VIAVI Integrates Secure µPNT STL-1000 into RockFLEET Assured for GNSS-Denied Navigation
VIAVI Solutions has partnered with Ground Control to integrate its Secure µPNT STL-1000 into the RockFLEET Assured maritime vessel tracking solution, delivering precise timing with holdover capability in GNSS-denied environments. The compact software-defined receiver leverages altGNSS LEO services for authenticated navigation and resilient PNT in disrupted operational scenarios.
1. Partnership Overview
VIAVI Solutions has partnered with Ground Control to integrate its Secure µPNT STL-1000 into the RockFLEET Assured solution for maritime vessel tracking and navigation. Announced on April 2, 2026, the deal positions VIAVI within the assured positioning, navigation and timing (A-PNT) market for naval and critical infrastructure applications.
2. Technology Features
The Secure µPNT STL-1000 is a compact software-defined receiver delivering sub-microsecond timing with holdover capability in Denied, Degraded and Disrupted Space Operational Environments (D3SOE). It leverages VIAVI SecureTime altGNSS LEO services for signal authentication, jamming resistance and uninterrupted PNT functions in GNSS-denied scenarios.
3. Strategic Impact
By embedding STL-1000 in RockFLEET Assured, VIAVI expands its defense and maritime product portfolio and addresses rising concerns over GPS jamming and spoofing. The integration targets commercial shipping and military vessels, enhancing VIAVI’s position in the resilient PNT market and offering new revenue streams.