Spirent PNT X is a revolutionary simulation system that addresses the increasing complexity of the PNT environment. This all-in-one solution generates all GNSS constellations, RF threats, and signals of opportunity available for comprehensive test coverage and high realism. In an era when compromising on PNT performance is not an option, PNT X delivers new patented capabilities, simplified software for configuring complex test scenarios, and critical simulation integrity to ensure trustworthy results.
PNT X is the 6th generation of Spirent’s GNSS and PNT simulators. It’s flexible software-defined hardware architecture comprises a signal generator and a dedicated C50 X host controller running Spirent’s SimGEN™ software
The PNT X signal generator can be configured with up to 10 SDR cards1 generating up to 640 independent signals in total. Each SDR card comes with 64 channels enabled and is capable of supporting any number of licenced GNSS constellations within the same frequency band. The configuration of constellations and frequencies per SDR card is fixed for the duration of the scenario.
The PNT X signal generator has the following RF outputs:
• 2 combined RF outputs at the front panel for GNSS nominal power levels.
• 10 individual RF outputs (each of them connected to a SDR card) at the front panel for single channel applications2.
• 2 combined RF outputs at the rear panel for high power levels (50 dBs above nominal).
By means of an output block, the SDR cards are linked to the combined RF outputs. By default, this combination is achieved by allocating up to 5 SDR cards behind RF1 and up to 5 SDR cards behind RF2. For single antenna applications, all 10 SDR cards can be combined into a single RF output on the front pannel connecting the loopback cable provided with the signal generator. The inherent flexibility of the hardware architecture also allows for an optional arrangement of SDR cards with up to 8 behind RF1 and up to 2 behind RF2. Applications for this configuration include dual-frequency embedded interference or GNSS + LEO3.
C50 X Host Controller
The signal generator is controlled by a dedicated, rack-mountable C50 X host controller, which is a Spirent proprietary design, multi-processor/core system, configured with a mixed Operating System (OS) environment (Debian 11 Linux and Windows® 10 LTSC IOT 2021 [Virtualisation Only]). This combination of processing power and dual OS provides the perfect platform to enable PNT X new bench-mark performance levels, and to support Spirent’s SimGEN scenario definition and simulation control software application.
PNT X integrates a diverse technology stack that leverages the right technology for every application. The C50 X incorporates the industry-proven purpose-designed FPGA-based SDR architecture used for GNSS signal generation as well as a NVIDIA® GPU.
The GPU is leveraged in a targeted manner for specific software applications such as real-time 3D multipath calculations, I/Q spatial awareness and generating Xona signals. Optionally, a second GPU can be accommodated in the host controller4.
Infinite Scalability
Each PNT X solution offers the flexibility of scalable signal generation, allowing for seamless control of multiple signal generators within a unified system orchestrated by a single SimGEN scenario5. This configuration is suitable for applications requiring more than 2 combined RF outputs or the simulation of a high number of independent signals.
Spirent provides rack solutions tailored to accommodate PNT X systems and all associated ancillaries, including a signal distribution unit and a multi-chassis combiner unit.
Contact Spirent to discuss and customize your requirements for optimal performance and functionality.
For more information please contact AlJammaz Technologies or download the datasheet:

ms10000_issue_1-00_pnt_x_datasheet.pdf |