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Shure

Shure PA411 - Antenna Combiner

$866.00

The Shure PA411 Antenna Combiner distributes DC power and RF signal for up to four Shure PSM300 transmitters. The compact half-rack system significantly reduces the amount of antennas and power supplies needed when using multiple systems. Antenna combiner distributes DC power and RF signal for up to 4 PSM300 transmitters. The compact half-rack system reduces the number of antennas and power supplies needed when using multiple systems.

View Product Features

  • Four-port RF combining: Combines up to four transmitter antennas.
  • DC power distribution: Supplies power to connected PSM transmitters.
  • Wideband frequency range: Covers 470 to 865 MHz spectrum.
  • RF LED indicators: Displays signal presence and overload status.
  • Compact half-rack size: Saves valuable rack space and reduces clutter.
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About the Shure PA411 - Antenna Combiner

The Shure PA411 is a professional passive antenna combiner designed to optimize wireless system performance and simplify antenna infrastructure in multi-channel setups. This device allows two separate wireless receivers (or two sides of a diversity receiver) to share a single pair of remote antennas, reducing the number of antennas needed on a mast or truss and minimizing cable runs. By combining signals passively, it eliminates the need for additional power supplies and helps maintain a clean RF signal path without introducing noise or distortion. This is particularly valuable in crowded rack environments and complex touring rigs where antenna real estate and cable management are constant challenges.

The combiner is constructed with high-quality, shielded internal components to provide excellent isolation between ports and maintain signal integrity across a broad UHF frequency range. It typically features two antenna input ports (A and B) that connect to the remote antennas, and four receiver output ports that distribute the combined signal to up to four receiver channels. This design not only cleans up the physical setup but can also improve system performance by enabling the use of higher-gain, directional antennas (like helicals or paddles) that are shared among multiple receivers, ensuring all channels benefit from optimal antenna placement. The unit is housed in a rugged, rack-mountable metal chassis for reliable operation in demanding environments.

The Shure PA411 is an essential tool for system engineers designing efficient and reliable wireless microphone and in-ear monitor systems. It streamlines deployment, reduces potential points of failure, and contributes to a more organized and professional system architecture. By enabling antenna sharing, it represents a smart, cost-effective solution for maximizing RF performance while minimizing hardware clutter in both fixed installations and mobile productions.

Key Features

  • Four-port RF combining: Combines up to four transmitter antennas.
  • DC power distribution: Supplies power to connected PSM transmitters.
  • Wideband frequency range: Covers 470 to 865 MHz spectrum.
  • RF LED indicators: Displays signal presence and overload status.
  • Compact half-rack size: Saves valuable rack space and reduces clutter.

Shure PA411 - Antenna Combiner Specs

Product Function
Type
Passive Antenna Combiner
Purpose
Share Antennas Between Multiple Receivers
Configuration
Antenna Inputs
2 Ports (for Diversity Pair)
Receiver Outputs
4 Ports
Operation
Passive (No Power Required)
Electrical Performance
Frequency Range
UHF Wireless Band
Isolation
High between Ports
Physical Specifications
Connectors
BNC Type
Housing
Metal, Rackmountable
Mounting
1/4 Rack Width
Primary Use
Application
Multi-Channel Wireless System Deployment
Benefit
Reduces Antenna and Cable Count

Key Features

  • Four-port RF combining: Combines up to four transmitter antennas.
  • DC power distribution: Supplies power to connected PSM transmitters.
  • Wideband frequency range: Covers 470 to 865 MHz spectrum.
  • RF LED indicators: Displays signal presence and overload status.
  • Compact half-rack size: Saves valuable rack space and reduces clutter.
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