Keysight N9951B FieldFox Handheld Microwave Analyzer, 44 GHz


A lightweight, durable, software-enabled cable and antenna analyzer, spectrum analyzer, network analyzer, and more
Never Sacrifice Capability or Portability Keysight's FieldFox portable analyzers are equipped to handle your toughest working environments during routine maintenance, in-depth troubleshooting, and anything in between. Choose the software-enabled FieldFox configuration that best meets your needs.
  • Base model includes a cable and antenna tester (CAT)
  • Add software-defined measurement functions according to your needs.
  • Capture elusive signals with 120 MHz gap-free, real-time bandwidth.
  • Measure all four S-parameters simultaneously with 105 dB dynamic range.
  • Make accurate spectrum analyzer measurements (± 0.2 dB) without warmup.
  • Perform over-the-air measurements for 5G NR and LTE.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.4 kg (7.4 lb).
View Technical Overview
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