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LE34 Establishes Infrastructure in Denmark with Trimble GPS

Trimble GPS and Virtual Reference Station Software to Offer Reliable, High-Precision Services for GPS Users

SUNNYVALE, Calif., Oct. 24, 2001 - Trimble (NASDAQ:TRMB) announced today it has supplied Global Positioning System (GPS) reference stations and Virtual Reference Station (VRS) software to LE34 Tele A/S to establish, which provides networked real-time kinematic (RTK) services across Denmark. The core infrastructure service is monitored and operated by LE34. GPS users throughout Denmark can utilize the services for surveying, construction, navigation, asset management, agriculture and forestry.
The establishment of follows other Trimble infrastructure project successes. These include: the Japanese Geographical Survey Institute Nationwide Network, VRS network in Switzerland for the Swiss government, GPS reference stations for the General Lighthouse Authority Network around the coast of Great Britain, the Channel Tunnel Rail Link RTK Network, and the Zurich International Airport Expansion Project.
The GPS network, called consists of 26 Trimble GPS reference stations, Trimble GPSNetTM, RTKNetTM, Webserver software and a communications infrastructure. Installation of the Reference Stations was completed early in 2001 and the service is now operational and available to subscribers.
The software links the GPS reference stations and enables centimeter-level positioning without the need to set up a local reference station. Users can achieve long-range RTK precision over greater distances via wireless communications in the field. Trimble Terrasat developed the VRS software suite.
The VRS software consists of a network of Trimble GPS receivers communicating with a control center to calculate GPS error corrections that are applicable over a wide area. These error corrections are transmitted via GSM cellar telephones to users in the field within the network area. Additionally, users can retrieve stored GPS correction data from the control center via the Internet for post-processing.
VRS technology overcomes previous limitations with high precision GPS. The system significantly reduces systematic errors in the reference station data to improve reliability and operating range. This allows a user to increase the distance at which the rover receiver is located from the physical reference stations while improving on-the-fly (OTF) initialization times. Traditionally, for precise GPS applications-surveying, construction, precision farming and high accuracy Geographic Information System (GIS)-roving receivers required a reference station within 10 kilometers to ensure centimeter level accuracy. With VRS, users within the reference station network can operate consistently at greater distances without degrading accuracy.
About LE34 Tele A/S
LE34 TELE A/S is a subsidiary to Landinspektrfirmaet LE34 - the largest surveying company in Denmark. The company was formed in mid 1998 in order to carry out the future tasks within the telecommunication field.
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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

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