Shure PA421B — Four-to-One Wideband PSM Antenna Combiner
PA421B Overview
The Shure PA421B is a professional antenna combiner engineered specifically for PSM in-ear monitor systems, consolidating antenna infrastructure across multiple transmitters into a single, streamlined signal path. Compatible with P3T, P9T, and P10T transmitters, it operates across a wideband frequency range of 470–865 MHz, making it suitable for complex multi-transmitter deployments in touring, broadcast, and installed sound environments. Its four-to-one combining architecture reduces antenna clutter and simplifies RF distribution without sacrificing signal integrity. System integrators, touring engineers, and production companies managing dense PSM deployments will find the PA421B an essential component of a clean, scalable RF infrastructure.
By consolidating four transmitter antenna connections into a single antenna pair, the PA421B streamlines rack layouts and reduces cable runs, supporting more efficient and reliable wireless system management.
Key Features
- Four-to-One Combining — Combines antenna feeds from up to four PSM transmitters into a single antenna path, reducing infrastructure complexity
- Wideband Frequency Coverage — Operates across 470–865 MHz, providing broad compatibility across Shure PSM frequency bands
- P3T, P9T, and P10T Compatibility — Designed specifically for use with Shure’s full range of current PSM transmitters
- Simplified RF Infrastructure — Reduces the number of antennas required in multi-transmitter setups, minimizing rack space and cable management demands
- Professional-Grade Construction — Built to Shure’s standards for reliability in demanding live, touring, and installed sound applications
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