic stand with the integrated threaded adapter. Contact your Sales Professional for more information on other possible mounting options.

• UA844+SWB 5-Way Active Splitter and Power Unit:
  • Five-way RF signal output
  • Support QLX-D®, ULX®, ULX-D®, SLX®, and BLX® (BLX4R only) receivers
  • Front-mounting antenna hardware
  • Rack-mounting hardware
  • 4 DC power feeds and for receivers (15V, 2.5A max)
  • DC outputs for antenna bias (12V, 300mA max)
• UA874 Active Directional Antenna:
  • Compatible with all Shure wireless receivers and antenna distribution systems that provide 12 V DC bias
  • 4-position gain selector switch
  • Low-noise signal amplifier that compensates for transmission loss in coaxial cable
  • Integrated threaded adapter that mounts easily to microphones stands
  • Legendary Shure build quality and reliability

• UA844+SWB Specifications:
  • Power Requirements: 14 to 18 V DC
  • DC Output: 14 to 18 V DC (x4)
  • Output Current (Combined total from all DC outputs): 2.5 A, maximum
  • Operating Temperature Range: -18°C (0°F) to 63°C (145°F)
  • Connector Type: BNC
  • RF Frequency Range (model dependent): 174 to 1805 MHz
  • Bias Voltage: 15 V DC (150 mA, maximum) (x2)
  • Impedance: 50 Ω
  • RF Frequency Range (model dependent): 174 to 1805 MHz
  • Output Intercept Point: 21 dBm, typical
  • Connector Type: BNC
  • Impedance: 50 Ω
  • Output Connector Isolation: 30 dB, typical
  • Gain:
    • Input to any output port (Unused ports terminated in 50 Ω)
    • -1 to +1 dB
  • Dimensions: 45 x 483 x 172 mm (H x W x D)
  • Net Weight: 3.6 lbs
• UA874 Specifications:
  • RF Frequency Range: 470-698 MHz
  • Connector Type: BNC Female
  • Impedance: 50 Ohms
  • Power Requirements: 10 to 15 V DC bias from coaxial connection, 75 mA
  • Reception Pattern: 70°
  • Third-order Intercept Point: >30 dBm
  • Antenna Gain (On Axis): 7.5 dBi
  • Signal Gain +/- 1dB: Switchable
  • Active: +12 dB, +6 dB
  • Passive: 0dB, -6 dB
  • RF Overload LED Threshold: -5 dBm
  • Dimensions (H x W x D): 12.44" x 14.13" x 1.4"
  • Weight: 11.2 oz.