SYMM Symmetricom, Inc. (MM)

Symmetricom, Inc. (NASDAQ: SYMM), a worldwide leader in precise time and frequency technologies that accelerate the deployment and enable the management of next generation networks, today announced that Dr. Samuel Stein, chief technologist, and Dr. Robert Lutwak, senior scientist for Symmetricom�s Timing, Test & Measurement Division, are invited speakers at the 34th Annual NIST Time and Frequency Metrology Seminar, Tuesday, June 2 � Friday, June 5, 2009. Located at the National Institute of Standards and Technology (NIST) Laboratories, the 4-day seminar will discuss characteristics of clocks and oscillators, making precise time and frequency measurements and synchronizing precision time systems.

WHO:

� Dr. Samuel Stein, chief technologist and Dr. Robert Lutwak, senior scientist at Symmetricom�s Timing, Test & Measurement Division �

WHAT:

34th Annual NIST Time and Frequency Metrology Seminar �

WHEN:

Tuesday, June 2 � Friday, June 5, 2009 �

WHERE:

NIST Boulder Laboratories, 325 Broadway, Boulder, CO 80305

Dr. Stein will be presenting, �Digital Measurements of PM-Noise of Precision Oscillators� on Wednesday, June 3, from 11:00 a.m. � 12:00 p.m. MDT. Digital phase noise measurements are made by converting RF signals to digital samples. The use of numerical techniques for phase detection and analysis improves measurement accuracy and allows simultaneous evaluation of phase noise and short-term stability. Prior to joining Symmetricom in 2006, Dr. Stein was the founder, president and CEO of Timing Solutions Corporation. He has over 30 years of experience in the time and frequency field and has made numerous contributions to precision time measurement technology and new time transfer techniques.

Dr. Lutwak will be presenting �An Introduction to Atomic Frequency Standards� on Thursday, June 4, from 8:15 a.m. � 9:00 a.m. MDT. Atomic frequency standards provide the ultimate source of accuracy and stability for all modern communications, navigation and time-keeping systems. His presentation will have a particular emphasis on mature technologies including rubidium oscillators, cesium beam frequency standards and hydrogen masers. Dr. Lutwak worked for NIST prior to joining Symmetricom�s Technology Realization Center. He has led projects developing next generation atomic clock technology for deployment onboard the GPS-NAVSTAR satellite constellation as well as chip-scale atomic clocks, 100 times smaller and lower power than existing technologies.

For more information on the NIST Time and Frequency Seminar, visit: http://nistboulder.net/Seminar34.htm.

For more information on Symmetricom frequency references, visit: http://www.symmetricom.com/products/frequency-references/.

About Symmetricom, Inc.

As a worldwide 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), Precision Time Protocol (IEEE 1588), 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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