Keysight Technologies Inc. FieldFox N9938B Upgrades
The Keysight N9938BU is a set of upgrade options for the FieldFox N9938B Handheld Microwave Spectrum Analyzer. These upgrades allow users to enhance the capabilities of their existing N9938B instrument by adding features such as cable and antenna testing, vector network analysis, power meter functionality, and more. The upgrades are designed to be field-installable, enabling users to adapt their analyzer to evolving measurement needs without returning the instrument to the factory. Each upgrade is licensed and activated via a unique code, ensuring seamless integration and immediate access to new features. The N9938BU upgrades help maximize the utility and longevity of the FieldFox N9938B platform.