They can disrupt operations in a range of environments. Disruption can range from aircraft instrument landing systems to timing and synchronization in mobile networks. Features: The Viavi PNT-6200 Series Assured Reference provides maximum resiliency for critical infrastructure dependent on positioning and timing. The system can supplement or even replace GPS signals based on connectivity to the broadest range of timing sources in the market. These include Low Earth Orbit (LEO), GNSS, commercial satellite, terrestrial, wireline, and atomic clock services. Plugged directly into the antenna port of the timing receiver, Viavi PNT-6200 Series takes timing signal from the most reliable source. Further, it converts the timing signal to a radio frequency (RF) signal as a direct replacement for the GPS input. With Private 5G emerging as a major focus for enterprises, resilient PNT will be critical.