Shure PA421A PSM Antenna Combiner

Reliable Signal Management The Shure PA421A PSM Antenna Combiner

The Shure PA421A PSM Antenna Combiner actively combines antenna outputs from multiple PSM wireless transmitters into a single antenna, improving RF performance while reducing rack clutter. With four DC power outlets, it allows additional PSM systems to connect without requiring external power supplies. Designed for compatibility with Shure PSM transmitters such as the P9T, the PA421A provides efficient power distribution and streamlined antenna management for professional wireless setups.

• Combines multiple PSM transmitter antenna outputs into a single antenna
• Four DC power outlets supply 15 V at up to 660 mA each
• LED indicators display current draw per DC output
• Expansion port enables linking with other PSM transmitters or combiners
• Includes BNC-BNC cables and power line cords
• Compatible with Shure wideband antennas and accessories
• Reduces rack clutter while improving RF performance

Front-panel LEDs provide status of connected devices, while the expansion port offers flexible system growth. With its rugged build and professional-grade performance, the PA421A ensures reliable operation for demanding live and broadcast applications.

SPECIFICATIONS

General

• Dimensions: 43 x 401 x 365 mm (1.7 x 15.8 x 14.4 inches), H x W x D
• Weight: 4.3 kg (9.5 lbs)
• Operating Temperature Range: -18C (0F) to 63C (145F)
• Power Requirements: 100240 V AC, 5060 Hz
• Current Drain: 1.65 A (at 100 V AC)
• Power Consumption: 80 W max

RF Input

• Connector Type: BNC (4)
• Configuration: Active
• Impedance: 50
• Frequency Range: 470952 MHz
• Gain: 0 / -5 dB
• Absolute Maximum RF Input: 24 dBm
• LED Indicator Minimum Detection Threshold: 5.5 dBm

Distribution Output

• Connector Type: BNC
• Configuration: Active
• Impedance: 50
• Output Intercept Point (OIP3): >30 dBm typical

Expansion Port

• Connector Type: BNC
• Configuration: Passive
• Impedance: 50
• Insertion Loss: <4 dB

DC Output

• Output Voltage: 15 V DC
• Output Current: 660 mA max per outlet
• Output Power: 9.9 W
• LED Indicators: Green >85 mA, Red >660 mA

Manufacturer:Shure
Model:PA421A
SKU:I276465-N-0-WHXB
UPC: 042406216210

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