Shure UA874V

Overview

The Shure UA874V is an active directional antenna designed for VHF wireless systems operating between 174 and 216 MHz. It enhances signal strength and clarity by focusing reception within a 120-degree beamwidth, making it ideal for engineers and performers who require reliable wireless audio in challenging environments. With selectable gain settings and a compact, lightweight design, it adapts well to various installation needs, from portable stage setups to permanent mounts.

Key features

• Log-periodic dipole array that concentrates reception to reduce off-axis noise and interference
• Built-in low-noise amplifier with selectable gain levels (+12, +6, 0, -6 dB) to optimize signal quality over different cable lengths
• Power supplied through the coaxial cable via 10–15 VDC bias, eliminating the need for separate power wiring
• Flexible mounting options including standard microphone stands, walls, or ceilings for both temporary and permanent installations
• Lightweight and compact form factor (22 × 17 × 2.7 inches, 27 ounces) for easy handling and positioning by a single person
• Durable construction that withstands a wide temperature range, suitable for touring, corporate, broadcast, and worship environments

Key specs

• Frequency range: 174 to 216 MHz (VHF band)
• Beamwidth: 120 degrees
• Gain settings: +12 dB, +6 dB, 0 dB, -6 dB
• Power supply: 10–15 VDC bias via coaxial cable
• Dimensions: 22 × 17 × 2.7 inches
• Weight: 27 ounces

Connectivity and compatibility

The antenna is designed to work seamlessly with Shure VHF wireless receivers and antenna distribution systems that provide the required 10–15 VDC bias power through the coaxial cable. This integration simplifies setup by combining power and RF signal transmission in a single cable, reducing clutter and installation complexity. Its frequency range aligns with common Shure VHF wireless equipment, ensuring compatibility for a variety of professional audio applications.

Installation and setup

Installation is straightforward thanks to the antenna’s compatibility with standard microphone stands, allowing quick deployment on stage or in temporary setups. For fixed installations, optional brackets enable secure mounting on walls or ceilings. The selectable gain control helps tailor the antenna’s performance to different cable lengths and venue layouts, preventing signal overload or loss. Its lightweight design makes positioning manageable without assistance, while its robust build ensures consistent performance in diverse environments.

Ideal uses and environments

The UA874V is well suited to environments where wireless signal reliability is critical, such as theaters, lecture halls, houses of worship, corporate boardrooms, and broadcast studios. It addresses common challenges like signal dropouts and long cable runs by providing focused reception and adjustable gain. This antenna is a practical choice for professionals looking to enhance VHF wireless system performance without adding complex external equipment, making it a strong option for both touring setups and permanent installations.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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