Keysight Technologies Inc. FieldFox N9935A Upgrades
The Keysight N9935AU is a series of hardware and software upgrades specifically designed for the Keysight FieldFox N9935A handheld microwave spectrum analyzer. These upgrades enable users to enhance the functionality of their existing N9935A units by adding measurement capabilities such as vector network analysis, cable and antenna testing, power meter support, and other advanced features. Each N9935AU upgrade is tailored to unlock specific options or performance enhancements, allowing users to customize their FieldFox analyzer to meet evolving test requirements in the field. All upgrades are officially supported and validated by Keysight Technologies.