Enhanced Reliability and Availability of Services

Public Safety

GNSS is an adequate source of timing if satellite signals are available.

Public Safety

GNSS Vulnerabilities

  • GNSS-signals are vulnerable to several natural and unnatural disruptive forces

  • Loss of GNSS signals in urban canyons, underground subways and parking lots

  • May be unreliable or unavailable due to signal jamming and/or spoofing

  • Atmospheric changes and multipath effects often render GNSS signals unusable

Key Requirements in Emerging Applications

Key Requirements in Emerging Applications

When augmented with PTP, GNSS provides improved synchronization resiliency and avaiability of services

  • Sync traceability to a common source (grandmaster) within a network segment allows for foolproof audits of network services

  • Network latency monitoring
  • PTP provides enhanced holdover (4 to 8 hours or longer) and robust clock performance with TCXO (10x cost savings compared to OCXO)

  • Faster GNSS satellite acquisition after a momentary loss of GNSS (requires special receiver)

Public Safety

Additional Sources of Synchronization

  • A grandmaster that works with GNSS and non-GNSS satellite systems (such as Low Earth Orbit systems) provides additional synchronization resilience.
  • Ability to detect GNSS jamming events and provide critical alerts to service personnel

  • Qulsar’s Qg 2 Multi-Sync Edge Gateway uses GNSS and non-GNSS encrypted signals to provide unprecedented resilience to GNSS vulnerabilities

Public Safety

Qulsar’s products ensure resilience and availability of critical services

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