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

Adding Real–Time Noise to a Signal (Option 403)Adding Real–Time Noise to a Dual ARB WaveformFigure 9-2 Real Time I/Q Baseband AWGN - Power Control Mode SoftkeysMode > Dual ARB > Arb Setup >Real-Time AWGN SetupFor details on each key, use key helpas described on page 42.Figure 9-6 on page 254provides additionaldetails on these settings.see page 252Selecting Total as the powercontrol mode makes the totalpower and C/N independentvariables while making thecarrier power and total noisepower dependent variables. Thedependent variables carrierpower and total noise power areset by the total power, C/N, andthe rest of the Noise settings.The carrier power and totalnoise power change as anynoise parameter is adjusted tokeep the total power and theC/N at their last specifiedvalues.Selecting Carrier as the powercontrol mode makes the carrierpower and C/N independentvariables while making the totalpower and total noise powerdependent variables. Thedependent variables total powerand total noise power are set bythe carrier power, C/N, and therest of the Noise settings. Thetotal power and total noisepower change as any noiseparameter is adjusted to keepthe carrier power and the C/N attheir last specified values.Selecting Total Noise as thepower control mode makes thetotal noise power and C/Nindependent variables whilemaking the total power andcarrier power dependentvariables. The dependentvariables total power and carrierpower are set by the total noisepower, C/N, and the rest of theNoise settings. The total powerand carrier power change asany noise parameter is adjustedto keep the total noise powerand the C/N at their lastspecified values.Agilent N5161A/62A/81A/82A/83A MXG Signal Generators User’s Guide 251