Ground Control highlights how Assured Position, Navigation, and Timing (A-PNT) is becoming increasingly important to maritime security as merchant vessels operate amid GNSS disruption, jamming, and spoofing. Read more >>
As Private Maritime Security Companies (PMSCs) take on a broader range of responsibilities in support of secure fleet operations, navigation resilience is moving into the security deliverables category rather than remaining solely a technical issue for bridge teams or onboard specialists. When trustworthy position and timing are lost, routing decisions can become uncertain, situational awareness can degrade, and bridge teams can hesitate, making navigation disruption an operational security issue.
This changing environment is also expanding the operational scope of PMSCs. Alongside physical protection, intelligence, and route advisory services, security providers may increasingly need to consider how vessels detect interference, distinguish spoofing from signal loss, maintain confidence in vessel position, and provide evidence after an incident that safe navigation was maintained. A-PNT provides a broader resilience approach to supporting dependable and verifiable positioning, navigation, and timing when GNSS is degraded, denied, or manipulated. Iridium PNT provides an additional means of maintaining trusted PNT within that broader approach.
RockFLEET Assured for Maritime Navigation Resilience
Ground Control’s RockFLEET Assured, powered by Iridium PNT, is designed specifically for maritime deployment. The marine-grade smart antenna provides cryptographically authenticated positioning and an assured navigation reference for vessels operating where GNSS integrity cannot be guaranteed, while providing an independent source of trusted position data when GPS or other GNSS signals are degraded, denied, or manipulated. By comparing GNSS inputs with Iridium PNT outputs, RockFLEET Assured helps bridge teams and shore-based personnel identify anomalies more quickly and detect possible spoofing or jamming.
Event data can be logged and transmitted ashore, creating a defensible record for incident review, compliance documentation, or insurer scrutiny. Built for repeatable deployment at fleet level, the system is supplied as a single above-deck terminal with mounting options for different vessel types and superstructure layouts. Its IP66-rated enclosure is designed for exposed marine conditions, and no below-deck electronics are required unless bridge view is selected.
RockFLEET Assured also supports configurable position updates and secure two-way messaging between ship and shore through Iridium Messaging Transport (IMT), with reporting intervals tailored to different operational requirements. Integration with Ground Control’s Cloudloop platform enables centralized fleet visibility, while API connectivity supports incorporation into existing monitoring and security systems.
Optional bridge view functionality allows assured positioning data to be displayed alongside standard GNSS outputs, providing crews with a clearer visual reference during interference events and helping reduce hesitation when rapid navigational decisions are required. For PMSCs, these capabilities provide a practical way to embed navigation resilience into a broader security offering, helping make disruption observable, reportable, and manageable.
