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Trimble Inc.
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Post Office Box 3642
Sunnyvale, CA 94085
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New Zealand Expands GPS Network with Trimble's Next Generation
Reference Station Receivers to Monitor Earthquakes and Volcanoes

SUNNYVALE, Calif., Dec. 23, 2003 -- Trimble (NASDAQ:TRMB) announced today that the Institute of Geological and Nuclear Sciences Limited (GNS) has purchased 40 Trimble NetRSTM reference station receivers to expand continuous global positioning system (CGPS) networks across the North and South Islands of New Zealand.
In 2001, GNS purchased 20 Trimble 5700 Continuously Operating Reference Station (CORS) receivers to create a backbone CGPS network for Land Information New Zealand (LINZ) in the North Island of New Zealand, and for use in GPS campaign surveys. This subsequent purchase of NetRS receivers will be used to expand the LINZ CGPS network into the South Island and begin continuous monitoring of rapidly deforming parts of the country. The GPS information is used to monitor plate tectonic movements in New Zealand related to the Australia-Pacific Plate Boundary as well as volcanic activity in the central North Island.
In addition, the network of reference stations provides accurate control points for monitoring and developing the geospatial infrastructure of the country, as well as for geoscience research and commercial survey work throughout New Zealand. Users can access GPS data from the reference stations through an online bulletin board service.
"GNS chose the Trimble NetRS receiver for its low power consumption, making it well suited for remote, solar-powered sites, and for its Linux-based Internet communications interface," said geophysicist Dr. John Beavan, one of the leaders of the GNS side of the project. "In addition, Trimble's next generation reference station receivers will take advantage of new civilian GPS signals which make them ideal for long-term use."
About the Trimble NetRS Reference Station Receiver
The Trimble NetRS is the latest in a long line of innovative GPS reference station and infrastructure solutions. The Trimble NetRS features the company's new R-track technology, which includes the capability of tracking the new Civil Signal (L2C), scheduled to be available on certain GPS satellites in 2004. It is designed for use with Trimble's scalable infrastructure solutions and as a Continuously Operating Reference Station (CORS) for geodetic, survey, high accuracy GIS and monitoring applications.
The Trimble NetRS GPS receiver is a powerful, dependable receiver designed for a range of high precision and monitoring applications. The receiver offers ease of use, low power consumption, R-track technology for L2C signal tracking, Ethernet connectivity, advanced data management capability, and a rugged design all of which makes it an extremely flexible product, ideal for Trimble's portfolio of scalable infrastructure solutions.
With Internet Protocol as the primary communications mechanism, the Trimble NetRS GPS receiver can be accessed and fully controlled remotely using simple Internet browsers or Trimble infrastructure software. The Trimble NetRS uses the Linux framework, which allows for extension and customization that is simply not possible with proprietary operating systems. Network management features of the Trimble NetRS include the ability to store one receiver's data configuration to a file and restore it to the same receiver at a later date or clone the information to other receivers within a network.
The NetRS GPS receiver uses the Trimble Zephyr GeodeticTM antenna, featuring Trimble's patented 4-point antenna feed technology and patented Trimble StealthTM Ground Plane technology. This revolutionary design mitigates multipath signals using technology similar to that used by Stealth aircraft to hide from radar, making it ideal for high precision infrastructure and monitoring applications.
About Trimble's Geomatics and Engineering Business
Trimble, a world leader in GPS, construction lasers, robotic total stations and machine control solutions, is creating a broad range of innovative solutions that will change the way construction work is done. The Geomatics and Engineering Business of Trimble is focusing on the development of technology and solutions in the core areas of surveying, construction and GPS infrastructure. From concept to completion, Trimble's integrated systems streamline jobs and improve productivity.
About Trimble
Trimble is a leading innovator of Global Positioning System (GPS) technology. In addition to providing advanced GPS components, Trimble augments GPS with other positioning technologies as well as wireless communications and software to create complete customer solutions. Trimble's worldwide presence and unique capabilities position the Company for growth in emerging applications including surveying, automobile navigation, machine guidance, asset tracking, wireless platforms, and telecommunications infrastructure. Founded in 1978 and headquartered in Sunnyvale, Calif., Trimble has more than 2,000 employees in more than 20 countries worldwide.
Investor Relations Contact:   Investor Relations of Trimble: (408) 481-6914
Media Contact:   LeaAnn McNabb of Trimble: 408-481-7808

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