N5161A/62A/81A/82A/83A MXG Signal Generators User's Guide

Setting Preferences & Enabling OptionsUser PreferencesFront Panel Knob ResolutionMakes the increment value of the current function the active entry.Utility >Instrument Adjustments >The increment value and the step/knob ratio determine how much eachturn of the knob changes the active function value.For example, if the increment value of the active function is 10 dB and thestep/knob ratio is 50 to 1, each turn of the knob changes the activefunction by 0.2 dB (1/50th of 10 dB).page 28.page 29.To change the amount for each turn of the knob, modify the incrementvalue, the step/knob ratio, or both.Executes the Alc Modulator Bias Adjustment. When usingthe ALC in open loop mode, this compensates for open looppower drift due to temperature and humidity.SCPI Commands::CALibration:ALC:MODulator:BIASFor details on each key, use key helpas described on page 42.Setting Time and DateCAUTIONChanging the time or date canadversely affect the signalgenerator’s ability to use time−basedlicenses, even if a time−basedlicense is not installed.Utility >Instrument Adjustments >The signal generator’s firmware tracks thetime and date, and uses the latest timeand date as its time/date reference point.Setting the Time or Date ForwardIf you set the time or date forward, be aware that you are using up any installed time–based licenses,and that you are resetting the signal generator’s time/date reference point. When you set a new timeor date that is later than the signal generator’s current reference point, that date becomes the newreference point. If you then set the date back, you run the risk described in the next section.Original time/date reference pointNew time/date reference pointTimeSetting the Time or Date BackwardWhen you set the time back, the signal generator notes that the time has moved back from thereference point. If you set the time back more a few hours, you disable the signal generator’s abilityto use time–based licenses, even if there is no license installed at the time that you set the time28 Agilent N5161A/62A/81A/82A/83A MXG Signal Generators User’s Guide