Shure ADX2FDTA/B87C=-G57 Digital Handheld Wireless Microphone Transmitter with Beta 87C Capsule (G57: 470 to 616 MHz) (TAA-Compliant)

Product Overview

The Shure ADX2FDTA/B87C=-G57 is a professional Axient Digital frequency diversity handheld wireless microphone transmitter equipped with the Beta®87C condenser supercardioid capsule, operating in the G57 frequency band (470–616 MHz). Built for demanding commercial AV installations where RF reliability is non-negotiable, this TAA-compliant transmitter meets federal procurement requirements for government, defense, and education deployments. Frequency diversity technology transmits on two independent RF carriers simultaneously, maintaining uninterrupted audio even in congested spectrum environments. Commercial AV integrators building wireless microphone systems for government spaces, conference centers, and performing arts venues will find the ADX2FDTA/B87C a dependable foundation for scalable Axient Digital deployments.

Product Description

The ADX2FDTA/B87C=-G57 pairs Shure's flagship Axient Digital wireless platform with the refined vocal response of the Beta®87C capsule. The Beta 87C delivers a smooth, extended frequency response with a tight supercardioid polar pattern, making it the preferred choice for lead vocalists and presenters where feedback rejection and intelligibility are critical. ShowLink® 2.4 GHz remote control enables AV operators to adjust gain, mute status, and transmission power in real time from front-of-house without interrupting a live event — a key advantage in professional installation environments. With a tuning bandwidth of up to 184 MHz across the G57 band, system designers have broad spectrum flexibility to coordinate channels in complex multi-transmitter deployments. The included SB920A rechargeable batteries deliver up to 6.5 hours of runtime in frequency diversity mode and up to 9 hours in single-carrier mode. For a related Axient-tier handheld option, also consider the Shure AD2/K8N Axient Digital Handheld Transmitter (KSM8 capsule).

Key Features

• Frequency Diversity Transmission — Simultaneously transmits on two independent RF carriers; if one signal degrades, the system maintains continuous, artifact-free audio without manual intervention.
• Beta®87C Supercardioid Condenser Capsule — Delivers a smooth, extended high-frequency response with a tight polar pattern that rejects feedback and off-axis noise, ideal for vocals and presentations in reverberant commercial spaces.
• TAA-Compliant — Satisfies Trade Agreements Act requirements for U.S. government, DoD, and federally-funded education procurement under GSA schedules.
• ShowLink® Remote Control — Enables real-time wireless adjustment of transmitter gain, mute, and RF settings via 2.4 GHz from the control position without physical access to the transmitter.
• Up to 184 MHz Tuning Bandwidth — Provides broad spectrum flexibility across the G57 band (470–616 MHz) to support complex multi-channel system coordination and interference avoidance.
• SB920A Rechargeable Battery System — Includes two SB920A lithium-ion batteries; up to 6.5 hours runtime in frequency diversity mode, up to 9 hours in single-carrier mode, with compatible networked charging solutions available separately.
• Standard and High Density Transmission Modes — Supports Standard mode for optimal coverage and High Density mode for maximum simultaneous channel count in large-format installations.
• Full Axient Digital Ecosystem Integration — Compatible with Axient Digital receivers, Wireless Workbench® software, and ShureCloud for centralized system monitoring, frequency coordination, and firmware management.

Typical Applications

• Government and federal agency presentation and conference spaces (TAA-compliant procurement)
• Boardroom and executive conference room wireless microphone systems
• Auditorium and performing arts center live sound installations
• Broadcast studio vocal reinforcement
• House of worship main stage wireless systems
• Commercial meeting space and all-hands room AV builds
• Multi-purpose room and training room installations

Technical Specifications

Competitor Comparison

Frequently Asked Questions

What receivers are compatible with the ADX2FDTA/B87C=-G57?
This transmitter is compatible with Shure Axient Digital receivers (such as the AD4D dual-channel and AD4Q quad-channel) operating in the matching G57 frequency band. Frequency band must match between transmitter and receiver.

What does TAA-compliant mean for procurement purposes?
TAA (Trade Agreements Act) compliance means the product is manufactured in a designated country, satisfying requirements for U.S. government, defense, and federally-funded education purchases under GSA schedules and government procurement contracts.

Can ADX2FDTA transmitters work with ULX-D or QLX-D receivers?
No. ADX2FD transmitters are designed exclusively for Axient Digital-series receivers and are not compatible with ULX-D, QLX-D, or other Shure system receivers.

How does Frequency Diversity protect against RF dropout?
The transmitter sends identical audio on two independent RF frequencies simultaneously. If one frequency encounters interference or a deep fade, the receiver seamlessly switches to or combines signals from the alternate carrier, maintaining continuous audio with no audible interruption.

What is the battery runtime, and are chargers included?
The two included SB920A batteries provide up to 6.5 hours in frequency diversity mode or up to 9 hours in single-carrier mode. Compatible networked charging docks (SBC240 two-bay, SBC840 eight-bay) are available separately and integrate with Wireless Workbench for battery status monitoring.

Does the ADX2FDTA work with Wireless Workbench and ShureCloud?
Yes. Wireless Workbench® 6 and ShureCloud provide full system monitoring, spectrum scanning, frequency coordination, firmware updates, and remote parameter control for all Axient Digital components including this transmitter.