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Shure – PA421B Antenna Combiner for PSM® Wireless Systems

Shure

Four-to-One Wideband PSM Antenna Combiner for all P3T, P9T and P10T Transmitters (470-865 MHz)

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Description

Shure PA421B Antenna Combiners are complementary accessories for Shure PSM® Personal Stereo Monitor systems. When multiple systems are required for monitoring applications, the PA421B combiners quietly and efficiently optimize RF management for up to four PSM® transmitter, while also reducing rack clutter. (Directly replaces PA421A.)

Features

  • 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

Additional information

Weight 4.8 kg
Specifications

RF Frequency Range:
PA421B: 470-865 MHz
PA421BX: 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: 1.09 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: <4 dB
RF Expansion Port Normal Operating Range: 33 dBm (2 W)
DC Outputs

Output Voltage: 15 V DC
Output Current (Per Output): 660 mA max
Output Power (Per Output): 9.9 W
LED Indicator Min. Detection Threshold: 85 mA
LED Indicator Overload Threshold: >660 dBm
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

Downloads

Data Sheet Download
User Guide Download