Shure UA874 Active Directional Antenna

BH #SHUA874US • MFR #UA874US
Shure UA874 Active Directional Antenna
Key Features
  • Directs a Cardioid Pattern Toward Target
  • Four-Position Gain Selector Switch
  • Low-Noise Signal Amplifier
  • Makes Up for Coaxial Transmission Loss
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The Shure UA874 Active Directional Antenna uses a log periodic dipole array to offer enhanced reception when directed toward the desired coverage area. An integrated amplifier and four gain settings compensate for varying degrees of coaxial cable signal loss. The UA874 can be mounted on a microphone stand, suspended from the ceiling or mounted to a wall using the integrated swivel adapter bracket.
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$294.99
$50/mo. suggested payments
with 6 Mos. Promo Financing* 
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Shure UA874US Overview

The Shure UA874 Active Directional Antenna uses a log periodic dipole array to offer enhanced reception when directed toward the desired coverage area. An integrated amplifier and four gain settings compensate for varying degrees of coaxial cable signal loss. The UA874 can be mounted on a microphone stand, suspended from the ceiling or mounted to a wall using the integrated swivel adapter bracket.

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
UPC: 042406256308

Shure UA874US Specs

Connector TypeBNC (female)
Impedance50 ohms
Reception Pattern70° (3 dB beam width)
Overload Intercept Point>30 dBm
Antenna Gain7.5 dBi (on axis)
Signal GainSwitchable
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 Requirements10 - 15 V DC bias from coaxial connection (75 mA)
Operating Temperature Range0 to 145°F (-18 to 63°C)
Storage Temperature Range-20 to 165°F (-29 to 74°C)
Dimensions (WxHxD)14.1 x 12.4 x 1.4" (359 x 316 x 36 mm)
Weight11.2 oz (317 g)
Packaging Info
Package Weight2.4 lb
Box Dimensions (LxWxH)18.3 x 14.6 x 3.7"
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If I am placing my receiving units relatively ...

If I am placing my receiving units relatively near the transmitters and using a snake box to the mixer is there a need for this antenna? It was included in my quote - possibly unnecessarily. Thanks.
Asked by: Anonymous
No, in the situation as you describe the antenna is not necessary.
Answered by: John
Date published: 2019-08-21

question

how many microphones can connect too this ?
Asked by: Anonymous
This antenna can receive signal from any number of active transmitters within range (based on the antenna's position and gain settings) that are transmitting between 470698 MHz. To clarify, this item's purpose in your wireless setup is to act as an extension of your receivers which, when properly placed and configured according to your application, can improve your transmitter(s) signal reception. However, it should be noted that your receivers are the devices that are actually connecting (or syncing) with your transmitters to interpret the captured signal of each active wireless microphone or bodypack. Thus, any limitations in number of transmitters you are able to use simultaneously would be based on the capabilities and coordination of your receivers rather than the number or type of antennas you are using.
Answered by: Product Rep Shure Expert
Date published: 2020-02-22

question

do I need one or tow of these?
Asked by: Anonymous
This would depend on whether your specific application calls for a diversity or non-diversity wireless system and what kind of coverage is needed. In many circumstances however, using two is most common.
Answered by: Product Rep Shure Expert
Date published: 2018-08-28
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