- Combines up to Four PSM Transmitters: Efficiently combines up to four PSM transmitters into a single antenna set.
- Improved Intermodulation Artifacts: Reduces interference for a cleaner RF environment.
- Daisy-Chain Capability: Connect up to two combiners using the expansion port.
- Power Supply for IEM Transmitters: Provides DC power to compatible in-ear monitor (IEM) transmitters.
- LED Indicators: Visual feedback for signal presence, signal overload, and current draw.
- Fan Design: Significantly improves cooling and reduces ambient noise.
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PA421B Antenna Combiners
Optimizes RF management and reduces rack clutter for up to four PSM®900 transmitters or two PSM®1000 transmitters when racked in a central location.
Shure PA421B Antenna Combiners are complementary accessories for Shure PSM Personal Stereo Monitor systems. When multiple systems are required for monitoring environments, the PA421B combiners quietly and efficiently reduce rack clutter and optimize RF management for up to four PSM®900 transmitters or two PSM®1000 transmitters when racked in a central location.
Note: PA421B replaces PA421A.
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)
- 4 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
- Provides DC power to compatible IEM transmitters
- LED indications of signal presence and signal overload
- Passive (non-powered) antenna combining
RF Frequency Range PA421B: 470-865 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: 1.09 A (referenced at 100 V AC) (109 VA)
Power Consumption: 98 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: 660 dBm
Four-port PSM Antenna Combiner, 470–865 MHz
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