GPS Press Releases

11/11/2008 - Spirent® Communications Announces World's First Quasi-Zenith Satellite System for RF Simulation

Spirent's GSS8000 Adds QZSS Support to Existing GPS, Galileo & GLONASS Capabilities

Tokyo - (November 11, 2008) - Spirent Communications plc (LSE: SPT) the leading provider of navigation and positioning test solutions, today announces the world's first RF constellation simulator that supports the Japanese Quasi-Zenith Satellite System (QZSS). Spirent GSS8000 now supports QZSS system in addition to GPS, Galileo, GLONASS and SBAS.

The QZSS system, currently under development, plans to offer three navigation satellites in high-altitude orbits to improve navigation performance in areas of Japan that prove difficult with GPS alone. Spirent will initially provide support for L1 C/A code and L1 SAIF QZSS signals and add other QZSS signals as the market develops. For the first time, developers of QZSS systems-based receivers, systems and applications have a solution that provides controlled, repeatable test signals, essential for accurate testing.

"This announcement demonstrates Spirent's commitment to continue to invest in support of the evolving test needs of the GNSS community," commented John Pottle, marketing director at Spirent's positioning technology division. "The first QZSS satellite is planned for launch in 2009. Our customers can now test receivers, systems and applications that will use the QZSS signals. In addition, Spirent's systems will combine QZSS with GPS and, if required, Galileo and GLONASS to provide a complete GNSS test bed."

Only laboratory simulation can ensure controlled repeatable testing that explores both nominal and off-design conditions. By following a structured test approach, Spirent customers can test multi-GNSS receivers, systems and applications, resulting in shorter development times and improved performance. The Spirent GSS8000 simulation system design allows for a wide variety of configurations from GPS L1 right up to comprehensive multi-RF output and/or multi-constellation test systems.

You can learn more about Spirent's new QZSS test capabilities at the Spirent booth #9 & 10 at the International symposium on GPS/GNSS in Odaiba, Tokyo, 10-14 November 2008.

About Spirent's Positioning Technology Division
Spirent ( is the world's leading provider of GNSS test and simulation systems. In this capacity, Spirent is the first choice of major manufacturers, integrators, test facilities and space agencies worldwide for GNSS testing and simulation solutions. Today, Spirent simulation systems are used throughout the world through a broad range of clients in more than 30 countries across five continents and in over 50 governmental agencies. Spirent delivers navigation and positioning testing equipment and services to all sectors of the navigation and positioning community, from government agencies through to emerging commercial markets.

About Spirent Communications plc
Spirent Communications ( is a global provider of integrated performance analysis and service assurance systems that enable the development and deployment of next-generation networking technology such as Internet telephony, broadband services, 3G wireless, global navigation satellite systems, and network security equipment. Spirent Communications' solutions are used by more than 1,700 customers in 30 countries, including the world's largest equipment manufacturers, service providers, enterprises and governments. Based in Sunnyvale, CA, Spirent Communications has 1,500 employees worldwide.

Spirent Communications plc Ordinary shares are traded on the London Stock Exchange (ticker: SPT). The Company operates a Level 1 American Depositary Receipt ("ADR") programme with each ADR representing four Spirent Communications plc Ordinary shares. The ADRs trade in the US over-the-counter ("OTC") market under the symbol SPMYY and the CUSIP number is 84856M209. Spirent Communications' sales to the United States government are made through Spirent Federal Systems Inc.

Spirent, Spirent Communications and the Spirent logo are trademarks or registered trademarks of Spirent Communications plc. All other trademarks or registered trademarks mentioned herein are held by their respective companies. All rights reserved.

This document may contain forward-looking statements which are made in good faith and are based on current expectations or beliefs, as well as assumptions about future events. You can sometimes, but not always, identify these statements by the use of a date in the future or such words as "will", "anticipate", "estimate", "expect", "project", "intend", "plan", "should", "may", "assume" and other similar words. By their nature, forward-looking statements are inherently predictive and speculative and involve risk and uncertainty because they relate to events and depend on circumstances that will occur in the future. You should not place undue reliance on these forward-looking statements, which are not a guarantee of future performance and are subject to factors that could cause our actual results to differ materially from those expressed or implied by these statements. The Company undertakes no obligation to update any forward-looking statements contained in this document, whether as a result of new information, future events or otherwise.


John Pottle
Spirent Communications
Marketing Director

Sailaja Tennati
Spirent Communications
PR Manager

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