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Product Highlights
  • Directional Antenna
  • Compatible with U4S/U4D/ULXP/ULXS/UR4S/UR4D Receivers & UA844/UA845 Antenna Distribution Systems
Shure UHF Active Directional Antenna Shure UHF Active Directional Antenna
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This product will be Special Ordered just for you from the manufacturer. We do not stock this item due to its uniqueness or import schedule. Special Order items are Final Sale, see our Return Policy for details.
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Overview

Experience improved wireless reception with the UA874. This UHF antenna uses a log periodic dipole array to produce a cardioid 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 four gain settings compensates for varying degrees of coaxial cable signal loss. The UA874 can be stand-mounted, suspended from the ceiling, or wall-mounted using the included swivel adapter bracket.

Key Features:

  • Compatible with all Shure wireless receivers and antenna distribution systems that provide 12 V DC bias
  • Four-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

Reviews

Product Specifications

Shure UHF Active Directional Antenna

Connector Type BNC, Female
Impedance 50 Ω 
Power Requirements  10 to 15 V DC bias from coaxial connection, 75 mA
RF Frequency Range  470–698 MHz 
Reception Pattern 3 dB Beam Width
70 degrees
Third-order Overload Intercept Point  >30 dBm 
Antenna Gain  On Axis: 7.5dBi
Signal Gain  ±1 dB, Switchable
+12 dB, +6 dB, 0 dB, −6 dB
RF Overload LED Threshold  −5 dBm
(RF overload LED does not operate for passive gain settings)
Dimensions (H x W x D)  316 x 359 x 36 mm (12.4 x 14.1 x 1.4")
Weight 317 g (11.2 oz)

Questions & Answers

Shure UHF Active Directional Antenna

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