Keysight Technologies Inc. FieldFox N9937A Upgrades
The Keysight N9937AU is a series of hardware and software upgrades for the FieldFox N9937A Handheld Microwave Spectrum Analyzer. These upgrades allow users to enhance the capabilities of their existing N9937A instrument, enabling additional measurement functions such as vector network analysis, cable and antenna testing, power measurements, and more. Each N9937AU upgrade is designed to be field-installable, providing flexibility for users to expand their analyzers functionality as their testing needs evolve. The upgrades are officially supported by Keysight and maintain the rugged, portable design of the FieldFox platform.