Adtran unveils new OSA 3300 Super HP and OSA 3350 Super ePRC+ clocks

June 17, 2024
The new platform can address the growing need for secure synchronization and GPS/GNSS vulnerabilities.

Adtran has introduced two new optical cesium atomic clocks, focused on meeting the demands of applications ranging from scientific research to critical PNT infrastructure.

The new synchronization platforms include the OSA 3300 Super High-Performance (OSA 3300 SHP) and the OSA 3350 Super Enhanced Primary Reference Clock+ (OSA 3350 SePRC+).


Adtran says the OSA 3300 SHP is an ideal tool for metrology institutes and scientific research facilities. It offers stability and accuracy. At the same time, the OSA 3350 SePRC+ is specifically designed to enhance holdover capabilities for PNT services.

These platforms maintain 100 days of 100-nanosecond precision, providing continuous and accurate timing even when GPS/GNSS is unavailable. This makes them crucial components for ensuring the integrity of mission-critical networks and supporting vital infrastructure and defense operations with reliable backup timing.

Adtran claims the OSA 3300 SHP is twice as accurate as the 3300 HP with the same 10-year lifespan – it ensures stability and accuracy, making it an ideal choice for metrology institutes and scientific research facilities. Its advanced feature set enables these institutions to achieve new levels of precision in their timekeeping and calibration processes, directly driving advancements in scientific research and industrial applications.

Meanwhile, the OSA 3350 SePRC+ is specifically designed to enhance holdover capabilities for positioning, navigation, and timing (PNT) services. This high-end optical cesium clock and our Super ePRTC+ combiner can maintain 100 days of 100-nanosecond precision and ensure continuous and accurate timing even in environments where GPS/GNSS are unavailable.

Patrick Berthoud, time and frequency chief scientist at Oscilloquartz, Adtran, said, “The 3300 SHP allows researchers to conduct groundbreaking experiments in fields like quantum mechanics and relativity, where extreme accuracy is paramount.”

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