Shure UA874WB UHF ACTIVE DIRECTIONAL ANTENNA RPL
Shure UA874WB UHF ACTIVE DIRECTIONAL ANTENNA RPL
- Brand: Shure
- MPN: UA874WB
- Part #: AUDSHU1007
- UPC:
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- Brand: Shure
- MPN: UA874WB
- Part #: AUDSHU1007
- UPC:
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Shure UA874WB UHF ACTIVE DIRECTIONAL ANTENNA RPL
- Brand: Shure
- MPN: UA874WB
- Part #: AUDSHU1007

Product URL: https://www.pbtech.com/au/product/AUDSHU1007/Shure-UA874WB-UHF-ACTIVE-DIRECTIONAL-ANTENNA-RPL
Features
Signal Precision & Enhanced Reception
The Shure UA874WB is a wideband active directional antenna engineered to significantly improve wireless signal reception. It features a log-periodic dipole array (LPDA) design that focuses its reception into a cardioid pattern, effectively concentrating on the desired coverage area while rejecting RF interference from unwanted directions-surpassing typical half-wave omnidirectional antennas in performance.
Integrated Amplification with Adjustable Gain
This antenna includes an integrated low-noise amplifier, which offers four selectable gain settings to counteract signal loss in coaxial cables. Specifically, it provides active gain options of +12 dB and +6 dB, as well as passive settings of 0 dB and -6 dB.
Broad Frequency Range & Technical Specs
Covering a broad frequency range of 470 to 900 MHz, the UA874WB is built for versatile UHF wireless applications. Additional technical specs include:
- Antenna gain: 7.5 dBi on-axis
- Reception beam width: 70° (3 dB)
- Impedance: 50 Ohms
- Connector: Female BNC
- OIP3 (Third-order intercept point): Greater than 30 dBm
Rugged, Flexible Mounting Design
Constructed with robust durability, the UA874WB is ideal for professional live-sound, broadcast, and installed-AV environments. Its integrated swivel bracket allows for versatile mounting options-stand-mounted, wall-mounted, or ceiling-suspended-for optimal positioning.
Power, Size & Environmental Specs
The antenna operates on 10 to 15 V DC, drawing approximately 75 mA of bias power via the coaxial connector. It withstands an operating temperature range from -18 °C to 63 °C (0-145 °F) and a storage range of -29 °C to 74 °C (-20-165 °F). Its physical dimensions are roughly 359 × 316 × 36 mm (14.1″ × 12.4″ × 1.4″), with a weight around 317 g (11.2 oz).
Specifications
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