Description
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®900 transmitters or up to four PSM®1000 transmitters when racked in a central location.
Note: PA821B replaces PA821A.
Features
- Combines multiple 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
Specifications
- 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
- Connectory 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)
