Address critical and complex radio communications

The Spirent Vertex® Channel Emulator is a versatile platform that offers unprecedented scalability while supporting emulation of many channel models. The simple plug-and-play design is built to test a broad number of applications that require varying channel densities. Supported applications range from basic two-channel SISO to complex, high-density scenarios needed to prepare for 5G, such as 3- and 4-component carrier aggregation, higher order MIMO OTA, and 3D bidirectional beamforming.

Simplifying 5G Channel Modeling for RF Testing Needs

With the ubiquitous promise of 5G networks, engineers from a wide range of industries are developing wirelessly connected products. They need the ability to test and verify their designs via user-friendly tools that reduce testing complexities and help them get to market faster, with lower cost and peak performance. Watch this webinar to learn about the intricacies of real-world 5G environments and how 3D channel modeling software can simplify the creation of complex antenna propagation scenarios in a lab setting.

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Easily Create Complex 5G Test Scenarios

Spirent’s Advanced Channel Modeling software allows simple creation of highly complicated propagation scenarios such as massive MIMO and high-speed vehicle. Simply select from an intuitive menu of parameters, or import any or all of them, and then build the desired environment in a few clicks.

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Performance Testing of Wi-Fi 6 Devices

Wi-Fi 6 promises to deliver improved capacity, latency, and efficiency in high-challenge environments such as large indoor areas and dense, congested outdoor spaces.

These new capabilities and demanding scenarios have a considerable impact on traditional Wi-Fi testing, so it becomes critical to incorporate channel emulation into the test strategy to assure the expected superior performance.

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What to Test



Test the MIMO performance of your device in a realistic Over-the-Air environment, either with an anechoic or reverb chamber


Massive MIMO and Antenna Arrays

Integrate multiple Vertex instruments to support higher numbers of independent RF channels with real-time fading

Mesh Network Icon

Mesh Networks

Supports up to 16x16 independent channel models, providing the capability to test a mesh network with up to sixteen nodes


Virtual Drive Testing

Emulate up to sixteen SISO or eight 2x2 MIMO cells to accurately reproduce real network conditions in the lab


Carrier Aggregation

Supports up to four 2x2 bi-directional carriers; each radio link can be modelled independently, simulating channel conditions to represent multiple carriers on the same or different eNodeBs


MIMO Beamforming

Enables the most accurate and consistent emulation of a variety of spatial channels and models

eBook | Measuring Massive MIMO

The approach to testing the connectivity and functionality of 5G networks is as revolutionary as the network itself. This eBook gives a quick overview of what’s coming in 5G and details an innovative approach to testing the massive MIMO antenna arrays that will be an integral part of the new technology.

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Testing 5G mmWave Scenarios

Spirent’s Vertex High Frequency Converter (Vertex HFC) was developed to bring advanced channel emulation test capabilities to 5G applications. It converts the traditional 2GHz to 3GHz RF range to the mmWave range of 27.5GHz to 28.5GHz and vice versa, allowing channel characteristic simulation in millimeter waveband scenarios required for 5G implementation.

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Simplify 5G Conductive RF Testing

Spirent has partnered with Topyoung to develop an innovative test solution that provides an economic and practical way to test the performance of massive MIMO and 3D beamforming systems in a lab environment.

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Defense and Aerospace Applications

Spirent Vertex addresses testing of critical and highly complex RF communication channels and specialized military scenarios. Features include frequency bandwidths as low as 30MHz, mesh network configurations, and wideband frequency hopping.

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Spirent's Vertex MIMO OTA solution models real-world over the air environments and can be used with both anechoic and reverberation chambers. For anechoic chambers, Vertex supports up to 32 RF probes and two carriers with 16 dual polarized probes or 8 dual polarized probes on one instrument.  For reverberation chambers, up to four carriers can be aggregated on one instrument.

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Repeatable and Realistic Virtual Drive Testing

Capturing, saving and playing back an RF environment is easier than ever with Spirent’s Live2Lab Virtual Drive Test - Conversion Tool (VDT-CT). Drive a route once, capture RF scenarios with a third-party scanner, and play them back with Live2Lab for repeatable, realistic drive testing within minutes. For high-speed train or aircraft device performance scenarios, Spirent’s Live2Lab can import and analyze logged data at speeds up to 1,620 km/hr (1,007 mph).

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Features & Benefits

The Vertex Wireless Channel Emulator is scalable to a broad range of applications. The hardware is capable of supporting as few as two bidirectional RF channels for basic RF testing and as many as 32 unidirectional RF channels to support high channel density applications in one instrument.
Separate RF modules are optimized for unidirectional or bi-directional applications and support a variety of different frequency bands; which allows Vertex to be configured for specific test needs using minimal hardware.
Wide frequency range and bandwidth
Vertex has an unmatched frequency range of 30MHz to 5925MHz with a single instrument. Individual bandwidths can be as high as 200MHz per channel and be combined up to 1GHz with concatenation to support frequency hopping.
High channel density in a compact space
Vertex supports up to 36 RF ports and 256 digital links in one 6U rack height. It enables more efficient use of hardware for tests that require higher RF channel counts, such as sophisticated MIMO applications and next-generation 5G services.
Remote programming interface (RPI)
Remote programing is supported through TCP/IP. The RPI commands provide seamless backward compatibly to Spirent’s VR5 HD channel emulator.
Comprehensive 2D/3D channel modeling
The built-in Vertex propagation library offers a vast selection of standard channel models and makes it easy to edit and save changes to create user-defined models, both classical and geometrical.

White paper

Fading Basics—Narrow Band, Wide Band and
Spatial Channels

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White paper

Path-Based Spatial Channel Modeling

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Data sheet

Vertex overview, capabilities, and applications

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White paper

Ensuring MIMO Device Performance with Over-the-Air Testing

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White paper

Correlation-Based Spatial Channel Modeling

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Technical Documentation

Specifications and user manuals

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