The Shure UA874US Active Directional Antenna is a premium wireless microphone accessory designed to enhance RF signal reception in challenging environments. It features a compact, paddle-shaped design with integrated amplifier circuitry, offering switchable gain settings of +6 dB, +15 dB, or +20 dB to optimize signal strength over varying distances. The UA874US utilizes a log-periodic dipole array to provide focused, unidirectional pickup, effectively reducing interference and improving system reliability. Its robust, lightweight construction ensures durability and portability, making it ideal for live events, broadcast applications, and installations. Compatible with Shure wireless systems, this antenna includes a BNC connector for seamless integration and operates within a frequency range of 470–698 MHz, adhering to U.S. wireless standards.