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Shure PA421A 4-Port Antenna Combiner (470 - 952MHz)

B&H # SHPA421A Mfr # PA421A
Usually ships in 7-10 business days

Availability Details


This item is usually Drop Shipped from the MFR/Distributor within 7-10 business days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.

International Orders*
For international orders, credit cards will be charged at time you place your order.

Free Standard Shipping
Not eligible for free Expedited Shipping
You Pay: $1,825.31
Product Highlights
  • Combines PSM Series Transmitters
  • Improves RF Performance
  • Distributes Power

The Shure PA421A 4-Port Antenna Combiner will combine RF (Radio Frequency) signals and distribute power to up to 4 Shure PSM series transmitters. The PA421A will effectively improve overall RF performance and eliminate the clutter associated with excessive antennas and power cables.

Combines up to four PSM transmitters to a single antenna set
Improved RF networking

Reduce rack clutter
Quieter fan for significant reductions in ambient unit noise
Temperature-sensitive fan power for significant reductions in ambient unit heat
4 Input LED Signals (green when active; off when inactive)
4 DC Power LED Signals (green when active; off when inactive; red when active but interrupted/shorted)
Active-channel amplifier power for additional reductions in ambient unit heat
1 Channel engaged = 1 power amplifier active

Updated from PA421SWB, in which all power amplifiers were active in a block, regardless of

how many of the 4 channels were active
Passive (non-powered) antenna combining (Contact Shure Service Department for more detail and availability)
Carrier Frequency Range Wideband (470-952MHz)
Connector Type BNC-type x4
Impedance 50 Ω
Gain Control System Gain: +0/-5dB
Operating Voltage 100-240VAC, 50/60Hz
Current Drain: 1.65 A (referenced at 100 V AC) (165VA)
Consumption: 80W max
RF Indicator Configuration: Active
RF Frequency Range: 470-952 MHz
Max RF Input: 24dBm
RF Gain: 0/-5dB
LED LED Indicator Min. Detection Threshold: 5.5dBm
Distribution Configuration: Active
Output Intercept Point: > 30 dBm, typical
Expansion Configuration: Passive
Insertion Loss: < 4dB
Temperature 0 to 145° F (-18 to 63deg; C)
Dimensions (HxWxD) 1.7 x 15.8 x 14.4" (43 x 401 x 365mm)
Weight 9.5 lbs (4.3kg)
Shure PA421A 4-Port Antenna Combiner (470 - 952MHz)
  • 4 x Coaxial Cable 2' (60.96cm)
  • 4 x Output Power Cable 2' (60.96cm)
  • 120VAC Power Line Cord
  • 230VAC Power Line Cord
  • 240VAC Power Line Cord
  • 1 Year Warranty
  • Antennas

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    Shure -  PA805SWB Directional Antenna for PSM Systems (470-952MHz)
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    Antenna Cables

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    Shure -  BNC Antenna Cable
    • You Pay: $22.00

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