Parent NTP statistics

Local parents

The local time sources are a Garmin GPS 18 LVC and a Conrad DCF 77 receiver.
DCFa data is clipped to ± 49 ms. Without clipping the graphs would contain spikes up to an hour (usually during thunder storms).

Remote parents

Note: PZF means Pseudo Zufalls Folge or pseudo-random sequence.
This uses DCF77 phase demodulation;

• Wikipedia: DCF77
• Wikipedia DE: DCF77 (German)

Which is much more accurate than amplitude demodulation (DCFa);

Daily graphs

There are no NMEA daily offset and jitter graphs.

Weekly graphs