Product Documents & Files

Typesort descending Title Date
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: Periodic inspection of S18XX502-02 ELT: S18XX502-25-12 Rev 04 Rev 04 – Issue Apr. 17/2015 pdf - 2 MB
Friday, April 17, 2015
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Technical Notes and Briefs: GPS Receiver Mobile Mode Operation Starting with Tsync-PCIe firmware Release version 2.0.0, all TSync-PCIe timing boards that contain an internal GPS receiver have the capability of operating in either the factory default “Standard” mode (Also known as the “Stationary” mode) or can instead be programmed to operate in the available “Mobile” mode (also known as “Continuous” mode). pdf - 151 KB
Tuesday, November 15, 2011
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Technical Notes and Briefs: Outdoor GPS Antenna Installation Considerations Many Orolia timing and synchronization products utilize an embedded GNSS (Global Navigation Satellite Systems) receiver as a primary reference. Typical installations utilize an outdoor active GNSS antenna to collect and transmit GNSS satellite radio signals to the receiver via an RF cable. This technical note describes the main considerations for a successful outdoor GNSS antenna installation for a timing application: pdf - 325 KB
Monday, January 21, 2019
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Technical Notes and Briefs: iSource+ RMO Mounting AppNote Rubidium Master Oscillator (RMO) Mounting Recommendations for Optimal Heat Sink pdf - 384 KB
Monday, December 10, 2018
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Technical Notes and Briefs: Path Align-R Field Verification Check The following operational checks of the Path Align-R™ may be made by personnel in the field to confirm proper operation of both Path Align-R™ units, their coax cables and the waveguide adapters (transitions). This confirmation may be made prior to climbing the towers or whenever an operational confidence check needs to be made in the field, without access to test equipment or electronic technicians. pdf - 345 KB
Thursday, May 3, 2012
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Technical Notes and Briefs: iSource+ Low Cost LPFRS Performance Performance data for Low Cost & Profile Frequency Rubidium Standard (LPFRS). pdf - 487 KB
Monday, March 10, 2003
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Technical Notes and Briefs: Periodic inspection of Compact and Integra ELT: S1840501-25-05 Rev 01 – Issue Feb. 11/2013 pdf - 2 MB
Monday, February 11, 2013
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Technical Notes and Briefs: In-Field Coax Connector Test Using the Path Align-R A Path Align-R test set can be used in lieu of expensive cable sweeping equipment. Simply attach the Path Align-R to each end of the connectorized coax and measure the “Cable Loss” at the specific frequency the cable will see during operation. Also, if more than one coax is going to be attached to the tower, you can compare the “Cable Loss” of each coax before they are installed. pdf - 205 KB
Thursday, May 3, 2012
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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: Reminder on ELT battery replacement requirements: SL S18XX50X-25-03 Rev 00 – Issue Feb. 10/2016 pdf - 426 KB
Wednesday, February 10, 2016
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Technical Notes and Briefs: Synchronizing Windows Computers The purpose of this document is to provide detailed information on synchronizing Windows 7, 2008, 2003 and 2000 Stand-Alone PCs and Domain Controllers, as well as Windows 7, 2008, 2003, VISTA, XP, 2000, NT, 98 and 95 clients with a Spectracom NTP time server. pdf - 2 MB
Tuesday, February 21, 2012
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Technical Notes and Briefs: A Guide for Testers of GPS Devices and Systems What you want to know about GPS for testers of GPS devices and systems. pdf - 233 KB
Monday, December 31, 2018
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Technical Notes and Briefs: Spectratime Product Safety Data Sheet (PSDS) PSDS (Product Safety Data Sheet) contains information which should answer any questions relating to handling/shipping of Rubidium (Rb) oscillators and products containing those oscillators. pdf - 43 KB
Wednesday, December 12, 2018
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Technical Notes and Briefs: Aligning Antenna Links Using Frequencies Outside of the Path Align-R Band Range An antenna system whose link frequency is designed outside the frequency band edge of the Path Align-R can still have its path alignment correctly adjusted, as long as the antenna system uses a waveguide which can operate at both the link frequency and a nearby frequency covered by the Path Align-R. pdf - 539 KB
Thursday, May 3, 2012
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Technical Notes and Briefs: The Onboard Galileo Rubidium and Passive Maser - Status & Performance Galileo program is approved by the European Commission and the European Space Agency (ESA). The activities related to GSTBV2 experimental satellite as well as the implementation of the In Orbit Validation phase are in progress. Atomic clocks represent critical equipment for the satellite navigation system and clocks development has been continuously supported by ESA. pdf - 571 KB
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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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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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Technical Notes and Briefs: Environmental Modeling with GPS/GNSS Simulators The value of a GPS simulator is to generate RF signals corresponding to real-world scenarios for comprehensive testing from the bench. In addition to features such as multi-path and interference conditions, Orolia’s GSG series GPS/GNSS simulators can simulate signal obscuration via Environmental Models starting in application software version 6.1. pdf - 904 KB
Monday, December 31, 2018
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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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Technical Notes and Briefs: A Summary of References for the Design of Microwave Links Here is a summary of wireless supporting information useful in the design and management of microwave links. pdf - 225 KB
Sunday, May 3, 2015
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Technical Notes and Briefs: Kannad recommendations following Cobham SB 02/2011 and EASA AD 2011-0103: SL S18XXXXX-25-02 Rev 00 – Issue Jun. 15/2011 pdf - 214 KB
Wednesday, June 15, 2011
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Technical Notes and Briefs: Differences Between NTP and SNTP NTP (Network Time Protocol) and SNTP (Simple Network Time Protocol) are very similar TCP/IP protocols in that they use the same time packet from a Time Server message to compute accurate time. The procedure used by the Time Server to assemble and send out a time stamp is exactly the same whether NTP (i.e. full implementation NTP) is being used, or if SNTP is being used. pdf - 64 KB
Wednesday, February 13, 2019
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Technical Notes and Briefs: Time Server Port Isolation for Secure Networks When leveraging a single master clock / time server across several network segments there are various approaches to port isolation: software isolation, or hardware isolation via multiple processors, unidirectional communication of timing data, or electrical isolation by using fiber optics. pdf - 64 KB
Tuesday, December 23, 2014
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Technical Notes and Briefs: Time Synchronization for Secure Networks using Fiber Government and military networks often utilize the concept of unclassified (black) networks vs classified (red) networks to manage levels of information security. Since a complete “air-gap” around a highly sensitive network is not practical, every data connection is evaluated as a security risk. To synchronize a master source of time on a red network, Spectracom offers a fiber optical IRIG time code link between a SecureSync master-slave pair to offer high accuracy timing to a classified network while satisfying the requirements of SIPRNET, NIPRNET and other ultra-secure network systems. pdf - 254 KB
Thursday, May 8, 2014
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Technical Notes and Briefs: GPS WEEK NUMBER ROLLOVER ISSUES pdf - 108 KB
Friday, May 25, 2018
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Technical Notes and Briefs: Check of hook and loop fasteners for mounting mechanisms: S1800000-25-00 Rev 01 – Issue Nov. 22/2013 pdf - 2 MB
Friday, November 22, 2013
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Technical Notes and Briefs: STANAG / HaveQuick Synchronization STAndard NAto Agreement is a set of minimal specifications aiming at providing interoperability between military equipment deployed by NATO nations. In the area of communications, several STANAGs include specifications related to time and frequency to allow reliable operation of highly protected radio communication networks or links. As a leading provider of Time & Frequency systems for military forces, Spectracom offers high accuracy, high reliability, and flexible solutions to synchronize communication systems in compliance with the relevant STANAGs. This technical note provides a brief description of the main time and frequency related STANAGs as well as their implementation as an option board for the SecureSync Master Clock system. pdf - 420 KB
Thursday, November 17, 2011
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Technical Notes and Briefs: Passive Maser Performance & Lifetime Space Passive Hydrogen Maser- Performance and lifetime data. pdf - 1021 KB
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Technical Notes and Briefs: Kannad ELT Product Safety Information Issue A. 05/10/2016 pdf - 3 MB
Tuesday, May 10, 2016
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Technical Notes and Briefs: Routing of Data Across Multiple Networks This technical note provides a general description of the software routing scheme of a single Spectracom unit with multiple network ports and offers alternative timing hardware deployments if software isolation is insufficient. pdf - 110 KB
Wednesday, February 13, 2019
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Technical Notes and Briefs: RoHS Compliance pdf - 148 KB
Wednesday, December 12, 2018
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Technical Notes and Briefs: Simulate Now - Testing Without a Cold Reset Normally, a cold reset on a GPS/GNSS receiver under test is required to fully clear previous data to allow a new set of parameters to be used in a simulation. However, when a GNSS receiver is embedded in a product or is being tested on an assembly line, cold resetting a receiver is not always practical. Spectracom GPS/GNSS simulators have the ability to "Simulate Now". It will use the current date/time to match the receiver. It will also match its almanac data to allow for fast testing without the need for a cold reset. pdf - 133 KB
Friday, December 21, 2018
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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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Technical Notes and Briefs: eLoran as a SecureSync Timing Reference Product Brief describing eLoran as a SecureSync timing reference. pdf - 784 KB
Friday, July 15, 2016
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Technical Notes and Briefs: Testing SAASM and Carrier Phase Receivers Orolia's GSG-6 GPS/GNSS simulators can be configured for dual frequency L1/L2 simulation. It generates both the C/A and P code signals simultaneously for the GPS and GLONASS navigation systems. Though it does not have an encryption capability to simulate a true classified P(Y) signal, it is still a powerful tool for acceptance testing of classified Selective Availability / Anti-Spoofing Module (SAASM) receivers. This technical note explains how to use the simulator for military SAASM receiver testing and for also testing commercial carrier phase receivers that use the L2 P(Y) signal. pdf - 148 KB
Monday, December 31, 2018
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Technical Notes and Briefs: Epsilon Clock Issue: 2019 GPS Rollover Event In the process of testing the 2019 rollover event, the Orolia Engineering department has determined that this year’s event will potentially affect a limited volume of equipments embedding a Trimble Lassen IQ receiver, despite a Rollover week event compliant notice from the vendor. As a result, the time code may be affected but the GPS will remain locked. The following products have been identified: EC20S, EC22S. Support Bulletin
Wednesday, March 13, 2019
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Visio: 9300 Series NetClock and Related Time Sync Products Visio Shapes Visio shapes for NetClock model 9383, 9389, 9388 and other related time synchronization products. vss - 2 MB
Friday, August 3, 2012
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Visio: Broadcast Network Sync Visio Shapes Vizio shapes for Spectracom synchronization and test products and other network elements typically found in a synchronized digital broadcast network. vss - 182 KB
Friday, August 3, 2012
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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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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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Visio: SecureSync Visio Shapes A couple of Visio shapes for the SecureSync modular time and frequency reference system. vss - 36 KB
Thursday, July 11, 2013
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White Papers: Tech Brief Resiliency in PNT: Cybersecurity This Orolia Tech Brief explores the basic steps for maintaining security using a network-connected time server and looks at different ways to achieve resiliency in PNT. As an example, we will start with our SecureSync® Time Server product line to demonstrate how to maintain security with this network-connected device. pdf - 351 KB
Friday, February 22, 2019
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White Papers: Time Synchronization: Time is at the Heart of the MiFID Regulation

New regulations from MiFID II in Europe to the Consolidated Audit Trail in the US mandate that reportable events must be timestamped to much more accurate levels than ever before and that regulated organizations must have a clear understanding of time for all information they are required to report. Europe’s MiFID II, in particular — which came into force on January 3, 2018 — is far more prescriptive with regards to timestamping, as defined by the European Securities and Markets Authority (ESMA) within RTS 25.

White Paper
Wednesday, January 24, 2018
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White Papers: SmarTiming+ GPS/GNSS Discipining Technology Whitepaper Patented Smart SRO Rubidium SynClock+ with Industry'S First SmarTiming+ Technology Inside pdf - 857 KB
Friday, September 7, 2012
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White Papers: Tech Brief Resiliency in PNT: GPS/GNSS Jamming and Spoofing Reliance on GNSS is now commonplace. However, all GNSS systems share a common vulnerability: their signals are very weak. GNSS satellites operate from Mid-Earth Orbit (MEO), approximately 20,000-25,000 km above the earth, to provide the best coverage and geometry for triangulation. As such, the transmitted signal is extremely weak upon arrival at the surface of the earth – so weak that it is weaker than the surrounding radio noise. Special signal processing techniques recover the GNSS signal from the background noise, but the weak signal strength at the user’s receivers makes GNSS navigation very susceptible to interference. pdf - 641 KB
Tuesday, July 2, 2019
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White Papers: Accurate Time is Essential for Video Surveillance Applications As video surveillance hardware becomes IP-based, systems are able to take advantage of the network to improve efficiency and performance. Time synchronization, in which all the clocks in cameras, recording equipment, and computers have the same time, is simple to implement on the network. It utilizes a standard protocol and a network appliance known as a time server. What’s more, the time server can be legally traceable to a time authority. The result is low-cost investment protection for the video system deployment. pdf - 229 KB
Thursday, May 19, 2011
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White Papers: Cost-effective Synchronization for Digital Broadcast In Europe, Middle East, Africa and Southeast Asia, broadcasters are looking to the DVB-T2 standard to upgrade from analog transmission, their current DVB-T implementation, or as a supplemental network. Similarly, in South America, ISDB-T is being implemented. These and other standards rely more and more on single frequency networks (SFN) to efficiently utilize wireless frequency spectrum. SFNs require synchronization so for each instant of time, every transmission station is broadcasting the same digital data at the same exact frequency. pdf - 739 KB
Thursday, July 26, 2012
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White Papers: Simplifying the Path Alignment of Microwave Communication Systems

Wherever microwave links exist, the path between antennas has always required accurate antenna alignment. This process requires highly trained tower crews to physically align the antennas as well as ground technicians and sophisticated, expensive, and complex test equipment to monitor the results. The process of optimizing the transmission path of microwave communication systems is about to undergo a significant development in process, simplification and cost benefit without compromising performance or accuracy. The process can now be accomplished with the use of the Pendulum (formerly XL Microwave) Path Align-R Microwave Antenna Path Alignment Test Sets. Tower installation crews can now perform the entire alignment process themselves, up the tower, at the antenna, without the need of additional ground technicians, equipment, or indeed, even the waveguides or radios installed.

By Fernando Torrelio, is President and Chief Engineer of Aurora Genesis Communications Inc., a microwave, cellular, PCS, & LMDS engineering, maintenance, installation, and testing company supporting the technical requirements of the wireless communications industry. 

pdf - 132 KB
Thursday, May 3, 2012
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