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How to remove drift in Phasemeter measurement

Written by Paul Cracknell

Updated at December 22nd, 2020

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Moku:Lab uses a digitally implemented phase-locked loop architecture to measure the phase, frequency, and amplitude of a signal.

If you are seeing an unexpected and constant drift in your phase measurement, it can be due to frequency settings at the output or the input side. You can adjust Moku:Lab's Phasemeter with the following settings to remove drift.

Output frequency setting:

First disengage "Lock" on output frequency then tap "Reacquire" to restart the measurement.

Input frequency setting:

Manually set the frequency at the Input side then tap "Reacquire" to restart the measurement.

phasemeter phase drift phase-locked loop pll moku:lab

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