Symmetricom

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51	PDF Document Add to Reading List Source URL: tf.nist.gov Language: English - Date: 2007-11-08 20:34:42 Physics Horology National Institute of Standards and Technology Time scales SI base units Atomic clock NIST-F1 NIST-7 Symmetricom Measurement Clocks Time
52	PDF Document Add to Reading List Source URL: www.gmat.unsw.edu.au Language: English - Date: 2007-12-08 19:10:13 GPS Avionics Geodesy Global Positioning System Symmetricom GPS disciplined oscillator Phase-locked loop GPS signals Time of arrival Technology Navigation Satellite navigation systems