Press Release

Spirent Federal Announces MNSA Development

June 28, 2017

M-code Simulator

Pleasant Grove, UT, June 27, 2017- Spirent Federal Systems, the nation’s leading provider of GPS and GNSS simulators, announced today the development of MNSA capable GNSS simulators. Spirent Federal is one of the first GNSS simulator manufacturing companies to develop software that will support M-Code using the Modernized Navstar Security Algorithm (MNSA).

M-Code is an updated GPS military signal that is being rolled out as part of the “modernization” of the current GPS constellation. GPS modernization began in 2000 when the GPS Selective Availability (SA) feature was set to zero. Since that time, the US Air Force has been working on newer generation satellites that will transmit new civilian and military signals.

Until now, AES and SDS have been the only methods authorized to be used within a GNSS simulator to produce M-Code. Spirent Federal Systems has provided AES M-code and SDS M-code capable simulators for many years, but as the long awaited MNSA M-code signals become available, Spirent Federal Systems will be making this option available to authorized users on its GSS9000 series simulator.

For further information, contact Spirent Federal at (801)785-1448 or visit the company’s website at

About Spirent Federal Systems

Spirent Federal Systems was formed in July 2001 by Spirent Communications as a wholly owned subsidiary and U.S. proxy company. Spirent Federal markets and sells Spirent Communications' products in North America. The company also provides value-added features and ongoing customer support. Spirent Federal Systems is headquartered in Pleasant Grove, UT, with support and sales offices throughout the US. Follow us on LinkedIn and Twitter.

About Spirent

Spirent Communications plc. (LSE: SPT) is the leading global provider of automated test and assurance solutions for networks, cybersecurity, and positioning. The company provides innovative products, services and managed solutions that address the test, assurance and automation challenges of a new generation of technologies, including 5G, SD-WAN, cloud, autonomous vehicles and beyond. From the lab to the real world, Spirent helps companies deliver on their promise to their customers of a new generation of connected devices and technologies. For more information, please visit and follow us on LinkedIn, Twitter and Facebook.

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