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

Basic Digital Operation (Option 651/652/654)Scaling a WaveformSetting Waveform Runtime ScalingRuntime scaling scales the waveform data during playback; it does not affect the stored data. You canapply runtime scaling to either a segment or sequence, and set the scaling value either while the ARBis on or off. This type of scaling is well suited for eliminating DAC over–range errors. Runtime scalingadjustments are not cumulative; the scaling value is applied to the original amplitude of thewaveform file. There are two ways to save the runtime scaling setting: by using the save function(page 71) and by saving the setting to the file header (page 151). Saving to the file header saves thevalue with the waveform file, saving with the Save function stores the value as the currentinstrument setting.Use this example to learn how to scale the currently selected waveform.1. Select the waveform to which you want to apply scaling:a. Press Mode > Dual ARB > Select Waveform.b. Highlight the desired waveform (segment or sequence).c. Press Select Waveform.2. Play the selected waveform: Press ARB Off On until On highlights.3. Set the Waveform Runtime Scaling value:a. Press ARB Setup > Waveform Runtime Scaling.b. Enter a scaling value.The signal generator automatically applies the new scaling value to the waveform. There is nosingle value that is optimal for all waveforms. To achieve the maximum dynamic range, usethe largest scaling value that does not result in a DAC over–range error.c. Press Return.Agilent N5161A/62A/81A/82A/83A MXG Signal Generators User’s Guide 191