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Combines up to four PSM® transmitters to a single antenna set
Improved intermodulation artifacts for cleaner RF environment - Reduces rack clutter
Wideband operation (470-865 MHz or 865-960 MHz)
Daisy-chain up to 2 combiners with the expansion port
Provides DC power to compatible IEM transmitters
LED indications of signal presence, signal overload and current draw
Improved fan design significantly improves thermal efficiency and ambient noise
Optional modification to enable combining of microphone receiver antennas (contact Shure Service Department for more details)
Provides +15V bias on RF inputs to power antennas
Requires modification of unit by qualified service technician

Shure PA421B