Resource Section Documents

Typesort descending Title Date
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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Application Notes: eCall Application Note This guide is intended to assist the user in performing the tests described in Commission Delegated Regulation (EU) 2017/79 Annex VI, using Spectracom GSG GPS Simulators with a StudioView eCall module. pdf - 2 MB
Friday, December 22, 2017
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Brochures: eCall Brochure Spectracom solution provides GSG simulators with configuration for eCall devices, a testing tool and dedicated scenarios (option “OPT-ECL”). pdf - 7 MB
Wednesday, December 20, 2017
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Compliance Documents: Declaration of Conformity for GSG Series GPS Simulators Declaration of compliance to applicable standards. pdf - 31 KB
Thursday, August 24, 2017
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Datasheets: RTK-DGNSS Virtual Reference Station Option Datasheet Option for testing RTK-DGNSS applications pdf - 289 KB
Thursday, August 14, 2014
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Datasheets: Intelligent Repeater System Case Study An intelligent GPS repeater system offers a cost-effective indoor positioning solution for GPS-denied locations. pdf - 307 KB
Monday, December 31, 2018
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Datasheets: GNSS Vulnerability Test System This product brief describes the GNSS vulnerability test system built on Spectracom's GSG GPS/GNSS simulator platform. pdf - 348 KB
Wednesday, September 26, 2018
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Datasheets: GNSS Testing for Automotive Applications GPS and GNSS testing via RF generation/simulation supports faster and more comprehensive product testing and quality control. pdf - 461 KB
Monday, December 31, 2018
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Datasheets: GPS Record and Playback Option Datasheet Option to record and convert over-the-air GPS in a test scenario with the ability to make modifications. pdf - 312 KB
Wednesday, September 4, 2013
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Datasheets: GSG-5/6 ES Series Advanced Galileo Simulators Datasheet Advanced Galileo simulators supporting all GNSS constellations pdf - 712 KB
Wednesday, April 19, 2017
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Datasheets: GSG Annual Service Plan (ASP) Summary An annual service plan so you get the most out of your GPS simulator. pdf - 180 KB
Tuesday, January 22, 2013
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Datasheets: GSG GNSS Simulator Services Summary A summary of service provided to enhance your GPS testing program. pdf - 201 KB
Wednesday, September 17, 2014
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Datasheets: GSG Series Comparison Chart A comparison of GPS simulator standard features. pdf - 191 KB
Wednesday, September 26, 2018
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Datasheets: GSG StudioView PC Software Datasheet Windows companion software to a Spectracom GPS simulator. pdf - 438 KB
Friday, June 15, 2012
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Datasheets: GSG-5/6 Series Advanced Simulators Datasheet Advanced GPS/GNSS simulators for testing with up to 64 channels and across several frequency bands. pdf - 343 KB
Wednesday, September 26, 2018
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Datasheets: Real-time Scenario Generation Datasheet Option to use an external trajectory/motion simulator to generate corresponding GPS/GNSS RF signals. pdf - 697 KB
Tuesday, June 3, 2014
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Other: eCall Compliance Press Release Spectracom Announces New eCall Compliance Tools for the Automotive Industry. pdf - 533 KB
Thursday, May 25, 2017
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Presentations and Articles: Zone Based Indoor Location Using GNSS Simulators Signals from Global Navigation Satellite Systems (GNSS), such as the Global Positioning System (GPS), are very weak and usually cannot be seen indoors or underground. A common method to overcome the problem of receiving GNSS signals indoors or underground is to use a GPS/GNSS repeater with an antenna located outdoors to receive the GNSS signals and an amplifier/antenna to re-transmit the signal indoors. This paper describes the technologies and methods for creating an intelligent repeater system including time synchronization at the nanosecond, microsecond, and millisecond levels, how each synchronization level affects the overall system and methods for achieving each, power level considerations including power level requirements between zones and how they affect transitions from one zone to another, data transfer and example system configurations. While GPS is primarily demonstrated and tested, the possibility for adding other GNSS constellations such as QZSS, BeiDou, Galileo, and GLONASS are also presented. pdf - 270 KB
Wednesday, November 18, 2015
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Presentations and Articles: Testing GNSS Receivers to Harden Against Spoofing Attacks Spoofing is an attempt to deceive the GNSS/GPS receiver by broadcasting signals that the receiver will use instead of the live sky signals. This article describes a test system for spoofing allows testing the three major factors to consider in a spoofing attack, time synchronization to the signals to be spoofed, power level of the spoofing signal compared to the live sky signals, and accuracy of the position obtained by the spoofing signal to that of the actual position of the device being spoofed. Using a spoofing test system will allow a user to better understand the receiver and harden the system against spoofing attacks. pdf - 673 KB
Tuesday, December 8, 2015
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Presentations and Articles: GPS/GNSS Spoof Testing By Simulation

Hardening GPS/GNSS receivers against spoofing and jamming is crucial as threats are new, real and increasing. Testing with a GPS/GNSS simulator is a very effective tool for designing and evaluating countermeasures for mission-critical applications for positioning, navigation and timing. This presentation describes the application for testing spoofing.

pdf - 2 MB
Thursday, March 10, 2016
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Product Manuals: Online User Reference Guide with SCPI Guide, GSG-5/6 Series GNSS Simulator Online User Manual with SCPI Guide for GSG-5/6 Series GNSS Simulator, Revision 25. External Link
Monday, June 26, 2017
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Product Manuals: User Manual with SCPI Guide, GSG-5/6 Series GNSS Simulator User Manual with SCPI Guide, GSG-5/6 Series GNSS Simulator, rev. 26. pdf - 5 MB
Monday, January 22, 2018
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Software: EULA Terms and Conditions for StudioView Software EULA Terms and Conditions for StudioView Software pdf - 369 KB
Wednesday, July 4, 2012
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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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Software: Example C code to interface with the GSG-5 and -6 Series GNSS Simulators

This example demonstrates opening an NI-VISA connection with a the simulator, uploading a file, and starting a scenario. It also demonstrates sending and receiving commands available through the Real-time Scenario Generator.

zip - 23 KB
Tuesday, October 4, 2016
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Software: GSG-5/6 Update Files and Documentation This link offers a page where you can download the latest update file, update instructions, release notes, for the GSG-5/6 series simulator units as well as the installer and release notes for GSG StudioView companion Windows software.
External Link
Friday, February 17, 2017
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System Diagrams: Ganged GSG Simulators System Diagram Ganged GSG Simulators System Diagram pdf - 89 KB
Monday, June 2, 2014
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System Diagrams: Indoor GPS Location These diagrams describe the issues relating to GPS for indoor positioning and navigation. 
  • Typically you'd consider a pseudo-satellite appriach but which require a specially designed receiver
  • A GPS RF simulator could generate signals that a GPS receiver would interpret as a single (pre-programmed) position (or trajectory) which could be useful for "zone positioning"
  • A GPS repeater would do something similar but the GPS receiver would always interpret at the position of the outdoors GPS antenna
pdf - 259 KB
Wednesday, August 21, 2013
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Technical Notes and Briefs: Programming Interfaces for Automation and Remote Control for GSG Series Simulators One of the benefits of Orolia GSG Series GPS/GNSS simulators is that it does not require any external controller and can operate for 31 days continuously (longer if the unit is connected to the internet). However, there are many situations where remote control from an external program is helpful and required when integrating GPS signals with other test parameters. GSG simulators can be connected to a PC using Ethernet, GPIB or USB. A SCPI command set allows for remote control and integration into test systems. pdf - 137 KB
Monday, December 31, 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: 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: Vehicle Modeling with GPS Simulation Testing The typical application for a GPS simulator assumes an unobstructed view of the satellites. For advanced testing applications, it is possible to model the placement of the GPS antenna relative to the vehicle body. Starting in application software version 6.2 of the GSG series GPS simulators, vehicle modeling allows the simulated satellite signals to be blocked by the vehicle. Applications of this feature include aircraft maneuvers. pdf - 2 MB
Monday, December 31, 2018
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Technical Notes and Briefs: Sensor Simulation with GPS Testing GPS simulators are able to test the integration of a GPS/GNSS receiver into a nav system by generating signals corresponding to virtually any condition including vehicle dynamics. They can also generate signals for other sensors for a comprehensive system test. As the simulator generates satellite data for a given trajectory, it simultaneously calculates position and attitude data in six degrees of freedom in real-time; forward/backward, left/right and up/down as well as the rotations about three perpendicular axes, pitch, yaw, and roll; which can be queried and used in integrated test systems. pdf - 181 KB
Monday, December 31, 2018
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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: 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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White Papers: What is a GPS Simulator? As GPS receivers are built into more mission-critical devices for difficult application environments, and designed with the emerging capabilities of a multitude of GNSS constellations and augmentation systems, developers and manufacturers need better ways to guarantee performance. That’s where a GPS simulator comes in. pdf - 99 KB
Monday, December 31, 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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