According to the company's release, published by The Quantum Insider, the test took place during the Maritime Big Play Pacific exercise, with the US Navy, the Marine Corps and AUKUS partners taking part. The clock ran for more than two weeks at sea through large temperature swings and sustained vibration.
Tiqker is a compact, rugged clock that uses optical transitions of atoms as a stable timing reference, and can keep precise time when GPS signals are unavailable, jammed or spoofed. That lets it synchronize communications, radar and other onboard systems. The test builds on earlier trials, in 2025 aboard the UK Royal Navy's uncrewed submarine testbed XV Excalibur and in 2024 on UK flight trials. The company did not publish accuracy figures from the test.