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FieldFox Handheld RF and Microwave Analyzer

Carry precision with you

Measuring up and earning a spot in your kit is the driving idea behind Keysight’s FieldFox analyzers. Carry the precision of our microwave models: they deliver Keysight-quality measurements wherever you need to go. Boost your readiness with an RF unit: every operating mode is flexible enough to meet the needs of novices and experts alike. And count on the durability of handheld analyzers designed to withstand your toughest working conditions. Add FieldFox to your kit—and see how it measures up.

Available with a maximum frequency range of 4 GHz up to 26.5 GHz, FieldFox portable analyzers are configurable as cable and antenna analyzers (CAT), vector network analyzers, spectrum analyzers and all-in-one combination analyzers.

FieldFox Comparison Summary

Compare All FieldFox Analyzers (16)

Find a Network Analyzer

  • N9928A FieldFox Handheld Microwave Vector Network Analyzer, 26.5 GHz N9928A FieldFox Handheld Microwave Vector Network Analyzer, 26.5 GHz (1) 

    N9928A FieldFox Handheld Microwave Vector Network Analyzer, 26.5 GHz

    • 26.5 GHz
    • Base is a transmission/reflection VNA (S11, S21)
    • Optional full 2-port VNA, cable and antenna analyzer, built-in power meter, vector voltmeter
    • MIL-PRF-28800F Class 2 compliant
    • 3.0 kg or 6.6 lbs

  • N9938A FieldFox Handheld Microwave Spectrum Analyzer, 26.5 GHz N9938A FieldFox Handheld Microwave Spectrum Analyzer, 26.5 GHz (1) 

    N9938A FieldFox Handheld Microwave Spectrum Analyzer, 26.5 GHz

    • 26.5 GHz
    • Base is a spectrum analyzer
    • Optional full band tracking generator and preamplifier, interference analyzer and built-in power meter
    • Compliant with MIL-PRF-28800F Class 2
    • 3.0 kg or 6.6 lbs

  • N9918A FieldFox Handheld Microwave Analyzer, 26.5 GHz N9918A FieldFox Handheld Microwave Analyzer, 26.5 GHz (1) 

    N9918A FieldFox Handheld Microwave Analyzer, 26.5 GHz

    • 26.5 GHz
    • Base is a cable and antenna analyzer
    • Optional spectrum analyzer, vector network analyzer, built-in power meter, vector voltmeter
    • Compliant with MIL-PRF-28800F Class 2
    • 3.0 kg or 6.6 lbs

  • N9925A FieldFox Handheld Microwave Vector Network Analyzer, 9 GHz N9925A FieldFox Handheld Microwave Vector Network Analyzer, 9 GHz (1) 

    N9925A FieldFox Handheld Microwave Vector Network Analyzer, 9 GHz

    • 9 GHz
    • Base is a transmission/reflection VNA (S11, S21)
    • Optional full 2-port VNA, cable and antenna analyzer, built-in power meter, vector voltmeter
    • MIL-PRF-28800F Class 2 compliant
    • 3.0 kg or 6.6 lbs

  • N9935A FieldFox Handheld Microwave Spectrum Analyzer, 9 GHz N9935A FieldFox Handheld Microwave Spectrum Analyzer, 9 GHz (1) 

    N9935A FieldFox Handheld Microwave Spectrum Analyzer, 9 GHz

    • 9 GHz
    • Base is a spectrum analyzer
    • Optional full band tracking generator and preamplifier, interference analyzer and built-in power meter
    • Compliant with MIL-PRF-28800F Class 2
    • 3.0 kg or 6.6 lbs

  • N9914A FieldFox Handheld RF Analyzer, 6.5 GHz N9914A FieldFox Handheld RF Analyzer, 6.5 GHz (1) 

    N9914A FieldFox Handheld RF Analyzer, 6.5 GHz

    • 6.5 GHz
    • Base is a cable and antenna analyzer
    • Optional spectrum analyzer, vector network analyzer, built-in power meter, vector voltmeter
    • Compliant with MIL-PRF-28800F Class 2
    • 3.0 kg or 6.6 lbs

  • N9912A FieldFox Handheld RF Analyzer, 4 GHz and 6 GHz N9912A FieldFox Handheld RF Analyzer, 4 GHz and 6 GHz (1) 

    N9912A FieldFox Handheld RF Analyzer, 4 GHz and 6 GHz

    • 4, 6 GHz
    • Base is a cable and antenna analyzer
    • Optional spectrum analyzer, partial network analyzer, built-in power meter, partial vector voltmeter
    • Compliant with MIL-PRF 28800F Class 2
    • 2.8 kg or 6.2 lbs
       

  • N9923A FieldFox Handheld RF Vector Network Analyzer, 4 GHz and 6 GHz N9923A FieldFox Handheld RF Vector Network Analyzer, 4 GHz and 6 GHz (1) 

    N9923A FieldFox Handheld RF Vector Network Analyzer, 4 GHz and 6 GHz

    • 2 MHz to 4/6 GHz
    • Vector network analyzer, cable and antenna analyzer, vector voltmeter
    • Compliant with MIL-PRF-28800F Class 2
    • 2.8 kg or 6.2 lbs.
       

  • N9926A FieldFox Handheld Microwave Vector Network Analyzer, 14 GHz N9926A FieldFox Handheld Microwave Vector Network Analyzer, 14 GHz (1) 

    N9926A FieldFox Handheld Microwave Vector Network Analyzer, 14 GHz

    • 14 GHz
    • Base is a transmission/reflection VNA (S11, S21)
    • Optional full 2-port VNA, cable and antenna analyzer, built-in power meter, vector voltmeter
    • MIL-PRF-28800F Class 2 compliant
    • 3.0 kg or 6.6 lbs

  • N9936A FieldFox Handheld Microwave Spectrum Analyzer, 14 GHz N9936A FieldFox Handheld Microwave Spectrum Analyzer, 14 GHz (1) 

    N9936A FieldFox Handheld Microwave Spectrum Analyzer, 14 GHz

    • 14 GHz
    • Base is a spectrum analyzer
    • Optional full band tracking generator and preamplifier, interference analyzer and built-in power meter
    • Compliant with MIL-PRF-28800F Class 2
    • 3.0 kg or 6.6 lbs

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