:PNOise:PJITter?

:PNOise Commands

Query Syntax

:PNOise:PJITter?

Description

Once the phase noise analysis is set up, you can measure integrated phase jitter from the phase noise log frequency plot.

When the Phase Jitter measurement on the Phase Noise analysis results is enabled (:PNOise:PJITter:STATe), this query returns the Phase Jitter measurement results in NR3 format.

The units of the results is set by the command :PNOise:PJITter:UNITs.

Note that phase jitter measurement results are affected by the phase noise Spur Processing selection (:PNOise:SPUR:PROCessing):

  • NORMalized — When measuring phase jitter with this selection, all points in the phase noise trace are integrated across the specified frequency range as if they all represent noise scaled by dBc/Hz.

  • OMIT — When measuring phase jitter with this selection, points in the phase noise trace are integrated across the specified frequency range after all points identified as spurs are corrected to remove the portion of the measured value that is due to the spur power. So, the phase jitter due to the spurs is not included in the measurement result.

  • POWer — With this selection, the phase jitter due to noise and spurs are computed separately and subsequently combined into the final reported measurement value. The noise component is computed as described for the Omit selection. The spur component is computed by combining the phase jitter from all the identified spurs after they are rescaled to dBc.