Shure UA874 Active Directional Antenna — 174–216 MHz
UA874 Overview
The Shure UA874 is a professional active directional antenna engineered to extend and improve wireless signal reception for VHF wireless systems operating in the 174–216 MHz frequency range. It features an integrated amplifier with four selectable gain settings, allowing engineers to optimize signal levels based on deployment distance and environment. The antenna also provides rejection of RF signals outside the coverage area, reducing interference and improving system reliability in RF-dense environments. It is well suited for touring companies, houses of worship, broadcast facilities, and venues running VHF wireless systems.
The UA874’s directional pickup pattern and active amplification make it a practical solution for antenna distribution setups where signal integrity over cable runs is a priority.
Key Features
- Active Directional Design — Focuses reception within the coverage area to improve signal quality and reduce interference from outside sources
- Integrated Amplifier — Built-in amplification compensates for cable loss and extends effective range in larger installations
- Four Gain Settings — Selectable gain levels allow engineers to tailor amplification to the specific deployment environment
- RF Rejection Outside Coverage Area — Attenuates signals from outside the antenna’s directional pattern, improving system noise floor and reliability
- VHF Frequency Coverage — Operates across the 174–216 MHz range, compatible with Shure VHF wireless systems in that band
- Antenna Distribution Compatible — Designed for use with antenna distribution systems in multi-receiver deployments
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