Power amplifier measurements can be particularly challenging when dealing with multistage circuits. IQSTAR allows the control of up to 20 Power supplies with associated IV measurements either from the power supplies or using DC multimeters and oscilloscopes. The flexibility of the DC power supply settings allows custom labeling of each instrument and its associated IV parameters to simplify the biasing procedure of multistage circuits. A resistive network can also be configured to de-embed the measurements and the voltage settings to the DUT reference plane in case of current or voltage drop through serial or parallel resistances. Customized formulas can be defined to calculate power consumption.