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Mobatime DTS 4160.grandmaster User Manual

Gnss security feature
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GNSS SECURITY FEATURE
USER MANUAL
DTS 4160.grandmaster
DTS 4210.timecenter
Important Note:
This Manual is applicable for Firmware version V1.26.x (released March 2024) and newer.
© MOBATIME
BE-801402.01

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Summary of Contents for Mobatime DTS 4160.grandmaster

  • Page 1 GNSS SECURITY FEATURE USER MANUAL DTS 4160.grandmaster DTS 4210.timecenter Important Note: This Manual is applicable for Firmware version V1.26.x (released March 2024) and newer. © MOBATIME BE-801402.01...
  • Page 2 It is prohibited to reproduce, to store in a computer system or to transfer this publication in a way or another, even part of it. The copyright remains with all the rights with BÜRK MOBATIME GmbH, D-78026 VS-Schwenningen and MOSER-BAER AG – CH 3454 Sumiswald / SWITZERLAND.

  • Page 3: Table Of Contents

    Disturbance of GNSS signals - Fundamentals 1.3.2 Jamming 1.3.3 Spoofing General Methodology Mobatime Implementation Supported device types for the GNSS security feature Configuration Activation of GNSS Security system – Step by step Import license GNSS Security system parameters in MOBA-NMS...

  • Page 4: General Information: Introduction

    The license is bound to a specific device and cannot be transferred. The license does not include future upgrades. Future upgrades to the functionality of GIDAS Embedded are possible, but not automatically included. Please contact MOBATIME sales to order a license: export@mobatime.com Requirements 1.2.1...

  • Page 5: Introduction

    Harmonics within the GNSS frequency bands: - Mis-tuned RF equipment Near-far effect and insufficient filtering: - Any other RF components close to the GNSS antenna In this document, the term interference is limited to jamming and spoofing. © MOBATIME 5 / 16 801402.01...

  • Page 6: Jamming

    Almost no knowledge is needed  Due to the low signal level of GNSS a jamming attack can disable reception over a large area.  Jamming is also possible through unintentional installations, see chapter 1.3.1. © MOBATIME 6 / 16 801402.01...

  • Page 7: Spoofing

    ->These kind of attempts are hard to detect and the best solution is to have more than one source to compare, or using a special GNSS security system offered with this feature. © MOBATIME 7 / 16 801402.01...

  • Page 8: General Methodology

    Mobatime Implementation The key components consist of the GNSS receiver module of the MOBATime application and the GIDAS library developed by OHB. Time and state are regularly sent to the application while the raw data from the GNSS receiver module is permanently transmitted to the GIDAS library.

  • Page 9: Supported Device Types For The Gnss Security Feature

    Oscillator type Holdover Product no. G811 DTS 4210.timecenter Rubidium 125600 Compatibility Oscillator Type Model according to Options Product no. type oscillator DTS 4160c. Standard (without E1) 137888 Rubidium G811 grandmaster With option E1 122033 © MOBATIME 9 / 16 801402.01...

  • Page 10: Configuration

    See chapter 2.3. 10. Press "Save" button to store the configuration. Important: The GNSS module will now restart and this could release temporarily warnings or alarms. 11. Check GNSS security status, see chapter 2.4. © MOBATIME 10 / 16 801402.01...

  • Page 11: Import License

    2) Click on the blue "Import" link to select the license file from a folder on your PC: Once the license is successfully activated, the other parameters in the frame "GNSS Security" can be selected and configured. © MOBATIME 11 / 16 801402.01...

  • Page 12: Gnss Security System Parameters In Moba-Nms

    After this time, wait another approx. 30 minutes. Then select the "Overview" Tab and GNSS Source "Details", see next page. There you find the exact position data of the antenna. Enter this values in the position fields below. © MOBATIME 12 / 16 801402.01...
  • Page 13 + Value = N - Value = S Longitude in degrees: Position latitude from antenna position + Value = W - Value = E Hight above ellipsoid in m: Height above ellipsoid from antenna position © MOBATIME 13 / 16 801402.01...

  • Page 14: Check Gnss Security Status

    Check GNSS security status MOBA-NMS: Tab: Time handling – Frame: GNSS Source Click on GNSS Security Suite enables -> Details GNSS security status: © MOBATIME 14 / 16 801402.01...

  • Page 15: A Technical Data

    Technical data Further technical specifications can be requested from MOBATIME. © MOBATIME 15 / 16 801402.01...
  • Page 16 © MOBATIME BE-801402.01...

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