Shure PA821B Eight-Port PSM Antenna Combiner, 470-865 MHz

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. (Directly replaces PA821A).Features Combines up to eight 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 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 (contact Shure Service Department for more details) Provides +15V bias on RF inputs to power antennas Requires modification of unit by qualified service technician