Shure PA821B Eight-channel Antenna Combiner, 470-865 MHz
Shure PA821B Eight-channel Antenna Combiner, 470-865 MHz is backordered and will ship as soon as it is back in stock.
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Shure PA821B Eight-channel Antenna Combiner, 470-865 MHz
Product Overview
The Shure PA821B antenna combiner is an eight-channel PSM antenna combiner for commercial AV installations running large counts of Shure personal monitoring systems from a single transmit antenna. It merges the RF outputs of up to eight PSM transmitters across the 470-865 MHz range, reducing intermodulation distortion and multipath dropouts. For integrators designing in-ear monitor RF distribution in high-density venues, this 470-865 MHz wireless monitor combiner is the backbone of clean, scalable antenna infrastructure. It is the eight-channel counterpart to the four-channel PA421B.
Product Description
The PA821B is an active broadband antenna combiner that streamlines simultaneous operation of many PSM systems at one venue. Instead of mounting a transmit antenna for every transmitter, the integrator routes up to eight P3T, P9T, or P10T transmitters into the combiner and feeds a single shared antenna. This eight-channel PSM antenna combiner is suited to large-scale wireless monitoring deployments where rack space and RF coordination are at a premium. By combining outputs into one antenna feed, it lowers the antenna-to-antenna interference that degrades dense wireless systems. The PA821B is compatible with Shure PSM 300, PSM 900, and PSM 1000 systems, making it a strong fit for venues standardizing on Shure monitoring at scale. It is engineered for rack-mount integration alongside other commercial-grade wireless infrastructure. For smaller systems, the four-channel Shure PA421B covers up to four transmitters, while the PA821BX serves 865-960 MHz deployments.
Key Features
- Eight-to-One RF Combining — Merges the outputs of up to eight PSM transmitters into a single antenna feed for large wireless monitoring systems.
- Wideband 470-865 MHz Coverage — Supports broadband operation across the 470-865 MHz range for flexible frequency coordination in commercial deployments.
- Reduced Interference — Lowers intermodulation distortion and multipath dropouts compared with running many independent transmit antennas.
- Active Broadband Design — The active circuit helps offset combining losses so transmit signal strength is maintained across all eight channels.
- Broad Shure Compatibility — Works with P3T, P9T, and P10T transmitters across PSM 300, PSM 900, and PSM 1000 systems.
- Rack-Ready Integration — Designed for installation in commercial AV equipment racks alongside other wireless components.
Typical Applications
- House of worship
- Auditorium
- Broadcast studio
- Multi-purpose room
Technical Specifications
| Model | PA821B |
| Type | Active broadband PSM antenna combiner |
| Configuration | Eight-to-one (up to eight transmitters into one antenna) |
| RF Frequency Range | 470-865 MHz |
| Compatible Transmitters | P3T, P9T, P10T |
| Compatible Systems | PSM 300, PSM 900, PSM 1000 |
Frequently Asked Questions
How many transmitters can the PA821B combine?
Up to eight PSM transmitters are merged into one antenna feed, making it suited to large multi-channel monitoring systems.
Which Shure systems are compatible?
It works with PSM 300, PSM 900, and PSM 1000 systems using P3T, P9T, or P10T transmitters in the 470-865 MHz range.
When should I choose the PA821B over the PA421B?
Choose the PA821B when you need to combine more than four transmitters; the four-channel PA421B is the right fit for smaller systems.
What about higher-frequency bands?
The PA821BX covers the 865-960 MHz band for deployments using higher frequencies.
How does it integrate into an AV rack?
The PA821B is built for rack-mount installation and connects between your PSM transmitters and a shared transmit antenna using standard coaxial antenna cabling.
Is support available for integration?
The PA821B is covered by Shure's standard manufacturer warranty, and Creation Networks can assist with specification and integration into commercial AV systems.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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