TrueTime Now Ships SAASM-Based Time and Frequency Receiver to Department of Defense and Authorized U.S. Allies.

Business Editors & High-Tech/Defense Writers

SANTA ROSA, Calif.--(BUSINESS WIRE)--May 13, 2002

TrueTime's Mark V Delivers GPS SAASM P(Y) Code Time and Frequency

TrueTime Inc. (Nasdaq:TRUE), the leading provider of precision time and frequency products to the U.S. Government, today announced that TrueTime's Mark V time and frequency receiver has been introduced with GPS SAASM receiver.

The Mark V receiver incorporates Selective Availability Anti Spoofing Module (SAASM) P(Y) Code Precise Positioning Service (PPS) technology and provides it to the Department of Defense (DoD) and authorized U.S. allies. TrueTime has supplied the DoD with ultra precise Mark V GPS P(Y) code receivers since 1997.

The next generation Mark V takes full advantage of the precision, accuracy and anti-spoofing capabilities of the SAASM P(Y) Code. The 12-channel, all in-view receiver corrects for Selective Availability and provides direct Y-code acquisition. The Mark V is augmented with Receiver Autonomous Integrity Monitoring (RAIM) Fault Detection and Exclusion per RTCA DO-229 to protect against satellite/system anomalies and spoofing. Using TrueTime's Mark V, the DoD and authorized Government customers can obtain the most reliable GPS-based timing possible with accuracy better than 10 nanoseconds to Universal Time Coordinated (UTC).

"The addition of SAASM approval enhances our capabilities to serve the vital needs for national security. We are very proud to once again be chosen as a preeminent supplier to the U.S. Government for our robust time and frequency products. Our next generation Mark V SAASM-based receiver provides the security, reliability and serviceability that our customers demand," said Scott Davis, TrueTime's director of instrumentation sales.

The superior performance levels achieved by the 1U (1.75-inch) rackmount Mark V are the result of a strategy based on accurate position determination, dual frequency GPS tracking, system integrity monitoring, multi-satellite ensembling techniques and a high-stability ovenized oscillator. Standard timing outputs from the Mark V include a 1 Pulse Per Second accurate to less than 10 nanoseconds rms to GPS/UTC, analog IRIG B time code and serial I/O time strings. Using the keypad or RS-232 port, users have control over a variety of time formats, configurations and output options, including GPS and oscillator status and controls.

The modular backplane architecture of the Mark V supports multiple time and frequency output options to address specific needs. These plug-in output modules can be incorporated at any time and significantly increase the clock adaptability to changing mission requirements. The base models support up to four single-height plug-in modules. Using the optional 3.5-inch high chassis, up to 10 single-height modules can be accommodated. Remote control over a local network is easy using TrueTime's Telnet network interface plug-in option. Using Telnet, users can remotely check the status and/or configure the Mark V. Most operations possible via the RS-232 port are also possible via Telnet. The network interface option supports Dynamic Host Configuration Protocol (DHCP) so that no user intervention is required for the Mark V to be network ready. Password protection is provided to maintain secure access to the unit.

The Mark V is also available in an airborne configuration.

For more information on TrueTime and its innovative timing and synchronization solutions, visit the TrueTime Web site at www.truetime.com.

About TrueTime:

TrueTime Inc. designs, develops, manufactures, and markets precision time and frequency products that are essential components used by many technology-based markets to provide greater accuracy and resolution than can be obtained from conventional timing devices. TrueTime Inc. is traded on the NASDAQ National Market System under the symbol "TRUE." TrueTime's Web site is http://www.truetime.com.

This press release includes "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21 E of the Securities Exchange Act of 1934. All statements other than statements of historical fact included herein, including statements regarding potential future products and markets, the Company's future financial position, business strategy and other plans and objectives for future operations, are forward-looking statements. Additional important factors that could cause actual results to differ materially from the Company's expectations are disclosed in the Company's Form 10-K for the year ended September 30, 2000 and in quarterly reports in form 10-Q on file with the SEC, under the heading "Risk Factors" and elsewhere. In particular, without exclusion of other risks, the success of our business involves the risks of successful strategic agreements and entrance into new market segments, technological changes, strong competition and dependence on component suppliers, government spending and the general growth and success of the industries and customers we serve. Further, all written and verbal forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by such factors.