The Agilent 35653C provides the excitation signals needed for a wide variety of stimulus/response measurements. It provides random, burst random, fixed sine, and step function outputs. The various excitation signals are band-limited and band-translated to concentrate the source energy in the analysis band.
The 35653C has an independent capability of generating and sending a short pseudo-random sequence to the analog calibration bus for multiple frequency (flatness) verifications.