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Trimble Inc.
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Post Office Box 3642
Sunnyvale, CA 94085
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New Zealand to Monitor Land Movement with Trimble GPS

SUNNYVALE, Calif., Nov. 15, 2001 - Trimble (NASDAQ:TRMB) announced today that Land Information New Zealand (LINZ) and the Institute of Geological and Nuclear Sciences Limited (GNS) are using the Company's Global Positioning System (GPS) technology to create a national network to monitor land movement. GNS has purchased 20 Trimble 5700 Continuously Operating Reference Station (CORS) GPS receivers for use in the network and for field work.
LINZ and GNS are using 12 GPS reference station receivers to form a continuous global positioning system (CGPS) network across the North Island of New Zealand. Along with collecting GPS information to monitor the movements of the earth's crust to millimeter accuracy, the network of reference stations will also provide accurate control points to New Zealand surveyors, who will be able to access surveying data through an online bulletin board service.
In addition, eight Trimble receivers are being added to the GNS pool of GPS field systems, which are used for geoscience research and commercial survey work throughout New Zealand.
"A CGPS network is particularly important in a country like New Zealand, where the land is being steadily deformed by the processes of plate tectonics as well as the occasional rapid deformation caused by large earthquakes," said geophysicist Dr. John Beavan, who leads the GNS side of the project. "It will bring New Zealand into line with a number of other countries, most notably Japan, that are using GPS to continuously monitor land movements. The Trimble unit's accuracy, reliability and low power consumption make it an ideal system for our long-term use."
"GPS data from the CGPS stations will produce positional information in close to real-time and with centimeter accuracy," said LINZ project manager Graeme Blick. "The information will be transmitted to a data center and will be available in its basic form free of charge on the Internet - a real benefit to surveyors and other land professionals."
5700 CORS GPS Reference Station System
The standard 5700 CORS system provides reference station data, in both real-time as well as logged internal memory for postprocessing. Applications include deformation monitoring, engineering and construction projects, surveying, geodetic and atmospheric research, mapping and Geographic Information System (GIS) data collection. In addition, the reference station can be used to establish RTK infrastructure including the Trimble Virtual Reference Station (VRSTM) system.
At the heart of the system is an all-new, low-power GPS receiver built around Trimble's latest generation Maxwell 4 ASIC technology which also incorporates WAAS/EGNOS capability. The new chip provides higher speed, longer battery life, better satellite tracking and higher precision in extreme environments and is housed in an extremely rugged, fully-sealed, waterproof, magnesium alloy housing. The receiver is ideal for permanent or temporary installation in all types of conditions.
Trimble's GPS CORS system also breaks new ground with the ZephyrTM Geodetic antenna which utilizes the patented Trimble 4-point antenna feed technology, providing excellent phase center stability as well as enhanced multipath rejection and low elevation satellite tracking. The Zephyr Geodetic antenna also features the 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.
About Trimble's Engineering and Construction Division
The combination of Trimble and Spectra Precision, the world leaders 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 Engineering and Construction Division of Trimble is focusing on the development of technology and solutions in the core areas of machine control, surveying, and construction instruments. 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.

Media Contact:    LeaAnn McNabb of Trimble: 408-481-7808

Investor Relations:    Investor Relations of Trimble: 408-481-6914

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