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News & Media

NavCom's Software now has RTK Extend™, SureNav™, and SET Corrections

Torrance, CA – September 22, 2004 – NavCom Technology, a wholly owned subsidiary of Deere & Company (NYSE:DE), announced today the availability of version 3.0.0 Global Positioning System (GPS) software. This latest software version provides a number of significant product features such as RTK Extend, a technology that combines the capabilities of the StarFire™ positioning system with RTK to overcome the problem of communication dropouts. The software also provides NavCom’s proprietary SureNav feature which ensures optimal navigation mode selection for increased positioning accuracy. Additionally, the software utilizes Solid Earth Tide corrections, giving users more accurate height measurements in high-accuracy positioning applications.

RTK Extend combines the StarFire global positioning system with RTK to eliminate the problem of communication dropouts. Obstacles such as hills, trees and buildings can interrupt the communication link to the base station, thus preventing a traditional RTK system from producing a position fix. The RTK Extend feature overcomes this problem by continuously computing both RTK and StarFire solutions simultaneously. During periods of successful RTK operation, the system keeps the back-up StarFire solution locked to the RTK solution until needed. When the communications link is lost, StarFire allows the receiver to continue producing RTK accurate position solutions for several minutes.

SureNav intelligently evaluates all available information including (but not limited to) the quality of available measurements, obtainable correction data and satellite geometry to optimize system performance. The system constantly evaluates navigation mode selection thus allowing it to transition between navigation modes more smoothly. SureNav can continue to use satellite measurements even when L2 is lost due to shading from foliage or partial blockage from structures. The system will also intelligently evaluate all combinations of single or dual frequency, 2D or 3D, type of corrections available including WAAS/EGNOS, StarFire and RTK to select which of the 16+ different operating modes will optimize performance.

The Solid Earth Tide corrections feature includes the highly accepted Sinko solid earth tide model that has been adapted to run in real time. The position solution can be automatically adjusted for the effects of solid earth tides in both horizontal and vertical dimensions. Adjusting for Solid Earth Tides is highly beneficial as the earth tides can affect the GPS height measurement accuracy by as much as 30 cm over the lunar cycle of new moon to full moon.

“We are pleased to provide our clients with our latest technology, GPS software version 3.0.0. This new software gives our customers tools such as RTK Extend, SureNav, Earth Tide Corrections and several other enhancements for their NavCom GPS Products,” said Steve Wilson, Business Manager of GPS Products for NavCom Technology. “It is our goal to continue to provide turnkey system solutions for our customers, enabling them to enhance their existing businesses or create new businesses within their application markets. With our continued efforts to provide the latest and innovated technologies, we ensure they can do just that.”

Pricing and Availability

Version 3.0.0 software upgrade is available to all NavCom customers free of charge for any GPS product under warranty. Customers with products that have an expired warranty should contact their NavCom Dealer for information on software upgrade availability and pricing. Software version 3.0.0 will come as standard software for all NavCom GPS products starting October 2004.

About NavCom Technology, Inc.

NavCom Technology, Inc., a John Deere Company (NYSE:DE), is a leading provider of advanced GPS products for OEMs, VARs and system integrators needing high performance RTK systems, global decimeter level GPS satellite corrections, geodetic quality GPS receivers, wireless communication products and engineering consulting in the areas of precise positioning, wireless communications and robotics. For more information on NavCom Technology and its products, please visit www.NavComTech.com.

Marketing Communications
NavCom Technology, Inc.
Tel: (310) 381-2000 x2852
Fax: (310) 381-2001
E-mail: pr@navcomtech.com

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