Shure PA821B - 8-Channel Antenna Combiner (470-865 MHz)


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Dale #:SHUR-PA821B

Availability: In Stock

Available for immediate shipment and pick-up from our Jamaica, New York location. In-store pick-up is available Monday through Friday from 8:30 am to 5:30 pm
Free Shipping (Continental US)
  • Shure PA821B Antenna Combiners are complementary accessories for Shure PSM Personal Stereo Monitor systems. When multiple systems are required for monitoring environments, the PA821B combiners quietly and efficiently reduce rack clutter and optimize RF management for up to eight PSM transmitters when racked in a central location.


    • Combines up to eight PSM transmitters to a single antenna set
      • Improves RF networking
      • Reduces rack clutter 
    • Wideband operation (470–865 MHz or 865–960 MHz)
    • 8 Input LED Signals (green when active; off when inactive)
    • Quieter fan for significant reductions in ambient unit noise
    • Temperature-sensitive fan power for significant reductions in ambient unit heat
    • LED indications of signal presence and signal overload
    • Passive (non-powered) antenna combining*

    * Contact Shure Service Department for more detail and availability. Requires modification of unit by qualified service technician.

  • RF Frequency Range PA821B: 470-865 MHz
    PA821BX: 865-960 MHz
    Impedance 50 Ω
    Operating Temperature Range −18 °C (0 °F) to 63 °C (145 °F)
    Power Requirements 100 to 240 V AC, 50-60 Hz
    Current Drain 1.59 A (referenced at 100 V AC) (159 VA)
    Power Consumption 143 W max.
    RF Input  
    Connector Type BNC
    Configuration Active
    Impedance 50 Ω
    RF Gain 0 dB (±2 dB)
    LED Indicator Min. Detection Threshold 2.5 dBm
    LED Indicator Overload Threshold >24 dBm
    Main Output  
    Connector Type BNC
    Impedance 50 Ω
    Expansion Port  
    Connector Type BNC
    Configuration Passive
    Impedance 50 Ω
    Insertion Loss <4 dB
    RF Expansion Port Normal Operating Range 33 dBm (2 W)
    Included Accessories IEC Power Cord
    Four (4) 2 ft. DC power output cables
    Four (4) 22 in. coaxial cables, BNC terminated
    One (1) 11 in. coaxial cable, BNC terminated
    Optional Accessories Passive omnidirectional antenna
    Passive directional antenna
    Helical antenna
    BNC-terminated coaxial cables (RG-8X/U; various lengths)
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