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Shure PA821BX Antenna Combiner 865-960 MHz — Combine Up to 8 PSM Transmitters

Regular price $6,475.00 Sale price $5,180.00
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Shure  |  SKU: PA821BX

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The Shure PA821B Antenna Combiner is a high-performance solution designed to streamline RF management in professional wireless monitoring systems. Ideal for large-scale events, theaters, and broadcast environments, this 1U rackmount unit allows you to combine the RF outputs of up to eight Shure PSM transmitters into a single antenna, reducing intermodulation distortion and minimizing dropouts caused by multipath interference. Operating within the 470–865 MHz frequency range, it ensures compatibility with a broad spectrum of wireless devices.

Equipped with LED indicators for signal presence and overload, the PA821B provides real-time monitoring of each input. Its advanced fan design not only reduces ambient noise but also adjusts power based on temperature, enhancing thermal efficiency. The unit supports daisy-chaining of up to two combiners via its expansion port, offering scalability for larger setups.

Included accessories such as BNC-terminated coaxial cables and DC power output cables facilitate straightforward integration into existing systems. Whether you're outfitting a new venue or upgrading an existing setup, the Shure PA821B Antenna Combiner delivers reliable performance and simplifies your wireless infrastructure.

Features:

  • Combines up to eight PSM transmitters into a single antenna

  • Wideband operation (470–865 MHz)

  • LED indicators for signal presence and overload

  • Temperature-sensitive fan for reduced ambient noise

  • Daisy-chainable with expansion port

  • 1U rackmount design

  • Includes BNC-terminated coaxial and power cables

Specifications Table:

Feature Specification
Frequency Range 470–865 MHz
Impedance 50 Ω
RF Gain 0 dB ±2 dB
Operating Temperature −18°C to 63°C
Power Requirements 100–240 V AC, 50–60 Hz
Current Drain 1.59 A (159 VA)
Power Consumption 143 W max
LED Indicators Signal presence, overload
Expansion Port Passive BNC, <4 dB insertion loss
Dimensions (H x W x D) 1.7 x 15.8 x 14.4 in.
Weight 10.5 lbs

Compare Table:

Model Frequency Range Daisy-Chaining Fan Design Price
PA821B 470–865 MHz Yes Yes $5,180
PA821BX 865–960 MHz Yes Yes $5,180
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