LNCS 4280 - {\bfseries Best Paper: } Stabilizing Clock Synchronization ...

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x close ProductsOverviewGPS SolutionsTelecom Primary Reference SourcesTimeSource 3000TimeSource 3100TimeSource 3500TimeSource 3600TimeProvider 1000TimeProvider 5000TimeGPSPRS Product OverviewPRS Selection GuideGPS Time & Frequency ReceiversXLiXL-GPSXLi SAASM GB-GRAM 4370A DVB Sync Source TSC 44004410A 4411A XLi FAQTime Code & DisplaysTymMachine 7000Network Time DisplaysRemote Time DisplaysBus Level Timingbc635PCI-V2bc637PCI-V2bc635-637-V2 Windows SDKbc635-637-V2 Linux Softwarebc635-637-V2 Solaris Softwarebc635PCI-Ubc637PCI-Ubc635-637-PMCbc635-637CPCIPCI-U-PMC-CPCI Windows SDKPCI-U-PMC-CPCI Linux SWPCI-SG 2UGPS-PCI 2UPCI-SG 2U and GPS-PCI Windows SDKTTM635-7VME and TTM350-7VXIPC03Vbc824VXIbc635-7VME and bc350-7VXIVME-SG 2bc620-627ATCustomer Source SW DownloadsPCI Comparison ChartGPS Timing SubsystemsTimeMAXCustom SubsystemsAccessories58534A GPS Timing AntennaAntenna Cables58529A GPS Line Amplifier with L1 Bandpass Filter58532A GPS L1 Reference AntennaGPS Active SplittersGPS Lightning ArrestorsTime & Frequency DistributionModular Distribution Solutions56000System 2000System 3000Universal Time Code GeneratorAdvanced Timing Solutions Fiberoptic Expansion ChassisTSC 4340AAdvanced Timing Solutions Time Code Translator1U Distribution Solutions6502B96115087B4033A4036B4037A4059B4091ATime & Frequency SystemsMulti-Channel Measurement System (MMS)Advanced Timing Systems UTC Recovery SystemBITS/SSUTimeHub 5500SSU 2000SSU 2000eRTHC CardTimeProvider 5000TimeProvider 1000Intelligent Management SystemsTimePictraTimeScanTimeWatchDOCSIS SolutionsTimeCreator 1000 DTI ServerDTI Client Reference Design KitFrequency ReferencesCesium Frequency Standard5071ACs4000CsIIIDRCBTTimeCesium 4400TimeCesium 4500Rubidium Frequency Standard8040CSA22cSA22c-LNSA3Xm8130AQuartz Frequency Reference1050A1000B4145BActive Hydrogen MaserMHM 2010AOG-110High Reliability/Ruggedized Sources82008130A940095009210B92509633960097009800992099409960NTP ServersNTP Network AppliancesSyncServer S200SyncServer S250SyncServer S300SyncServer S350NTS-150Domain Time IIAudit ServerNetwork Time DisplaysSynchronizing IT Enterprise Time FAQsFirmware Downloads - NTP SolutionsTime Server Selector AssistantModular NTP SolutionsTimeSource 3000TimeSource 3100TimeSource 3500TimeSource 3600TimeProvider 5000TimeHub 5500SSU 2000SSU 2000eNTP Blades for TimeHubNTP Blades for SSU 2000PRS Product OverviewPRS Selection GuideQoE AssuranceV-FactorAnalyzers & Probes Management Software: Q-Advisor Software Agents: Q-AgentsTriple PlayAnalyzers & ProbesManagement Software: Q-AdvisorSoftware Agents: Q-AgentsIEEE 1588 / PTP Servers1588 Measurement & ValidationXLi IEEE 1588 GrandmasterModular PTP SolutionTimeProvider 5000TimeProvider 500 (Translator)Test and MeasurementPhase Noise & Allan Deviation Test Sets5120A Test Set5115A Test SetGlobal ServicesTTM ServicesMaintenanceTrainingInstallationTSD ServicesAudits, Consulting and Special ProjectsEngineering & InstallationTrainingMaintenanceProducts A-ZIndustry SolutionsOverviewTelecom Service ProvidersNetwork Equipment ManufacturersCable OperatorsGovernment / Aerospace & DefenseEnterprise ITEnergy/UtilitiesBroadcast InfrastructureSupportSupport OverviewOnline SupportTechnical Support RequestTiming, Test, and Measurement Support RequestTelecom Solutions Technical Support RequestEuropean Market Technical Support RequestGeneral Technical Support RequestTiming, Test, & Measurement SupportField Service BulletinsTiming, Test and MeasurementProduct Change NoticesTiming, Test and MeasurementProduct Discontinuance BulletinsProduct Discontinuance FAQTiming, Test and Measurement ProductsProduct ManualsSubscription for NotificationSoftware DownloadsSoftware DownloadSoftware Downloads - MIBSoftware - MIBTelecom Solutions SupportField Service BulletinsField Service BulletinProduct Change NoticesProduct change NoticeProduct Discontinuance BulletinAdditions and Maintenance (A&M) DetailsProduct ManualsManualSubscription for NotificationChange ProfileTSD Tech Support RequestRequest a RepairSoftware DownloadsSoftware DownloadsGuide to Product Lines by DivisionWEEE & RoHS InitiativesWEEE RecyclingWEEE Recycling Request FormPhone SupportOrder StatusCONNECTED LoginCONNECTED User GuideCONNECTED FAQsWarranty & RepairRepair and Replacement InformationRequest a RepairTSD Repair RequestTTM Repair RequestGeneral Repair RequestMD Price Increase NoticeAdvance Replacement PolicyWarranty NoticeResourcesResources OverviewDownload LibraryApplication NotesQoE AssuranceWhite PapersQoE AssuranceWebcastsPodcastsInformation KitsMobile BackhaulTimeProvider 5000 and the Precision Time ProtocolDeploying Reliable DOCSIS SynchronizationPreparing Sync-ESymmTimeLMCheck SoftwareDomain Time II SoftwareDomain Time II Audit ServerCatalog RequestGlossary & FAQsTelecommunications GlossaryTTM GlossaryNetwork Timing GlossaryNetwork Timing FAQTopics In Depthe-NewslettersSubscribeJust a Second ArchivesThinkSync! 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Because millions of people put their trust in our precision and reliability we build our products to withstand the most hostile and demanding environments. Timing and frequency control technology from Symmetricom enables the successful deployment of critical communications, command and control systems as well as rigorous test and measurement applications. Our comprehensive timing and frequency solutions meet or exceed the challenging requirements of secure mobile and global communications, satellite ground stations and satellites in orbit, metrology laboratories, C4ISR effectiveness, and air and sea navigation.

Avionics and Space
Critical and tactical aerospace applications like radio navigation, satellite transmission, and tracking and guidance systems depend on the ability to continuously and unambiguously identify reference points in time and space. Designed for relative ease of use and absolute success under the most adverse conditions, our cesium and militarized oscillator standards address and exceed the most complex and extreme high reliability requirements.

Defense
Symmetricom’s hydrogen, cesium and rubidium standards, and quartz oscillators support more military communications, satellite ground stations, and test & measurement applications than any other precision frequency references in the world. We are in the forefront of new timing and synchronization solutions for communications and satellite and ground based instrumentation, with our products meeting the stringent framework requirements of C4ISR and DoDAF.

Products for Government/Aerospace & Defense
Frequency References

An unequaled installed base, with a 30-year operational track record. Symmetricom’s precision frequency standards deliver exceptional performance and unsurpassed accuracy, stability and reliability in the most challenging of environments. Our hydrogen, cesium and rubidium standards, and quartz oscillators have supported more military communications, satellite ground stations, metrology laboratories and test & measurement applications than any other precision frequency references in the world.

Cesium Frequency Standard

Rubidium Frequency Standard

Quartz Frequency Reference

High Reliability/Ruggedized Frequency Source

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20,000 kilometers over the earth, Global Positioning Satellites with Symmetricom GPS & Time Code Instrumentation on board provides precise time and frequency crucial to the operation of communications, satellite, and ground based instrumentation.

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Bus Level Timing

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Accessories

  Test and Measurement

Our digital, state-of-the-art test sets revolutionized the way phase noise and ADEV measurements are made. Thanks to Symmetricom Test and Measurement equipment, what was once a complicated and costly procedure has now been made easier, more accurate, and more cost effective.

Phase Noise and Allan Deviation Test Sets

1588 Measurement and Validation Solutions

  Time and Frequency Distribution

Highly precise, extremely reliable. Symmetricom’s time and frequency distribution receivers and amplifiers provide accurate centralized reference signals with the best quality, lowest noise and the most uptime to an assortment of communication infrastructures.

Modular Distribution Systems

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Time and Frequency Systems

 

White Papers
The Long-Term Stability of the U.S. Naval Observatory's Masers (PTTI Conference 2004) (PDF)

 

Symmetricom Sigma Tau Standards Group - Active Hydrogen Maser MHM 2010 (PDF)

 

Optically-Pumped Cesium Beam Frequency Standard for GPS-III (PTTI Conference 2001) (PDF)

 

A Modern Militarized Rubidium Frequency Standard (PDF)

 

Rubidium Keeps the Signal Stable (PDF)

 

The Chip-Scale Atomic Clock-Prototype Evaluation (PTTI Conference 2007) (PDF)

 

The Miniature Atomic Clock – Pre-Production Results (PDF)

Why Convert to a SAASM based Global Positioning System (GPS)? (PDF)

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