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April 10, 2013 - Intended for government agencies and metrology laboratories, Precise Time-Scale System establishes regional, national, and global timing references in one instrument rack, without need for various system components from multiple vendors. System delivers local coordinated universal time in time scale with frequency accuracy of ±1E-14 and time accuracy to 10 ns RMS to UTC. System comes with measurement hardware/software, real-time clock with variety of outputs, database server, and battery backup.

Symmetricom Offers Precise Time-Scale System with Leading-Edge Performance in a Single Rack

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Symmetricom Inc.
2300 Orchard Pkwy.
San Jose, CA, 95131

Press release date: April 2, 2013

Turnkey timing system establishes reliable and highly accurate regional, national, and global timing references

SAN JOSE, Calif., -- Symmetricom(®), Inc. (NASDAQ: SYMM), a worldwide leader in precision time and frequency technologies, today introduced the Precise Time-Scale System, an industry leading, turnkey timing system that allows government and national metrology laboratories to easily establish a highly precise and reliable timing reference without the need for various system components from multiple vendors and complex customization. The Precise Time-Scale System comes completely operational in a unit as small as one instrument rack, offering industry-leading frequency stability and phase noise performance from a convenient, single source. This translates into ease of operation, lower cost of ownership and trouble-free maintenance during the life cycle of the system.

For government agencies and metrology laboratories responsible for establishing a reliable and accurate timing reference for national or international time keeping, precision time-scale system performance and reliability are mission-critical needs. Historically, such systems required components from multiple vendors, resulting in unpredictable performance, and complex integration and on-going management. The Symmetricom Precise Time-Scale System delivers local coordinated universal time (UTC) in a time scale with state-of-the-art stability and phase noise configured to perform in a single rack that is easy to use and manage around the world.

Key features of the Precise Time-Scale System include:
--  Multi-channel measurement
--  A high performance Cesium clock
--  Frequency accuracy of +/-1E-14
--  Time accuracy to 10ns RMS to UTC
--  World-class KAS 2 time-scale algorithm that estimates time error of clocks
--  Easy-to-use graphical user interface (GUI)

The Precise Time-Scale System comes with measurement hardware and software, a real-time clock with a variety of outputs, a database server, battery backup equipment, as well as on-site installation and training provided by Symmetricom. In addition, the system can be upgraded to add two additional Cesium clocks to the rack and three Cesium or MHM2010 Active Hydrogen Clocks externally to improve the system's overall performance.

"By leveraging the world's most widely adopted frequency standards for UTC generation, Symmetricom's Precise Time-Scale System offers best-in-class timing accuracy," said Dr. Samuel Stein, chief scientist at Symmetricom. "Whether used by national metrology labs or government agencies, this is an ideal solution for cost-effectively maintaining a reliable timing reference for use in a region."

The patented KAS-2 time-scale algorithm that is used in the Precise Time-Scale System is currently operating in more than 25 installations worldwide. To learn more about the Symmetricom Precise Time-Scale System, please visit:

About Symmetricom, Inc.
Symmetricom (NASDAQ: SYMM), a world leader in precise time solutions, sets the world's standard for time. The company generates, distributes and applies precise time for the communications, aerospace/defense, IT infrastructure, power and metrology industries. Symmetricom's customers, from communications service providers and network equipment manufacturers to governments and their suppliers worldwide, are able to build more reliable networks and systems by using the company's advanced timing technologies, atomic clocks, services and solutions. All products support today's precise timing standards, including GPS-based timing, IEEE 1588 (PTP), Network Time Protocol (NTP), Synchronous Ethernet and DOCSIS(®) timing. Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit: or join the dialogue at

Symmetricom Contact:
Tracy Schriver
Symmetricom, Inc.
t: 408-964-7649
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