Keysight Technologies Inc. FieldFox 44 GHz Microwave Analyzer
The Keysight N9951B is a FieldFox Handheld Microwave Analyzer designed for field use, supporting frequencies up to 44 GHz. It offers a combination of cable and antenna testing (CAT), vector network analysis (VNA), spectrum analysis, and power measurements in a rugged, portable form factor. The N9951B features a large, outdoor-readable display, flexible connectivity options, and a battery life suitable for extended field operations. It is engineered to deliver lab-grade measurements in harsh environments, with MIL-PRF-28800F Class 2 compliance for durability. The analyzer supports a wide range of measurement applications, including S-parameter, distance-to-fault, and interference analysis, making it suitable for installation, maintenance, and troubleshooting of RF and microwave systems.