4 Port Mesh Attenuator
The NXA-B4P programmable mesh attenuator is a fully shielded, high-performance, digitally controlled RF attenuator system featuring robust and repeatable digital attenuation. It stands out with a user-friendly GUI, customizable fading profiles, and extensive connectivity options, enclosed in a compact 1RU design.
Frequency Range
200 - 8000 MHz
Ports
4
Dynamic Range
95 dB
Step Size
0.25 dB
Isolation
90 dB
Switch Speed
2 µs
Key Features
Built for continuous operation
The NXA-B4P delivers 95 dB of programmable attenuation with 90 dB channel isolation — engineered for 24/7 automated test environments.
Extended Frequency Range
Operates across a broad spectrum from 200 MHz to 8 GHz, ensuring versatility for a wide array of testing applications.
24/7 Operation
Engineered for continuous use, supporting fully automated testing workflows to maximize efficiency and reliability in mission-critical environments.
Shielded and Precise
Complete shielding ensures highly accurate and interference-free measurements, ideal for precision testing in demanding RF environments.
Customizable Topologies
Tailored to customer specifications, supporting multiple network topologies for enhanced flexibility and optimized test setups.
High Dynamic Range
Offers up to 95 dB of attenuation with fine-grain control, adjustable in 0.25 dB increments, delivering exceptional precision for signal fading and attenuation simulations.
Tailored User Interface
Custom-designed software interfaces align with specific customer needs, providing an intuitive and efficient control experience for streamlined operations.
Target Applications
Automated RF test
environments
The NXA-B4P is ideal for environments demanding precise, repeatable signal control across multiple concurrent devices.
Wi-Fi communication systems
Cellular systems (5G/4G/3G/2G)
MIMO, Multipoint Radio Fading
Automated Test Equipment (ATE)
Specifications
Technical Data
Complete performance data for the NXA-B4P.
Electrical Characteristics
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Frequency Range (MHz) | 200 | — | 8000 | MHz |
| Impedance | — | 50 | — | Ω |
| Channel Inputs/Outputs | — | 4 | — | — |
| Attenuation Range | — | 95 | — | dB |
| Shielding | — | 90 | — | dB |
| Isolation between Channels | — | 90 | — | dB |
| Step Size | — | 0.25 | — | dB |
| Insertion Loss (< 2 GHz) | — | 18 | — | dB |
| Insertion Loss (< 4 GHz) | — | 22 | — | dB |
| Insertion Loss (< 7.5 GHz) | — | 28 | — | dB |
| Attenuation Accuracy | 0.25 | 1.5 | — | dB |
| Switching Speed | — | 2 | — | µs |
| Maximum Input Level (operating) | — | +28 | — | dBm |
| Maximum Input Level (absolute max) | — | +33 | — | dBm |
| Input IP3 | — | 58 | — | dBm |
| Operating modes | — | Uni/Bi-Directional | — | — |
| Control | — | GUI control or APIs | — | — |
| Power | — | Power over Ethernet (PoE) | — | — |
| Operating Temperature | -30 | — | +70 | °C |
| RF connectors | — | SMA | — | — |
| Control Interface | — | Ethernet or USB | — | — |
| Operating System | — | Windows, Linux and Mac | — | — |
Mechanical & Environmental
| Power Requirements | +5VDC (from USB port) – 1.1 Amps |
| Environmental | Operating Temperature: 0°C to +40°C |
| Physical Connections | Power Connector: USB Control: USB/Ethernet RF Connectors: SMA – female |
| Mechanical | Size (1RU): 17.0 x 13 x 1.75 inches Weight: 10 lbs / 4.5 kg |
Need a custom config?
We design custom mesh attenuator systems for specialised frequency ranges and port counts.
Contact engineeringArchitecture
Functional Diagram
A fully non-blocking mesh topology ensures seamless multipath emulation and full interconnectivity.
Capabilities