Keysight Technologies Inc. FieldFox N9935B Upgrades
The Keysight N9935BU is a series of hardware and software upgrade options specifically designed for the FieldFox N9935B Handheld Microwave Spectrum Analyzer. These upgrades allow users to enhance the capabilities of their existing N9935B instrument, enabling additional measurement functions such as cable and antenna testing, vector network analysis, power measurements, and more. The N9935BU upgrades are engineered to be field-installable, providing flexibility and scalability for evolving test requirements. Each upgrade is fully compatible with the N9935B platform and is supported by Keysights official technical documentation and warranty.