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Trimble Navigation Limited
935 Stewart Drive
Post Office Box 3642
Sunnyvale, CA 94085
1.408.481.8000 phone
1.408.481.7781 fax

  NEWS RELEASE

 
Trimble Introduces Acutime 2000 GPS Smart Antenna for
Precise Timing

NEW ORLEANS, Feb. 28, 2000 -- Trimble (NASDAQ:TRMB) introduced today its Acutime™ 2000 GPS smart antenna for precise timing and position accuracy. Using Trimble's latest chipset and Global Positioning System (GPS) receiver architecture, the Acutime 2000 provides a simple and cost effective solution for integrating GPS into any communication or mobile system.
 
The announcement was made at CTIA's Wireless 2000 Convention.
 
The Acutime 2000 GPS smart antenna builds on Trimble's experience gained by the deployment of over 42,000 smart antennas in the field. Using a newly designed exterior and an ultra-tight seal, it enables easy GPS integration for applications including:
 
Synchronization of paging, cellular and radio networks
Fault detection systems
Locating mobile assets
Marine navigation
 
"The Acutime 2000 GPS smart antenna builds on the company's nine years of experience with the Acutime and Palisade smart antenna families," said Dennis Workman, Trimble's vice president of Component Technologies. "We've combined the low cost of the Acutime family with the high-performance of the Palisade family to create the most reliable, and cost competitive integrated timing and position source on the market. The Acutime 2000 smart antenna is the perfect solution to easily integrate GPS into a broad range of systems or applications."
 
Trimble's smart GPS antenna provides a time and position source that includes a receiver, antenna, and power supply, all contained within the unit. Once the unit is powered up, the Acutime 2000 automatically tracks satellites and surveys its position to within meters. It then switches to overdetermined time mode and can generate a pulse-per-second-second (PPS) synchronized to UTC within +/- 100 nanoseconds (one sigma). The unit outputs a timing packet for each pulse.
 
The Acutime 2000 can also be set to use Trimble's proprietary TimeTrigger™ technology. The GPS smart antenna receives a pulse from the host system; it responds back to the host with a time tag. TimeTrigger technology enables a user to utilize precise GPS timing without introducing latencies associated with using a customary PPS output.
 
Designed for long-term reliability, the Acutime 2000 can operate in extreme operating temperatures (-40 to +85 degrees Celsius) and hostile RF-jamming environments typically encountered at wireless network transmitter sites. It requires only 110mA at 12 volts (nominal), and outputs Trimble's standard interface protocol (TSIP) or industry-standard NMEA.
 
The Acutime 2000 is available in a number of configurations to suit a variety of operational environments. The standard Acutime is an 8-channel receiver, and a premium option is also available with 12 channels. The interface is available in either RS-422/485 (for long cable runs required by building or towers) or RS-232.
 
The starter kit includes the Acutime 2000 antenna (RS-422/485), 100 foot interface cable, user guide, RS-422 to RS-232 converter and a Windows software tool for monitoring and communication.
 
The Acutime 2000 GPS smart antenna is expected to be available in the second quarter of 2000.
 
About Trimble GPS Timing
 
With the expansion of data and communications networks, Trimble GPS is keeping the world in sync. Trimble offers precise time and frequency products for CDMA, TDMA, GSM, paging, Wireless Local Loop, TCP/IP and 3G applications. Twenty years of experience allow Trimble to take GPS receivers and disciplined clocks to higher levels of integration, providing a cost benefit to customers.
 
About Trimble
 
Trimble is a world leader in designing and developing innovative products enabled by GPS technology. The company provides end-user and OEM solutions for diverse applications including surveying, mapping/GIS, agriculture, construction, mining, military, commercial aviation, automotive, vehicle tracking and timing. Founded in 1978, Trimble now holds more than 250 U.S. patents on GPS and related technology, with over 200 additional patents pending. Located in Sunnyvale, Calif., Trimble has been adding value to GPS since 1984.
 
Media Contact:    LeaAnn McNabb of Trimble: 408-481-7808



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