Shure PA821B Antenna Combiners are complementary accessories for Shure PSM® personal stereo monitor systems. When multiple systems are required for monitoring applications, the PA821B combiners quietly and efficiently optimize RF management for up to eight PSM transmitters when racked in a central location, while also reducing rack clutter.
Combines up to eight PSM® transmitters to a single antenna set
Improved intermodulation artifacts for cleaner RF environment
Reduces rack clutter
Wideband operation
Daisy-chain up to 2 combiners with the expansion port
LED indications of signal presence, signal overload
Improved fan design significantly improves thermal efficiency and ambient noise
Optional modification to enable combining of microphone receiver antennas
Provides +15V bias on RF inputs to power antennas
Requires modification of unit by qualified service technician
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