SecureSync SAASM GPS Clock

SecureSync SAASM GPS Clock

DISA Approved - Approved Products List for DoD NetworksSecureSync® SAASM combines Spectracom’s precision time and frequency technology with secure Selective Availability Anti-Spoofing Module (SAASM) based GPS receiver.

This system was conceived specifically to satisfy the Joint Chiefs of Staff mandate that all newly-fielded Department of Defense GPS systems be SAASM-compliant (CJCSI 6130.01C: Enclosure E). SecureSync SAASM offers a choice between two SAASM receiver options: a 24-channel Miniature Ruggedized Unit (MRU) and a 12-channel Ground-Based GPS Receiver Application Module (GB-GRAM).

  • SAASM available in GB-GRAM and MRU receivers
  • Synchronizes to military signal P(Y) code SAASM GPS receiver and civil signal C/A-Code
  • Hot start capable via DAGR/PLGR connectors
  • A wide variety of input/output signals supported
    • IRIG timecode generation
    • Precision, low-phase, frequency
    • Precise timing
    • Timecode generation: IRIG, STANAG, HaveQuick
  • STL Option - add alternative signals to GPS or GNSS input references to improve resilience, or use STL alone for indoor applications.
  • Network-centric design
  • Secure system with the latest network management tools
  • Robust web-based user interface
  • High-performance NTP server; PTP grandmaster option
  • Modular (configure-to-order) ruggedized shock and vibration tested chassis
  • Exceptional operating temperature range of -20°C to +65°C


Mission critical military applications will benefit from SecureSync SAASM’s extreme reliability, security, and flexibility. An important advantage of SecureSync SAASM is its ruggedized shock and vibration tested chassis, designed to meet MIL-STD-810F for environmental performance.

The base unit provides an extremely accurate 1PPS timing signal aligned to a 10 MHz frequency signal without any 10 MHz phase discontinuity. An assortment of internal oscillator options is available to fulfill a broad range of requirements for holdover and phase noise.



More Info
Orolia delivers a modular, scalable system with flexible design to integrate internal and external IMUs, internal clock and other
PNT sources for Mounted Resilient PNT. The system is GPS SAASM ready with a defined path for M-Code and Galileo PRS.
The flexibility of configuring inputs and outputs offers a unique and affordable advantage to meeting a broad range of PNT

pdf - 3 MB
Friday, February 8, 2019


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Orolia GPS timing accessories include GPS antennas, surge protectors, grounding kits, amplfiers, splitters, software, time displays, and support package options.
pdf - 208 KB
Thursday, February 14, 2019
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Optional hardware modules for the SecureSync platform.
pdf - 283 KB
Wednesday, September 26, 2018
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BroadShield is an option that integrates over 75 GPS jamming and spoofing detection algorithms into the SecureSync Precision Time and Frequency Platform.
pdf - 424 KB
Wednesday, September 26, 2018
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A SecureSync configuration with a SAASM GPS receiver for the needs of the USA department of defense and related programs.
pdf - 372 KB
Wednesday, September 26, 2018
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An overview of the web-based graphical user interface for Orolia's time server/master clock platform.
pdf - 168 KB
Thursday, February 14, 2019

Success Stories

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Orolia was contacted by a global defense infrastructure client to evaluate the obsolescence of its fixed site timing infrastructure, and the impact on overall system performance.  This case study demonstrates how Orolia’s SecureSync® time server solutions can upgrade and enhance legacy defense timing infrastructure while preserving critical system functionality, at minimal cost. 
pdf - 296 KB
Monday, April 29, 2019

Technical Notes and Briefs

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This document is designed to help you configure Email Alerts to generate automatic emails when certain events occur on an Orolia time server with 5.1.x software.
pdf - 759 KB
Tuesday, February 26, 2019
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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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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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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
More Info
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
More Info
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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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

White Papers

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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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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
More Info
Military communications and intelligence-collection functions, traditionally associated with fixed sites and large platforms, are being pushed to tactical vehicles and sophisticated Unmanned Autonomous Vehicles (UAVs). This results in more C5ISR systems being installed on mobile platforms. Whether in the air, on land, or at sea, these vehicles will impart shocks and vibrations to their electronics, sometimes severely. In high vibration environments, the system designer must account for induced phase noise which can drastically affect overall performance. This white paper discusses the challenges of keeping low noise signals pure in any environment.
pdf - 903 KB
Wednesday, August 22, 2018

All SAASM Documents & Files

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