Signal Generator / Synthesizer 2GHz-20GHz The Agilent (now Keysight) 83751B is a Sweeper and offers outstanding synthesized performance for component-tests. It is ideal for general purpose benchtop, swept test or scalar applications and provides superior accuracy and stability while maintaining the speed of an analog source. Fully synthesized CW, stepped and ramp sweep modes are available in broadband and narrowband operation. Fully phase locked analog sweep for accuracy and speed Flat and accurate output power to characterize the linear response of the test device Offset frequency sweep for mixer test Agilent (now Keysight) 8350 programming mode for backwards compatibility