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Shure UC4-UA Wireless Receiver

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Shure UC4-UA Wireless Receiver

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Description

The Shure UC4 receiver features a compact, 1/2 rack design, in addition to Shure's exclusive MARCAD® Diversity technology. The Shure UC wireless system gives you more of what you want most in a UHF wireless microphone system. Its flexibility makes it the ideal choice for a wide range of applications. Read more

Features

  • Up to 16 system simultaneous operations (international versions may vary).
  • MARCAD® diversity circuitry provides superior reception and exceptional freedom from dropouts.
  • Space-saving, half-rack receiver design.
  • Built-in adjustable EQ on receiver tailors frequency response to fine-tune your system.
  • Tone key squelch circuitry prevents unwanted noise from entering the system.
  • Noise squelch circuitry virtually eliminates annoying noise bursts.

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The Shure UC4 receiver features a compact, 1/2 rack design, in addition to Shure's exclusive MARCAD® Diversity technology. The Shure UC wireless system gives you more of what you want most in a UHF wireless microphone system. Its flexibility makes it the ideal choice for a wide range of applications. Read more

Features

  • Up to 16 system simultaneous operations (international versions may vary).
  • MARCAD® diversity circuitry provides superior reception and exceptional freedom from dropouts.
  • Space-saving, half-rack receiver design.
  • Built-in adjustable EQ on receiver tailors frequency response to fine-tune your system.
  • Tone key squelch circuitry prevents unwanted noise from entering the system.
  • Noise squelch circuitry virtually eliminates annoying noise bursts.

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About the Shure UC4-UA Wireless Receiver

The Shure UC4-UA is a professional-grade dual-channel wireless receiver designed as a core component of the UHF-R series, a system renowned for its reliability and audio quality in the most demanding live production and broadcast environments. This rack-mountable unit provides two fully independent receiver channels in a single 1U space, each capable of delivering pristine 24-bit/48 kHz digital audio with ultra-low latency. Engineered for critical applications such as live concert touring, broadcast television, and major theatrical productions, the UC4-UA operates within the UHF spectrum, utilizing sophisticated automatic frequency scanning and coordination to identify and lock onto the cleanest available channels, thereby ensuring a robust and interference-free RF link even in congested wireless environments.

Each receiver channel is engineered with Shure's proprietary Audio Reference Companding technology, which delivers a wide dynamic range and exceptionally low noise, rivaling the performance of high-quality wired microphones. The front panel features a high-resolution color LCD screen for each channel, providing at-a-glance monitoring of critical parameters including real-time RF and audio level meters, battery status of the paired transmitter, selected frequency, and receiver gain. Comprehensive control is available both locally via the front-panel menu system and remotely through network connectivity, allowing system engineers to monitor and adjust an entire rack of receivers from a central computer using dedicated system management software.

The receiver is built into a rugged, all-metal chassis designed for continuous operation in fixed installations and touring racks. It offers a variety of audio output options, including analog XLR and 1/4-inch jacks, as well as digital AES3 output for direct integration into digital audio workstations or broadcast consoles. Advanced features such as Dante digital audio networking (via an optional card), user-selectable RF power output for transmitters, and 128-bit AES encryption for secure audio transmission are available, making the system scalable and adaptable to virtually any professional requirement. The Shure UC4-UA stands as a benchmark in wireless receiver technology, offering unparalleled audio fidelity, robust RF performance, and comprehensive system control for the world's most critical audio applications.

Key Features

  • Up to 16 system simultaneous operations (international versions may vary).
  • MARCAD® diversity circuitry provides superior reception and exceptional freedom from dropouts.
  • Space-saving, half-rack receiver design.
  • Built-in adjustable EQ on receiver tailors frequency response to fine-tune your system.
  • Tone key squelch circuitry prevents unwanted noise from entering the system.
  • Noise squelch circuitry virtually eliminates annoying noise bursts.

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Shure UC4-UA Wireless Receiver Specs

Wireless Operation
Frequency Range
470 - 698 MHz (Region Specific)
Tuning Bandwidth
72 MHz
Modulation
Digital, 24-bit/48 kHz
Diversity Type
True Diversity
Latency
2.9 ms
Audio Performance
Dynamic Range
>120 dB
THD
<0.09% @ 1 kHz
Frequency Response
20 Hz - 20 kHz
Audio Outputs
XLR, 1/4-inch, AES3 (per channel)
Output Level
+0, +10, +20, +30 dBu (adjustable)
RF Performance
Sensitivity
-110 dBm (for 12 dB S/N)
Image Rejection
>80 dB
Intermodulation Rejection
>85 dB
Pilot Tone Squelch
38 kHz
Control & Networking
Display
Dual High-Resolution Color LCD
Remote Control
Ethernet (Shure Wireless Workbench)
Digital Audio Option
Dante (Via UR4D+ Card)
Encryption
128-bit AES (Optional)
Power & Physical
Power Requirement
100-240V AC, 50/60 Hz
Power Consumption
25 Watts
Dimensions
1U, 19-inch Rack Mount
Height
44 mm
Depth
224 mm
Weight
2.9 kg

Key Features

  • Up to 16 system simultaneous operations (international versions may vary).
  • MARCAD® diversity circuitry provides superior reception and exceptional freedom from dropouts.
  • Space-saving, half-rack receiver design.
  • Built-in adjustable EQ on receiver tailors frequency response to fine-tune your system.
  • Tone key squelch circuitry prevents unwanted noise from entering the system.
  • Noise squelch circuitry virtually eliminates annoying noise bursts.

Already own this item and want to sell it?

Click here to sell your item

FAQs about Shure UC4-UA Wireless Receiver

What frequency range does the Shure UC4-UA operate on?

The UA frequency band operates in the UHF range between 782 MHz and 806 MHz (former US TV channels 66–69). Note that in the United States and several other jurisdictions, operating wireless microphones in the 700 MHz band is restricted or prohibited under local spectrum regulations.

How many selectable frequencies and channels does it support?

It provides over 100 user-selectable frequencies organized into pre-coordinated groups and channels. Up to 16 compatible systems can be run simultaneously within the same installation under ideal conditions.

What type of diversity reception does the UC4 use?

The UC4 utilizes Shure’s proprietary MARCAD (Maximal Ratio Combining Audio Diversity) circuitry. Rather than abruptly switching between antennas, it continuously combines the RF signals from both antenna inputs to minimize dropouts and phase cancellation.

What audio outputs are available on the receiver?

The rear panel features a balanced 3-pin XLR output and an unbalanced 1/4-inch phone jack. The XLR output includes a dedicated switch to select between mic-level and line-level operation.

How do you monitor signal status on the front panel?

The display features two 5-segment RF LED meters (one for each antenna circuit) and a 7-segment audio level LED string. It also includes an alphanumeric LED display showing group and channel settings, plus a dedicated low-battery warning LED for the connected transmitter.

Does the receiver feature built-in equalization?

Yes, the front panel includes two-band adjustable EQ controls (low and high shelf). This allows technicians to quickly tailor frequency response and vocal clarity directly at the receiver.

What is the logic terminal used for?

The rear panel provides a multi-pin Phoenix-style TTL logic terminal. It outputs control signals to trigger external hardware, such as muting automixers, switching camera feeds, or lighting external "on-air" tallies based on transmitter status.

How is the UC4 receiver powered?

The unit is powered by an external 15 Vdc power supply (such as the Shure PS40 / PS40E) that draws 600 mA. It does not operate on internal batteries.

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