Keysight Technologies Inc. Vector network analyzer full 2-port S-parameters
The Keysight N9951D-211 is an option for the FieldFox N9951D Handheld Microwave Analyzer, enabling full 2-port S-parameter measurement capability. With this option installed, the instrument can measure all four S-parameters (S11, S21, S12, S22) for comprehensive network analysis. This feature is essential for characterizing the performance of RF and microwave components such as filters, amplifiers, and antennas in the field or lab. The N9951D-211 option enhances the analyzer's versatility, supporting both reflection and transmission measurements, and is designed for use in demanding environments where portability and accuracy are critical.
