48 Keysight N9923-90001 User’s GuideNA (Network Analyzer) ModeNA Mode Settings— Follow each by entering a value using the numeric keypad, the arrows,or the rotary knob.— After using the arrows or the rotary knob, press Enter. The incrementsetting of the arrows is based on the current span and can NOT be changedin NA Mode.— After using the keypad, select a multiplier key. Learn more in “MultiplierAbbreviations” on page 34.Scale SettingsAdjust the Y-axis scale to see the relevant portions of the data trace. The Y-axisis divided into 10 graticules.This setting can be changed at any time without affecting calibration accuracy.How to set Scale— Press Scale / Amptd.— Then choose from the following method—Autoscale Automatically adjusts the Y-axis to comfortably fit the Minand Max amplitude of the trace on the screen.—Autoscale All Autoscales all of the traces on the screen, useful only formulti-trace configurations.—3.Set Scale, Reference Level, and Reference Position——Scale Manually enter a scale per divi sion to view specific areasof the trace.——Ref Level Manually set the value of the reference line. Enter anegative value by pressing Run/Hold (+/-) either before orafter typing a value.——Ref Position Manually set the position of the reference line.Values must be between 0 (TOP line) and 10 (BOTTOM line)Scale annotation on the FieldFox screen—Reference Line = red arrow—Ref Level = –40 dB—Ref Position = 1—Scale = 2 dB per d ivision
