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Shure UA8-578-638 Instrument Condenser Microphone Antenna

Condenser

Shure UA8-578-638 half-wave omnidirectional antenna delivers reliable wireless coverage for UHF systems in the 578–638 MHz range.

$32.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Shure UA8-578-638 is a half-wave omnidirectional antenna engineered for use with select Shure UHF wireless systems, specifically the UR4S+ and UR4D receivers and the P9T personal monitor transmitter. Operating in the 578–638 MHz frequency band, it is designed to replace or supplement the standard antennas that ship with these units, providing improved signal reception across a wider physical area. Its omnidirectional radiation pattern means it picks up RF signals from all directions, making placement and orientation far less critical than with directional alternatives.

For professionals working in live sound, broadcast, or house-of-worship environments, the UA8-578-638 offers a meaningful upgrade in wireless reliability. The half-wave design delivers greater effective range and better signal-to-noise performance than quarter-wave antennas, which can be especially important in venues with RF congestion or physical obstructions. Because it is a genuine Shure accessory, it is tuned precisely for the target frequency range and connects directly to compatible Shure hardware without adapters.

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

Specifications

Brand
Shure
Model
UA8-578-638
Type
1/2 Wave Omnidirectional Antenna
Frequency Range
578–638 MHz
Compatibility
UR4S+, UR4D Receivers, P9T Transmitter

Pros & Cons

👍 Pros

  • Omnidirectional pickup pattern eliminates the need to aim or orient the antenna toward transmitters.
  • Half-wave design provides improved signal range compared to standard quarter-wave antennas.
  • Purpose-built for Shure UR4S+, UR4D, and P9T units ensuring seamless compatibility.
  • Genuine Shure manufacturing ensures consistent build quality and reliable RF performance.

👎 Cons

  • Only covers the 578–638 MHz band so it cannot be used with Shure systems operating outside that range.
  • Compatible with a limited set of Shure receivers and transmitters rather than the full Shure wireless lineup.
  • Does not include a mounting bracket or cable so additional accessories may be needed for remote antenna placement.
  • Higher cost compared to generic third-party UHF antennas.

Frequently Asked Questions

It is designed for use with the Shure UR4S+ and UR4D wireless receivers and the P9T personal monitor transmitter.
The UA8-578-638 operates within the 578–638 MHz UHF frequency band.
It is a half-wave omnidirectional antenna, meaning it receives signals equally from all directions.
No, it is engineered specifically for compatible Shure receivers and transmitters and uses Shure's proprietary connector and tuning.

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