Shure UABIAST-US

Overview

The Shure UABIAST-US is an in-line power supply designed to deliver 12V DC bias power to active antennas or in-line RF devices via a BNC coaxial cable. It is essential for wireless systems where the receiver lacks built-in antenna power or when an antenna distribution amplifier is not available. This unit supports powering up to three devices simultaneously while maintaining signal integrity with less than 1 dB insertion loss, ensuring your wireless setup operates efficiently without signal degradation.

Connecting easily to a standard power outlet through the included PS23US power supply, the UABIAST-US is well suited for fixed installations such as stages, conference rooms, or broadcast environments where expanding wireless system configurations is necessary.

Key features

• Delivers 12V DC bias power through a coaxial cable to active antennas and RF devices
• Supports powering up to three compatible RF components simultaneously, including Shure UA830 amplifiers and UA874 active antennas
• Operates across an RF frequency range of 400 to 1000 MHz, covering common wireless system bands
• Maintains signal quality with less than 1 dB insertion loss, preserving the integrity of your RF signal path
• Features a BNC connector with 50 Ohm impedance for stable and reliable connections
• Includes the PS23US external power supply for straightforward and convenient setup

Key specs

• Power output: 12V DC bias
• Supported devices: up to three RF devices simultaneously
• Frequency range: 400 to 1000 MHz
• Insertion loss: less than 1 dB
• Connector type: BNC coaxial with 50 Ohm impedance
• Power supply included: Shure PS23US external adapter

Connectivity and compatibility

The UABIAST-US connects via a BNC coaxial cable, a common standard in professional RF setups, ensuring compatibility with a range of Shure in-line amplifiers and active antennas. Its 50 Ohm impedance matches typical wireless system requirements, minimizing signal reflections and losses. This makes it a reliable choice for integrating multiple RF components in a single wireless system.

Ideal uses and environments

This power supply is a strong choice for professional audio environments where wireless systems require additional antenna power without compromising signal quality. It fits well in fixed installations such as live event stages, conference rooms, broadcast studios, and other venues where multiple RF devices need to be powered simultaneously. Its ability to support several devices through one unit simplifies wiring and reduces clutter in complex setups.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

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Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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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.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

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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