Shure UA874US
Active Directional Antenna with Integrated Amplifier (470-698MHz)


Now you can experience improved wireless reception with Shure's UA874 Antenna. It's a UHF antenna that 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.

Shure UA874 Features:

  • 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

Shure 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): 316 x 359 x 36mm
  • Weight: 11.2 oz. (317 g)

Note: Additional information available by clicking on the "Shure UA874 User Manual" located under the "DOCUMENTATION" tab above.

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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