gpstime.com
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GPS TIMEWelcome!To learn about CNS Systems' commercial products see our other Web site at www.cnssys.com. There you will find information on:>CNS ClocksIRIG Time Code GeneratorTac32, Tac32Plus and Tac32Multi softwareGPS antennas and coax cableand much more ...FunDo you remember Nixie tube displays. Clickhere to see your computer's time displayed on Nixie Tubes.Recent Publications:Timing for VLBI (updated 2015) presented at the International VLBI Service for Geodesy and Astrometry (IVS) Technical Operations Workshop (TOW) meeting on May 4-7, 2015 at MIT Haystack Observatory by Katie Pazamickas, EXELIS; Dr. Tom Clark, NVI; and Richard M. Hambly, CNS Systems, Inc.Click here to download the viewgraph presentation here.Click here to download the PDF version of the presentation.Archived Publications:Timing for VLBI (updated 2013) presented at the International VLBI Service for Geodesy and Astrometry (IVS) Technical Operations Workshop (TOW) meeting on May 6-9, 2013 at MIT Haystack Observatory by Dr. Tom Clark NVI/NASA GSFC and Richard M. Hambly, CNS Systems, Inc.Click here to download the viewgraph presentation here.Click here to download the PDF version of the presentation.Low cost GPS-based time and frequency products, an update presented at the 44th Annual PTTI Meeting on November 26 - 29, 2012 in Reston, Virginia, USA.ABSTRACT: The performance of low cost GPS-based time and frequency products continues to improve. Our initial use of these products was to provide a cost effective solutions to the problem of epoch synchronization and performance monitoring of the hydrogen masers at isolated stations in the global Very Long Baseline Interferometry (VLBI) network. Now these products are also used in a wide variety of applications such as providing network time for CDMA cell sites and secure isolated data networks, providing general purpose high accuracy timing at isolated locations, synchronization of RF transmitters for shared spectrum applications etc.Motorola and iLotus GPS timing modules (the VP, UT+, M12+ and M12M series) have been the basis for many timing products over the years. The latest of these, the M12M, is now a mature product although an end of life has not been announced. We report here on a new OEM module that has been developed to replace these aging units maintenance of existing and current production products and in new applications. This module is designed as a drop in replacement that is functionally, mechanically and electrically equivalent to the M12M. To insure compatibility, it emulates the Motorola commands and messages. These new modules are based on the uBlox 6T GPS engine. In addition to compatibility with the M12+ and M12M, the receiver offers programmable xPPS signals, smaller quantization errors due to higher clock speed, quantization corrections reported with picoseconds resolution, and a 50-channel engine. These new u-blox based M12 compatible OEM modules are available now and are priced competitively with the or
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