Product Documents & Files

Type Titlesort descending Date
Software: Latest PRISMA Compliance Server Files Download link for latest version of the PRISMA Compliance server ISO image External Link
Tuesday, September 25, 2018
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Software: Latest PRISMA Compliance Transmitter Files Download link for latest versions of the PRISMA Compliance transmitters: Linux / deb format Linux / rpm format Linux / tgz format Windows External Link
Tuesday, September 25, 2018
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White Papers: Leap Second Readiness Tips If you manage a time-sensitive network, you'll want to consider how a leap second event will effect your applications. We offer these tips to help you be prepared. pdf - 224 KB
Monday, December 31, 2018
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Software: Leap Second Simulation Testing Scenario Scenario file (.scen) for testing a GPS device for the December 31, 2016 leap second event for any GSG-5 or -6 Series simulator. See Application Note for more details. scen - 1 KB
Tuesday, August 23, 2016
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Technical Notes and Briefs: Leap Second Solution for Spectratime GXClok-500 pdf - 58 KB
Wednesday, December 12, 2018
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Application Notes: Leap Second Testing Made Easy Spectracom’s GNSS constellation simulators can easily simulate a leap second event such December 31, 2016. A typical test can take as little as 30 to 35 minutes to set up and run. A sample leap second scenario is available for download. This application note provides background on the leap second event and describes leap second testing with the Spectracom simulator. pdf - 93 KB
Tuesday, August 30, 2016
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System Diagrams: Legal EHR Diagram System diagram for legal EHR based on NetClock. pdf - 300 KB
Tuesday, November 4, 2014
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System Diagrams: Legally Traceable Time Diagram System diagram for BIPM and NIST/USNO through GPS. pdf - 3 MB
Thursday, July 26, 2012
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Technical Notes and Briefs: Lifetime of Space Passive Hydrogen Maser Accurate and ultra-stable space qualified atomic clocks represent critical equipment for the precision Global Navigation Satellite Systems (GNSS). The Passive Hydrogen Maser (PHM), with its excellent frequency stability performance, is the master clock for European Navigation satellite payload, and is the most stable clock ever flown for GNSS. pdf - 500 KB
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Compliance Documents: Lloyd's Register - EC (Module D) Certificate of Conformity for Netwave, The Netherlands Orolia B.V.'s Netwave Production Facility in the Netherlands is conformant with EC (Module D), certified by Lloyd's Register Verification Limited. pdf - 599 KB
Saturday, December 22, 2018
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Compliance Documents: Lloyd's Register Quality Assurance Certificate of Registration All Spectracom sites are registered to ISO9001:2008 and are regularly audited and improved to provide you the best possible vendor support. In France, Spectracom is certified by Lloyd's Register. pdf - 74 KB
Saturday, April 23, 2016
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Technical Notes and Briefs: LPFRS Failure Rate Failure rate data for the Spectratime LPFRS timing module. pdf - 167 KB
Tuesday, November 16, 2004
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Technical Notes and Briefs: LPFRS Phase Plot Phase Data for the Spectratime LPFRS Rubidium Source. pdf - 84 KB
Thursday, May 20, 2010
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Technical Notes and Briefs: LPFRS Warm-Up Plot pdf - 535 KB
Thursday, February 7, 2008
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Technical Notes and Briefs: Maintenance Policy for all Kannad ELTs: SL S18XX50X-25-02 Rev 04 – Issue Jan. 24/2018 pdf - 137 KB
Wednesday, January 24, 2018
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White Papers: Making Time Sensitive Networks Resilient Against Threats White Paper Today's time sensitive networks rely on available and accurate positioning, navigation and timing (PNT) signals to provide leaders with the information required to make timely and effective decisions. The proliferation of GNSS-degrading and denying devices across state and non-state actors put this critical information capability in jeopardy. Learn how a combination of alternative PNT signals with traditional GNSS references makes PNT applications resilient against jamming and spoofing. White Paper
Friday, May 11, 2018
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Product Manuals: Manual Addendum, NetClock Model 9183, Software V. 2.3.0 to 2.3.1 Manual Addendum, NetClock Model 9183, Software V. 2.3.0 to 2.3.1 pdf - 630 KB
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Product Manuals: Manual Addendum, NetClock Model 9188, Software V. 2.3.0 to 2.3.1 Manual Addendum, NetClock Model 9188, Software V. 2.3.0 to 2.3.1 pdf - 391 KB
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Product Manuals: Manual Addendum, NetClock Model 9189, Software V. 2.3.0 to 2.3.1 Manual Addendum, NetClock Model 9189, Software V. 2.3.0 to 2.3.1 pdf - 630 KB
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Product Manuals: Manual, PresenTense Manual, PresenTense pdf - 3 MB
Tuesday, January 1, 2008
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Customer Testimonials: Martinsville–Henry County 9-1-1 Communications Center Martinsville-Henry County 911 Center located in Henry County, Virginia, installed a Spectracom GPS Master Clock. pdf - 108 KB
Thursday, July 26, 2012
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Presentations and Articles: Metamodel-Assisted Disciplining Algorithm for Detecting Spoofed GNSS Time Signals

This article was originally presented at the 2014 PTTI conference. It describes various approaches to a disciplining algorithm to detect and mitigate the effect of GNSS spoofing on precision time signals.

pdf - 914 KB
Monday, December 1, 2014
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White Papers: MiFID II Clock Sync Requirements Checklist

In January 2018, MiFID II RTS 25 compliance began, including five requirements for timing synchronization. Use this detailed checklist to make sure that you’re aware of the key considerations, your timing chain is ready and you're fully compliant.

MiFID II Checklist
Friday, January 19, 2018
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Case Studies: Military Aviation Missions Rely on SecureSync: Ultra-Precise Timing & Synchronization for Large Network Infrastructure A military aviation customer needed an ultra-precise, real time network timing and synchronization solution to maintain accurate system synchronization on a global basis. For use in deployable communications systems, this network solution would be used to support mission critical air, land and sea operations on a continuous basis, anywhere in the world. pdf - 196 KB
Tuesday, May 19, 2020
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White Papers: Mitigating an NTP Distributed Denial of Service (DDoS) Attack Network time service is not something many businesses think about as a key component of their critical infrastructures. In fact, it is often overlooked entirely, and in error. As a result, the network architect or engineer often defaults to an easy alternative: using a server or network switch as the source of the network clock and synchronizing these sources to Internet time servers using Network Time Protocol (NTP). This white paper discusses the risks of, and alternative solutions to, "NTP Over the Internet." Mitigating an NTP Distributed Denial of Service (DDoS) Attack
Wednesday, August 29, 2018
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Case Studies: Monmouth University - Secure, Reliable Time Across Campus Operations The University deployed a GPS time server to improve availability to a high quality time source to maintain campus operations. pdf - 113 KB
Thursday, July 26, 2012
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Product Manuals: Mounting and outline dimensions for Skylight Mounting and outline dimensions for Skylight pdf - 180 KB
Thursday, July 11, 2013
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System Diagrams: Multiple GPS Receiver Testing System diagram for multiple GPS receiver testing. pdf - 212 KB
Friday, January 6, 2012
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Datasheets: MultiTap Model 8140MT Datasheet Three square wave outputs per MultiTap. pdf - 125 KB
Friday, June 4, 2010
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Presentations and Articles: Navigating With More Than Just GPS

The resurgence of the automotive industry has come with strong buyer interest in technology to improve safety, convenience and awareness in the automobile. GPS is one such technology that has strong consumer demand. While a GPS receiver is at the heart of any navigation system, applications for GPS extend to a wide range of automotive systems. Virtually anything with a sensor can take advantage of GPS data such as date, time, precise frequency, altitude, heading, velocity partly because it is very accurate and independent of any other system. But GPS is not the only satellite in the sky anymore. More and more Global Navigation Satellite Systems (GNSS) are being developed and deployed. Receivers are available to make use of multiple systems that, when used together, improves accuracy and reliability.

pdf - 287 KB
Thursday, May 17, 2012
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Compliance Documents: NERC CIP-007 Security Report

This technical note documents the compatibility of SecureSync with the North American Electric Reliability Corporation’s (NERC) Critical Infrastructure Protection (CIP) “CIP-007 Standard Cyber Security – Systems Security Management”.

This paper also describes the SecureSync configuration settings required to meet the CIP-007 requirement.

pdf - 805 KB
Thursday, February 28, 2019
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Other: NetClock 9300 Series Discontinuance Notice The Spectracom 9300 series is end-of-life. Limited support is available. The successor product is SecureSync or NetClock 9400 series. The discontinuance notice provides more information. pdf - 263 KB
Monday, January 5, 2015
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Visio: NetClock 9300 Series Rear Panel Visio Shapes Visio shape line drawings of 9383, 9389, 9388 rear panels. vss - 631 KB
Friday, August 3, 2012
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Software: NetClock 9300/9200 Application Software Last update to 3.6.7. Will update from any version at 3.x. External Link
Wednesday, October 1, 2014
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Visio: NetClock 9483 and Accessories Visio Shapes Visio shapes for NetClock 9483 popular configurations - front and rear panels - with typical add-on products. VSS - 570 KB
Monday, October 21, 2013
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Datasheets: NetClock 9483 Time Server Datasheet The current generation of NENA-compliant public safety master clock. pdf - 168 KB
Thursday, May 7, 2020
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Datasheets: NetClock 9489 Time Server Datasheet A high bandwidth NTP server for 10/100 networks. pdf - 152 KB
Wednesday, March 15, 2017
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Datasheets: NetClock GPS Command Center Package GP933-NG911 for Two Networks NetClock GPS Command Center Package GP933-NG911 includes:
  • NetClock Model 9483 with OCXO Oscillator
  • NetClock 9400 Gigabit Ethernet Option Card
  • 6-Digit IP (PoE) Display Clock with PoE Injector Supply
  • GPS Outdoor Antenna Model 8230
  • GPS Antenna Surge Protector Model 8226
  • Outdoor GPS Antenna Cable, 100 ft.
pdf - 174 KB
Monday, February 4, 2019
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Datasheets: NetClock GPS Command Center Package GP934-NG911 for Two Networks NetClock GPS Command Center Package GP934M-94 includes
  • NetClock Model 9483 with OCXO Oscillator
  • NetClock 9400 Gigabit Ethernet Option Card
  • 6-Digit IP (PoE) Display Clock with PoE Injector Supply
  • PresenTense Network Time Management Software CD
  • GPS Outdoor Antenna Model 8230
  • GPS Antenna Surge Protector Model 8226
  • Outdoor GPS Antenna Cable, 100 ft.
  • Weatherproofi ng Cable Kit
  • Grounding Kit
pdf - 205 KB
Monday, February 4, 2019
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Datasheets: NetClock GPS Command Center Package GP951-NG911 for a Single Network NetClock GPS Command Center Package GP951M-94 includes:
  • NetClock Model 9483 with OCXO Oscillator
  • 6-Digit IP (PoE) Display Clock with PoE Injector Supply
  • GPS Outdoor Antenna Model 8230
  • GPS Antenna Surge Protector Model 8226
  • Outdoor GPS Antenna Cable, 100 ft.
pdf - 176 KB
Monday, February 4, 2019
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Datasheets: NetClock GPS Command Center Package GP952-NG911 for a Single Network NetClock GPS Command Center Package GP952M-94 includes:
  • NetClock Model 9483 with OCXO Oscillator
  • (2) 6-Digit IP (PoE) Display Clocks with PoE Injector Supplies
  • PresenTense Network Time Management Software CD
  • GPS Outdoor Antenna Model 8230
  • GPS Antenna Surge Protector Model 8226
  • Outdoor GPS Antenna Cable, 100 ft.
pdf - 164 KB
Monday, February 4, 2019
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Brochures: New ELT Standards Impacting the Aviation Industry Emergency Locator Transmitter (ELT) regulations have evolved significantly over the last few years, impacting both aircraft manufacturers at the design level and airlines in their day-to-day operations. Two main standards requiring the adoption of new technologies, related to both fixed and cabin ELTs have recently been set by regulators such as the EASA, FAA, CAAC, ICAO and others pdf - 368 KB
Monday, November 25, 2019
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Technical Notes and Briefs: NTP over Anycast Spectracom NTP services, implemented in its SecureSync and NetClock 9400 platforms, are compatible with an Anycast routing scheme. The NTP over Anycast feature is a combination of the time server’s ability to associate one of its network ports to an Anycast IP address and to remove itself as an available time source if there is a problem with its reference. pdf - 170 KB
Thursday, September 25, 2014
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Technical Notes and Briefs: NTP Server Capacity Testing Large-scale NTP deployments require consideration for the network’s time synchronization architecture. Network time deployments are usually driven by considerations for reliability, scalability, manageability and security. The capability of modern NTP servers, such as Spectracom SecureSync® and NetClock® time servers, is such that capacity does not impact the design of the synchronization architecture.  pdf - 202 KB
Wednesday, February 13, 2019
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Presentations and Articles: On the Road to Driverless Land-vehicle autonomous navigation requires centimeter-level qualification tools to enable confidence build-up for delivery to open-road traffic insertion. External positioning sensors over a dedicated road section can be replaced with an embedded high-accuracy, highly responsive epoch-by-epoch differential GNSS receiver coupled with an inertial navigation system. The demonstated absolute accuracy and mobility extends the potential test area and minimizes cost for multi-environment validation. PDF - 643 KB
Monday, June 15, 2015
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Product Manuals: Online User Manual, NetClock 9400 Series Time Server Online User Reference Guide, NetClock 9400 Time Server. External Link
Monday, August 28, 2017
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Product Manuals: Online User Manual, PRISMA Compliance Opens the Online User Manual for PRISMA Compliance. External Link
Wednesday, September 26, 2018
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Product Manuals: Online User Manual, Skydel Software-Defined GNSS Simulator The Orolia Skydel User Manual explains how to configure and use Skydel with different hardware setups and operating systems. If you purchased a turnkey solution from Orolia or one of its Value-Added Resellers, you were provided with additional documentation specific to your hardware setup. External Link
Monday, May 21, 2018
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Product Manuals: Online User Manual, TSync Series Time Code Processor This links to the Online version of the User Manual for all TSync Series TIME CODE PROCESSORS. External Link
Monday, May 21, 2018
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Product Manuals: Online User Manual, VelaSync 1232 High Speed Time Server Opens the Online User Manual for the VelaSync High Speed Time Server. External Link
Friday, May 11, 2018
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