Shure UA874WB Wideband Active Directional Antenna (470 to 900 MHz) - UA874WB

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Shure SKU: UA874WB
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Sale price$404.00 Regular price$566.00


Improve wireless signal reception for UHF wireless systems with the Shure UA874WB, a wideband active directional antenna with a frequency range extending from 470 to 900 MHz. The antenna uses a log periodic dipole array to produce a cardioid pattern towards the desired coverage area with greater rejection of RF signals outside the coverage area when compared to standard 1/2-wave omnidirectional antennas.

An integrated amplifier with four gain settings compensate for varying degrees of coaxial-cable signal loss.

The UA874WB can be stand-mounted, suspended from the ceiling, or wall-mounted using the integrated swivel adapter bracket.

  • Shure quality, ruggedness, and reliability
  • Compatible with Shure wireless receivers and antenna distribution systems that provide 10 to 15 VDC bias current
  • Four-position gain selector switch
  • Integrated threaded adapter mounts easily to microphone stands
  • Low-noise signal amplifier compensates for insertion loss in coaxial cable

Shure UA8 Specs

RF Frequency Range 470 to 900 MHz
Connector Type BNC, Female
Impedance 50 Ohms
Reception Pattern 70°, 3 dB Beam Width
Third-order Overload Intercept Point OIP3: >30 dBm
Antenna Gain 7.5 dBi, On Axis
Signal Gain Switchable
Active: +12 dB, +6 dB (±1 dB)
Passive: 0 dB, -6 dB (±1 dB)
RF Overload LED Threshold -5 dBm, RF Overload LED Does Not Operate for Passive Gain Settings
Power Requirements 10 to 15 VDC Bias from Coaxial Connection, 75 mA
Operating Temperature Range 0 to 145°F / -18 to 63°C
Storage Temperature Range -20 to 165°F / -29 to 74°C
Dimensions 14.1 x 12.4 x 1.4" / 359 x 316 x 36 mm
Weight 11.2 oz / 317 g


At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.

  • Most in-stock orders placed Monday-Friday before 1PM PST ship the same day. Orders placed after 1PM will ship the next day of business. General restrictions apply; please see our full shipping policy here.
  • We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.

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