Emerson has launched the NI USRP X420, a software-defined radio (SDR) platform designed to support 6G research, satellite communications, and advanced radar prototyping. By extending frequency coverage to 20 GHz, the device allows engineers to access FR3 bands and X/Ku spectrums directly, eliminating the need for external downconverters, according to company specifications.
How does the 20 GHz range impact 6G development?
The NI USRP X420 enables direct access to the FR3 frequency band, which is currently a primary focus for 6G standardization. By covering up to 20 GHz, the hardware allows researchers to bypass external conversion modules that often introduce signal degradation or latency. According to Emerson, this capability is essential for Integrated Sensing and Communications (ISAC), a technology that merges wireless data transmission with environmental detection. This approach mirrors shifts in the aerospace sector, where signal fidelity is critical for high-frequency operations.

Why is local oscillator sharing critical for MIMO systems?
Phase coherence across multiple channels is a prerequisite for advanced technologies like MIMO (Multiple Input, Multiple Output) and distributed radar networks. The X420 architecture incorporates internal local oscillator (LO) sharing, which synchronizes the phase of all channels within the chassis. Sarah LaSelva, product marketing manager for RF and wireless solutions at NI Emerson, notes that this design aims to provide the agility of software-defined platforms while maintaining the rigorous physical measurement standards found in traditional laboratory instruments.
What are the primary applications for the X420?
The platform is engineered for high-bandwidth environments, featuring an instantaneous bandwidth of up to 1 GHz. This capacity is optimized for three specific use cases:

- Spectrum Monitoring: Real-time capture and analysis of crowded electromagnetic environments.
- Satellite Communications: Testing non-terrestrial networks (NTN) that operate in X and Ku bands.
- RF Record and Playback: Capturing complex signal environments for later laboratory replay and algorithm refinement.
Did you know? Traditional SDRs often required separate, bulky synchronization hardware to align phase across multiple antennas. Integrating the LO distribution inside the X420 chassis significantly reduces the footprint of multi-channel test benches.
Frequently Asked Questions
- Does the X420 require external modules for 20 GHz coverage?
- No. The device is designed to cover up to 20 GHz internally, removing the need for external downconversion modules.
- What is the maximum instantaneous bandwidth of the device?
- The NI USRP X420 supports an instantaneous bandwidth of up to 1 GHz.
- Is this platform suitable for 6G research?
- Yes. It is specifically built to support the FR3 bands currently under study for next-generation mobile standards.
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