EXFO PSO-100 Series Optical Sampling Oscilloscopes - Manual (Page 86)

Setting up and Using the Optical Sampling Oscilloscope
78 PSO-100
Filter-Based Phase Tracking
To set the filter bandwidth:
1. From the main window, select the Utilities menu, then Advanced >
Phase tracking.
2. In Filter based, select Filter bandwidth.
3. Enter the bandwidth value to use, in kHz.
4. Click OK to validate your choice.