[time-nuts] Phase measurement of my GPSDO
Matthias Welwarsky
time-nuts at welwarsky.de
Thu Mar 19 23:15:54 UTC 2020
On Donnerstag, 19. März 2020 22:17:22 CET Matthias Welwarsky wrote:
> You cannot expect to see the OCXO for small tau if your reference is the
> GPS. The GPS 1PPS jitter and the quantization errors will dominate the ADEV
> graph for small tau. Once you correct the quantization error (you need to
> parse the UBX-TP5 message for that) your 1s ADEV will be in the 1e-9 range.
That would be UBX-TIM-TP, not UBX-CFG-TP5. My bad.
BR,
Matthias
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