Agilent 33120A User's Guide

Chapter 4 Remote Interface ReferenceFrequency-Shift Keying (FSK) CommandsFrequency-Shift Keying (FSK) CommandsSee also “FSK Modulation,” starting on page 90 in chapter 3.FSK OverviewThe following is an overview of the steps required to generate anFSK waveform. The commands used for FSK are listed on the next page.1 Set up the carrier waveform.Use the APPLy command or the equivalent FUNC:SHAP, FREQ, VOLT,and VOLT:OFFS commands to select the function, frequency, amplitude,and offset of the carrier waveform. You can select a sine, square,triangle, ramp, or arbitrary waveform for the carrier.2 Select the FSK “hop” frequency.Use the FSK:FREQ command to set the “hop” frequency.43 Set the FSK rate.Use the FSK:INT:RATE command to set rate at which the outputfrequency “shifts” between the carrier frequency and the hop frequency(internal FSK source only).4 Select the FSK source.Select an internal or external FSK source using the FSK:SOUR command.5 Enable FSK modulation.After you have set up the other FSK parameters, use the FSK:STAT ONcommand to enable FSK modulation.167