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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
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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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)
Dimensions14.1 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"

Shure UA874US Reviews

It's essential

By Mac J
Rated 5 out of 5
Date: 2022-05-19

Much safer to have those puddles on my gigs.

Bought for a large sanctuary system experiencing signal drop

By Scott
Rated 5 out of 5
Date: 2022-03-28

I bought this antenna in hopes that it would solve a signal drop out problem in a church sanctuary. Installed just before Christmas services and we have not had a drop off in four months of use. Problem solved, and install was super easy- mounted it on a boom mic stand. Thanks B&H and Shure!

Makes a huge difference in signal strength!

By Scott
Rated 5 out of 5
Date: 2022-02-22

I had purchased 4 new Shure wireless units and racked them up in a church balcony system. First service with them and I had multiple drop outs and needed to solve the problem quickly. I ordered two of these from B&H and the arrived in time to get them installed before the next week's service. I have had 3 months of use and have had ZERO drop outs. I should have gone this route from the beginning. The antennas alone were just not enough to keep a solid signal connection. Super satisfied with the ease of install and the sleek look of these, but the real deal is the stellar performance.

Just what I needed

By CMS
Rated 5 out of 5
Date: 2018-05-31

Needed remote antennas for an important event.� Bought two of these.� Worked well.

Signal drop outs in the church sanctuary are gone!

By Scott
Rated 5 out of 5
Date: 2022-05-16

We purchased two of these to help remedy signal drop out from our new SHURE wireless systems. We had installed the mics in the same rack that the old ones came out of, but we had very low and even loss of total signal during our first two uses. After purchasing and installing these, we have had nothing but full signal and we could not be happier. These worked like magic!

Great remote antenna

By Greg
Rated 5 out of 5
Date: 2022-04-01

This antenna has solved our Shure BLX audio drop out issues. It is a bit pricey but has solved our random drop out issues which have plagued us for a while.

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YOUR RECENTLY VIEWED ITEMS

Are these made for permanent outdoor use?

Are these made for permanent outdoor use?
Asked by: Jerald
They can be mounted permanently or used in a mobile kit. They are large paddles and improve the pickup of the wireless frequency being broadcast by the mics. We have a set at our church permanently and I have a set in a Shure wireless 4 pack I rent for productions work.
Answered by: Argyl
Date published: 2022-06-29

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

Can I split the RF output of this to 2 receivers ...

Can I split the RF output of this to 2 receivers using a BNC-TEE, or do I need an RF splitter?
Asked by: Eric

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: 2022-04-05
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