Timing and Synchronization performance

The Stellar-40 can be used as a source of time and offers multiple synchronization mechanism:

The accuracy of the clock and different synchronization mechanisms offered on the product is as follows:

ParameterErrorComment

Timestamp

< 200 ns
NTP accuracy

10 ms

NTP limitations

PTP accuracy

<1 μs
PPS accuracy~ 5-8 μs
Drift in dead reckoning1 ppm

Drift of the internal clock measured over 1 hour.

The drift is not completely linear with time so will be slightly higher for longer GNSS outages.

For more details on the time and synchronization you can check our knowledge base article.