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Secure PNT

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Time: The Cornerstone of Secure Position, Navigation and Time (PNT)

Global Navigation Satellite Systems (GNSS) have revolutionized the world. Civilian and military navigation, cellular networks, the Internet, financial services, energy distribution, and air traffic control are just a few examples of the different applications that rely heavily on GNSS. 

Secure Position, Navigation and Time (PNT) solutions use a variety of methods to minimize inherent GNSS vulnerabilities. These methods include detecting threats, using multiple GNSS constellations (GPS, Galileo. GLONASS), offering alternate PNT delivery methods, and backing up PNT sources with degraded accuracy for short operational periods. 

Time is the cornerstone of all secure PNT solutions. We provide innovative timing solutions for all portions of a secure PNT chain, from the PNT core to the PNT end user.

Time: The Cornerstone of Secure Position, Navigation and Time (PNT)
  • Time: Atomic clocks are used at the core of every PNT system to determine precise and accurate time.
  • Position: A PNT end user’s location is determined by the elapsed time microwave signals take to travel between satellites and the PNT end user
  • Navigation: Velocity and acceleration are determined by the change in end user location over a period of time.

The Secure PNT Chain

PNT Core: Time Creation

Our precise and accurate system atomic clocks create the time that is at the core of every PNT system.

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PNT Transmission: Time Delivery

PNT information is transmitted through space using atomic clocks and quartz oscillators as time and frequency references. Local distribution on the ground is achieved using PTP grandmasters and NTP enterprise servers.

Recommended Products:

PNT Resilience: Time Back Up

Low Size, Weight and Power (SWaP) embedded atomic clocks, quartz oscillators and GNSS disciplined oscillators provide local time references during GNSS outages.

Recommended Products:

 

PNT Assurance: Time Defense

BlueSky™ Firewall provides jamming and spoofing detection.  M-Code receivers provide the latest military grade GPS.

Recommended Products:

Featured Products

MHM2020 Active Hydrogen Maser

MHM2020 Active Hydrogen Maser

PNT Core

  • < 8E-14 stability at 1 second tau
  • < 1E-15 noise floor
  • < 3E-16 daily frequency drift
5071A Cesium Primary Frequency Standard

5071B Cesium Primary Frequency Standard

PNT Core, PNT Resilience

  • < 5E-13 accuracy under all conditions
  • < 8E-14 environmental stability
  • No deterministic frequency drift
4310B Cesium Frequency Standard

4310B Cesium Frequency Standard

PNT Core, PNT Resilience 

  • < 1E-12 accuracy under all conditions
  • Compact 2U form factor
  • No deterministic frequency drift
SA65 Chip Scale Atomic Clock

SA65 Chip Scale Atomic Clock

PNT Resilience

  • 9E-10 monthly aging
  • < 120 mW power consumption
  • −40 to 80oC operating temperature
SA55 Miniature Atomic Clock

SA55 Miniature Atomic Clock

PNT Resilience

  • < 1 ms holdover for 48 hours
  • < 5E-11 monthly aging
  • −40 to 70 oC operating temperature
MD-171 GNSS Disciplined Oscillator Module

MD-171 GNSS Disciplined Oscillator Module

PNT Resilience

  • < 1.5 ms holdover for 12 hours
  • Embedded GNSS receiver
  • 41 mm × 51 mm footprint
OX-171 Oven Controlled Crystal Oscillator

OX-171 Oven Controlled Crystal Oscillator

PNT Reslience

  • < 6E-11 daily aging
  • < 8E-10 temperature stability
  • −40 to 85oC operating temperature
EX-421 Evacuated Miniature Crystal Oscillator

EX-421 Evacuated Miniature Crystal Oscillator

PNT Reslience

  • < 250 mW power consumption
  • Compact 13 x 13 mm footprint
  • < 1E-9 daily aging
BlueSky GNSS Firewall 2200

BlueSky GNSS Firewall 2200

PNT Assurance

  • Detects GNSS spoofing and jamming
  • Level 4 DHS resilient PNT conformance
  • Optional embedded miniature atomic clock
TP4100 Precise Timing Grandmaster

TP4100 Precise Timing Grandmaster

PNT Delivery

  • Multi-constellation receiver with GPS L1/L2
  • < 100 ns for 14 days when used with 5071
  • Optional embedded minitaure atomic clock
S650 M-Code GPS Referenced Time and Frequency Standard

S650 M-Code GPS Referenced Time and Frequency Standard

PNT Assurance, PNT Delivery

  • NTP and PTP network timeserver
  • Embedded M-Code GPS receiver
  • DISA approved

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Visit our Frequency and Time Systems support portal to download technical documents and other resources, enter support tickets or open RMA service requests.