Shure PA421BX 4-Channel Antenna Combiner - 865-960 Megahertz
The PA821B active broadband antenna combiner is a game-changer for venues with multiple PSM systems. It simplifies the setup and boosts reception quality. Here's why:
Features:
- • Streamlines multiple PSM systems for a clutter-free setup
- • Wideband operation from 865-960 Mhz for versatile use
- • 4 Input LED signals for easy status checks
Benefits:
- • Reduces intermodulation distortion and multipath interference for better reception
- • Quiet fan keeps unit cool and noise down
- • Daisy-chain up to 2 combiners for more flexibility
Specifications:
- • RF Frequency Range: 865-960 MHz
- • Impedance: 50 Ω
- • Operating Temperature Range: 18 °C (0 °F) to 63 °C (145 °F)

This Shure PA421BX 4-Channel Antenna Combiner is designed for venues using PSM wireless systems. It combines up to four PSM transmitters' RF outputs into one for a single transmit antenna. Ideal for event organizers and technicians. With a wideband operation of 865 - 960 Mhz, it reduces intermodulation distortion and multipath interference. The unit has a 50 Ω impedance, operates from 18 °C (0 °F) to 63 °C (145 °F), and requires 100 - 240 V AC, 50 - 60 Hz power. It has features like LED indicators, a quiet fan, and can be daisy-chained.