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Shure – UA874 UHF Active Directional Antenna

Shure

Active directional UHF antenna with integrated amplifier for improved wireless signal reception.

SKU: SHUUA874 UHF Categories: , , , ,
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Description

The UA874 replaces the UA870. UA874 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 ½ wave omnidirectional antennas. An integrated amplifier with four gain settings compensate 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.

Features

  • Compatible with all Shure wireless receivers and antenna distribution systems that provide 12V DC bias
  • Four-position gain selector switch
  • Low-noise signal amplifier compensates for transmission loss in coaxial cable
  • Integrated threaded adapter mounts easily to microphones stands

Additional information

Weight 0.317 kg
Connector Type

BNC, Female

Impedance

50 Ω

Power Requirements

10 to 15 V DC bias from coaxial connection, 75 mA

RF Frequency Range

UA874US 470–698 MHz UA874E 470–790 MHz UA874WB 470–900 MHz UA874Z16 1240–1260 MHz UA874Z17 1492–1525 MHz UA874Z18 1785–1805 MHz UA874X 925–952 MHz UA874XA 902–960 MHz

Reception Pattern

3 dB Beam Width 70 degrees

Third-order Overload Intercept Point (OIP3)

>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

UA874 316 x 359 x 36 mm (H x W x D) UA874X 224 x 234 x 36 mm (H x W x D) UA874XA 224 x 234 x 36 mm (H x W x D) UA874Z 224 x 234 x 36 mm (H x W x D)

Weight

UA874 317 g (11.2 oz.) UA874X 213 g (7.5 oz.) UA874XA 213 g (7.5 oz.) UA874Z 213 g (7.5 oz.)

Operating Temperature Range

−18°C (0°F) to 63°C (145°F)

Storage Temperature Range

−29°C (-20°F) to 74°C (165°F)

Downloads

Data Sheet Download