Symmetricom®, Inc. (NASDAQ: SYMM), a major supplier of precise time and frequency technologies, today announced the Time-Scale System, a fully integrated world-class redundant nanosecond level timing solution. Designed for international metrology, aerospace and defense customers, the system combines multiple high-performance atomic clocks in a time scale that drives a local real-time clock (RTC). Comparable to the world’s best national laboratories that compute a local time scale steered to agree with Universal Coordinated Time (UTC), the Time-Scale System is ideal for national timing laboratories in countries that need to establish traceable time. It is also designed for government or civilian agencies that require precision timing capabilities independent of a Global Navigation Satellite System (GNSS).

“Symmetricom’s multi-clock turn-key system provides a real-time local UTC time scale, applying the most accurate GNSS and SatCom techniques for measuring offsets between geographically dispersed clocks,” commented Dr. Samuel Stein, chief technologist at Symmetricom’s Timing, Test and Measurement Division. “Our solution offers performance equivalent to national timing labs with fast deployment, low ownership costs and a single point of responsibility for all system support. As the only supplier that owns all the IP for the steering algorithm and manufactures the instruments and clocks necessary to build these complex timing systems, Symmetricom is able to deliver a standard system in less time as we only have to integrate the hardware and perform system tests.”

The Time-Scale System’s unique set of design features enables industry-leading frequency stability, phase-noise performance and reliability in a system fully integrated into one or more instrument racks. A timing quality GNSS receiver provides information used to steer the system output to UTC and generates common view data so that the multiple clocks can be reported to the International Bureau of Weights and Measures (BIPM) for inclusion in the international time scale. The system can also be steered to UTC using two-way satellite modems.

Benefits of the Time-Scale System include:

  • Clock Redundancy – includes multiple high performance clocks (Cesium and/or Hydrogen Maser) as well as a method to periodically compare clocks and steer the system output using time transfer techniques for ultimate reliability
  • Traceable Time – UTC (local) time and the individual clock times are reported to the BIPM so the clocks become part of the international time composite that is UTC. Symmetricom’s KAS-2 time-scale algorithm provides optimum real-time estimates of the time of each clock. Its advantage over every other time-scale algorithm is its use of two weights per clock to optimize both the short and long-term stability of the local time scale.
  • Modular Solution – ability to cost-effectively plug and play components to tailor the solution to a specific need; Symmetricom offers a variety of frequency standards and configuration options
  • Resident Expertise – with Symmetricom’s resident expertise, customers do not require a high-level in-house technologist to install, maintain and support the system

Locations that desire to be incorporated in UTC must have precision clocks and must follow rules established by BIPM for calculating and reporting the clock data. Symmetricom’s Time-Scale System includes the hardware and software required to meet these important requirements.

Availability

The Commercial Time-Scale System is currently available.

For more information, visit:

http://www.symmetricom.com/products/time-frequency-distribution/time-frequency-systems/Commercial-Time-Scale-System/.

About Symmetricom, Inc.

As a leader in precise time and frequency products and services, Symmetricom provides “Perfect Timing” to customers around the world. Since 1985, the company’s solutions have helped define the world’s time and frequency standards, delivering precision, reliability and efficiency to wireline and wireless networks, instrumentation and testing applications and network time management. Deployed in more than 90 countries, the company’s synchronization solutions include primary reference sources, building integrated timing supplies (BITS), GPS timing receivers, time and frequency distribution systems, network time servers and ruggedized oscillators. Symmetricom also incorporates technologies including Universal Timing Interface (UTI), Network Time Protocol (NTP), IEEE 1588 (Precision Time Protocol), and others supporting the world’s migration to Next Generation Networks (NGN). Symmetricom’s QoE video quality management solutions provide the tools necessary to accurately monitor and analyze video quality and bring higher satisfaction levels to the end user. Symmetricom is based in San Jose, Calif., with offices worldwide. For more information, visit http://www.symmetricom.com.

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