Shure UA874US UHF Active Directional Antenna - 470-698 MHz

The UA874US antenna delivers improved wireless signal reception for UHF wireless systems. Features include rejection of RF signals outside the coverage area and an integrated amplifier with four gain settings.

The UA874 can be stand-mounted, suspended from the ceiling, or wall-mounted using the included swivel adapter bracket.

Features* Low-noise signal amplifier compensates for insertion loss in coaxial cable

* Compatible with Shure wireless receivers and antenna distribution systems that provide 1015 V DC bias

* Integrated threaded adapter mounts easily to microphone stands

* Four-position gain selector switch

* Shure quality, ruggedness, and reliability

SpecificationsConnector Type: BNC, Female

Impedance: 50 ohms

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

Reception Pattern: 70 degrees

Third-order Intercept Point: 30 dBm

Antenna Gain (On Axis): 7.5 dBi

Signal Gain +/- 1dB: Switchable

Active: +12 dB, +6 dB

Passive: 0 dB, -6 dB

RF Overload LED Threshold: -5 dBm

With a coverage area of 470-698MHz, it works with the following Shure UHF wireless lines:

- SLX-D

- QLX-D

- ULX-D

- Axient Digital

- UA844/SWB Antenna Distribution Units

*Note: The antenna will not operate without 10-15 V DC bias. This is required even at -6 dB and 0 dB ("passive") gain settings. Not for use with In-Ear Monitor Systems and their associated antenna combiners.