Shure PA421B 4-Channel Antenna Combiner (470-865 MHz)

Four-Channel Antenna Combiner, 470-865 MHz

Antenna Combiner for PSM Wireless Systems

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

The PA821B active broadband antenna combiner streamlines the simultaneous operation of many PSM systems at a venue. The PA821B combines the RF outputs from up to four PSM transmitters into one RF output to feed a single transmit antenna. This provides significantly improved reception quality due to reduced intermodulation distortion and dropouts due to multipath interference. (Directly replaces PA421A.)

The PA421B is compatible with Shure PSM300, PSM 900 and PSM 1000.

Features:

• Reduction of intermodulation artifacts for cleaner RF environment
• Wideband operation (470-865 MHz)
• Daisy-chain up to 2 combiners with the expansion port.
• Provide DC power to compatible IEM transmitters.
• LED indications of signal presence, signal overload and current draw
• Improved fan design significantly improves thermal efficiency and lowers ambient noise

Specifications:

• Dimensions: 43 x 401 x 365 mm (1.7 x 15.8 x 14.4 in.), H x W x D
• Weight: PA421B, PA421BX: 4.3 kg (9.5 lbs)
• Operating Temperature Range: -18¬∞C (0¬∞F) to 63¬∞C (145¬∞F)
• Power Requirements: 100 to 240 V AC, 50-60 Hz
• Current Drain: PA421B, PA421BX (referenced at 100 V AC): 1.09 A (109 VA)
• Power Consumption:PA421B, PA421BX: 98 W max.
• RF Input
• Connector Type: BNC
• Configuration: Active
• Impedance: 50 Ω
• RF Gain: 0 dB (¬±2 dB)
• RF Input Normal Operating Range: up to +20 dBm max., protected up to +24 dBm
• LED Indicator Minimum Detection Threshold to Activate Channel: 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)
• DC Outputs
• Output Voltage: 15 V DC
• Output Current per output: 660 mA max.
• Output Power per output: 9.9 W
• LED Indicator Minimum Detection Threshold: 85 mA
• LED Overcurrent Indicator: >660 mA