50 Keysight N9923-90001 User’s GuideNA (Network Analyzer) ModeNA Mode Settings— Enter a time value using the numeric keypad, the arrows, or the rotaryknob.— Press a multiplier key. Learn about multiplier abbreviations in “MultiplierAbbreviations” on page 34.Electrical Delay can also be set using the Mkr->Delay feature. Learn how on“Marker Functions” on page 183.Phase OffsetPhase offset mathematically adjusts the phase measurement by a specifiedamount, up to 360°. Use this feature in the following ways:Improve the d isplay of a phase measurement. This is similar to the way youwould change the reference level in an amplitude measurement. Change thephase response to center or align the response on the screen.Emulate a projected phase shift in your measurement. For example, if youknow that you need to add a cable and that the length of that cable will add acertain phase shift to your measurement, you can use phase offset to add thatamount and simulate the complete device measurement.You can set the phase offset independently for each measurement trace.How to set Phase Offset— Press Scale / Amptd— Then More— Then Phase Offset— Enter a value in degrees using the numeric keypad, the arrows, or therotary knob. Press EnterAveragingAveraging helps to reduce the effects of random noise on a measurement. Youspecify the number of measurements to be averaged. The more measurementsaveraged, the greater the amount of noise reduction. An average counter isshown in the left edge of the screen as Avg where is the number ofmeasurements that are averaged.Averaging can be set before or after calibration. When set before calibration,each calibration standard is measured times and averaged. More time isneeded to perform the calibration, but there will be less noise in the resultingerror terms which means that subsequent measurements will also have lessnoise. In addition, noise is further reduced by continuing to average aftercalibration.How to set Averaging— Press BW 2.
