5071A Cesium Primary Time and Frequency Standard
A Leading Time Solution for Commercial, Defense and Critical Infrastructure Applications
The 5071A is the most accurate commercial atomic clock available. It has an accuracy of less than 5E−13 under all environmental conditions and no deterministic frequency drift. The capabilities and reliability of the 5071A make it the single largest contributor of cesium clocks—more than half of all contributing clocks—to Coordinated Universal Time (UTC). The 5071A is the world’s leading timing solution for strategic defense assets and critical civilian and government infrastructure, with the ability to deliver submicrosecond holdover for months at a time during Global Navigation Satellite System (GNSS) denial.
Key Features
- < 5E−13 accuracy high-performance models
- < 1E−12 accuracy standard-performance models
- Accuracy levels achieved within 30 minutes of startup
- < 8.5E−13 at 100s high-performance models
- < 2.7E−12 at 100s standard-performance models
- < 1E−14 flicker floor high-performance models
- < 5E−14 flicker floor standard-performance models
- No deterministic frequency drift
- 100 kHz, 1, 5 and 10 MHz RF sine wave outputs
- Three 1 PPS outputs
- Two 1 PPS inputs to steer to external GNSS receiver or other 1 PPS source
- AC and DC operating voltages
- Internal battery back-up for short-term power interruptions
Design Help
- Client Support Team
- Sales Representatives
- Support Portal
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Visit our Frequency and Time Systems support portal to download technical documents and other resources, enter support tickets or open RMA service requests.
