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

Basic Digital Operation (Option 651/652/654)Saving a Waveform’s Settings & ParametersFigure 8-5Example File HeaderMode > Dual ARB > More > Header UtilitiesThe name of the waveform file.The description can be up to32–characters.Opens a menu for manuallydefining the carrier RMS valueto use for calculating theAWGN: Carrier RMS valuein the Header Field.Resets the savedheader settingsentries to defaultsettingsDefault header settingsCurrent signal generator settingsTo calculate the RMS waveform voltage:Press CalculateThen refer to Header Field information.Note: For greater accuracy, if the waveform has long rise/fall times, a DCoffset, or noise* already added to the waveform (for a bursted signal), itis recommended that the Edit RMS and Edit AWGN RMS Overridesoftkeys are used for the best measurement accuracy.*Option 403 Real–time AWGN does not affect the Header Field RMSvalue. But, noise added to the waveform prior to downloading andplaying in the signal generator does affect the Header Field RMS value.3. Save the information in the Current Inst. Settings column to the file header:Press Save Setup To Header.Both the Saved Header Settings column and the Current Inst. Settings column now displaythe same values; the Saved Header Settings column lists the settings saved in the file header.4. Edit and Update Settingsa. Return to the ARB Setup menu:Press Return > More > ARB Setup.From this menu you can access some of the signal generator settings that are saved to the fileheader. Figure 8- 1 on page 141 shows the ARB Setup softkeys used in the following steps.b. Set the ARB sample clock to 5 MHz:Press ARB Sample Clock > 5 > MHz.c. Set waveform runtime scaling to 60%:Press Waveform Runtime Scaling > 60 > %.d. Return to the Header Utilities menu:Press Return > More > Header Utilities.As shown in the following figure, the Current Inst. Settings column now reflects thechanges to the current signal generator setup, but the saved header values have not changed.152 Agilent N5161A/62A/81A/82A/83A MXG Signal Generators User’s Guide