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Shure UA82OJ 578-638 MHz Antenna

$49.95

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Shure UA82OJ 578-638 MHz Antenna

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Description

Introducing the Shure UA820J 1/2 Wave Omnidirectional Receiver Antenna, designed to deliver outstanding performance and reliable signal reception for your Shure wireless bodypacks. Operating in the 578-638 MHz frequency range, this antenna is ideal for use with popular Shure systems such as UHF-R, ULX, and SLX receivers. Whether you're a professional musician, sound engineer, or event organizer, the UA820J ensures that your wireless equipment functions at its best, providing clear and uninterrupted audio reception. Read more

Features

  • 1/2 Wave Omnidirectional Antenna for UR4S+, UR4D
  • Receivers, P9T Transmitter, (578 638 MHz)
  • With a history of audio innovation that began in 1925
  • Shure continues to set the worldwide industry standard for audio electronics
  • Legendary microphones. Cutting-edge wireless systems

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Introducing the Shure UA820J 1/2 Wave Omnidirectional Receiver Antenna, designed to deliver outstanding performance and reliable signal reception for your Shure wireless bodypacks. Operating in the 578-638 MHz frequency range, this antenna is ideal for use with popular Shure systems such as UHF-R, ULX, and SLX receivers. Whether you're a professional musician, sound engineer, or event organizer, the UA820J ensures that your wireless equipment functions at its best, providing clear and uninterrupted audio reception. Read more

Features

  • 1/2 Wave Omnidirectional Antenna for UR4S+, UR4D
  • Receivers, P9T Transmitter, (578 638 MHz)
  • With a history of audio innovation that began in 1925
  • Shure continues to set the worldwide industry standard for audio electronics
  • Legendary microphones. Cutting-edge wireless systems

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About the Shure UA82OJ 578-638 MHz Antenna

The Shure UA82OJ is a professional half-wave, omnidirectional UHF antenna specifically tuned for the 578-638 MHz frequency range (Band J). It is designed to enhance the reception performance of compatible Shure wireless microphone systems operating within this band, replacing shorter stock antennas with a full-size, efficiency-optimized element. The antenna's omnidirectional radiation pattern allows it to capture RF signals equally from all horizontal directions, which is ideal for stages and venues where the position of wireless transmitters is dynamic and unpredictable. By providing a stronger, cleaner signal to the wireless receiver's input, the UA82OJ helps to maximize operating range, minimize dropouts, and improve overall system stability in challenging RF environments.

Engineered for durability and professional use, the antenna features a flexible, rubber-coated whip that is resistant to coiling fatigue and physical damage, making it suitable for both permanent installations and touring applications. It terminates in a standard BNC connector, ensuring a secure and reliable connection to the antenna input ports on Shure and other professional wireless receivers. The antenna is designed to be used in pairs with true diversity receivers, with one antenna connected to each receiver input. Proper spacing and placement of these antennas are crucial to leverage the diversity system effectively, helping to overcome signal nulls caused by multipath interference.

The Shure UA82OJ is a key accessory for audio engineers seeking to optimize their wireless systems for reliability and range. It is commonly deployed in multi-channel wireless setups for concerts, theatrical productions, broadcast, and large-scale corporate events where clear, uninterrupted wireless audio is non-negotiable. By delivering a superior RF signal to the receiver, it forms an essential link in the signal chain, contributing significantly to the robustness and clarity of the entire wireless microphone system.

Key Features

  • 1/2 Wave Omnidirectional Antenna for UR4S+, UR4D
  • Receivers, P9T Transmitter, (578 638 MHz)
  • With a history of audio innovation that began in 1925
  • Shure continues to set the worldwide industry standard for audio electronics
  • Legendary microphones. Cutting-edge wireless systems

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Click here to sell your item

Shure UA82OJ 578-638 MHz Antenna Specs

General
Device Type
Passive Half-Wave Omnidirectional UHF Antenna
Frequency Band
578 - 638 MHz (Band J)
RF Specifications
Gain
0 dBi (nominal, relative to isotropic radiator)
Polarization
Vertical
Impedance
50 ohms
VSWR
< 2.0:1
Physical
Connector
BNC (male)
Cable Length
10 feet (3.05 meters)
Element
Flexible rubber-coated whip
Base
Molded rubber base with strain relief

Key Features

  • 1/2 Wave Omnidirectional Antenna for UR4S+, UR4D
  • Receivers, P9T Transmitter, (578 638 MHz)
  • With a history of audio innovation that began in 1925
  • Shure continues to set the worldwide industry standard for audio electronics
  • Legendary microphones. Cutting-edge wireless systems

Already own this item and want to sell it?

Click here to sell your item

FAQs about Shure UA82OJ 578-638 MHz Antenna

What is the Shure UA820J antenna designed for?

The UA820J is a 1/2-wave omnidirectional receiver antenna designed to enhance RF reception and signal stability for compatible Shure UHF wireless microphone systems. Its 1/2-wave dipole architecture delivers improved wireless coverage and sensitivity compared to compact 1/4-wave stock antennas.

What frequency range does the "J" band version cover?

This specific model is tuned to operate within the UHF spectrum of 578 to 638 MHz (covering Shure's J-band, such as J3, J5, and J11 variants). It must be paired with wireless receivers or antenna distributors that operate within this exact frequency window for optimal reception.

Does the UA820J require a ground plane to function properly?

No, unlike 1/4-wave antennas which require a conductive ground plane (like a metal chassis or rack panel) to operate effectively, 1/2-wave antennas are ground-independent. This allows the UA820J to maintain peak RF performance whether mounted directly on a receiver, on a front-rack bulkhead, or remotely on a stand.

What type of connector does the antenna use?

The antenna terminates in an industry-standard 50-ohm male BNC connector. This allows direct attachment to the rear or front-panel BNC jacks of Shure receivers (such as ULX, SLX, QLX-D, and ULX-D) or antenna distribution units like the UA844+ and UA845.

Can the antenna angle be adjusted for optimal positioning?

Yes, the antenna features an integrated swivel base with a 90-degree articulation joint. This allows you to position the antenna vertically, horizontally, or angled at 45 degrees, which is ideal for achieving proper diversity orientation inside equipment racks.

Does the UA820J require DC bias power to operate?

No, the UA820J is a passive antenna and does not require DC phantom or bias voltage. If connected to antenna ports that supply 12V DC bias (for active antennas or boosters), the antenna will operate normally without risk of damage.

Can I mount the UA820J remotely away from the rack?

Yes, you can position the antenna remotely using low-loss 50-ohm coaxial cables (like RG-8X or RG-213) paired with microphone stand mounting adapters. Remote placement closer to the stage or performance area helps eliminate line-of-sight obstructions and reduces RF dropouts.

Why is it important to match the specific frequency band (578–638 MHz)?

Because the physical length of the antenna element is precisely tuned to resonate within the 578–638 MHz range, using it outside this spectrum causes high RF impedance mismatch and signal reflection. Matching the antenna to your receiver's specific frequency group ensures maximum signal transfer and range.

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