FieldFox and HSA Handheld Spectrum Analyzers
Choose precision or value spectrum analysis at RF or microwave frequencies

  • Carry Keysight-quality microwave 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 & experts alike
  • Endure the harshest working conditions with analyzers designed for durability – completely sealed, rugged & weather-resistant
  • Save time and ensure consistent results by automating routine tasks for basic spectrum analysis


FieldFox Handheld RF and Microwave Analyzers
Industry's most integrated handheld RF and microwave analyzers

  • NEW Wider analysis bandwidth – up to 100 MHz – makes 5G field test a reality (FieldFox B Models)
  • NEW Capture the smallest interfering signals with wide-band, real-time measurements (RTSA) (FieldFox B Models)
  • Measure with confidence from 4 to 50 GHz - precise measurements agree with benchtop results
  • Withstands your toughest working environments - rugged enough to meet MIL-specs
  • Weighs less than alternative solutions- millimeter-wave models 30% lighter than other handheld analyzers
  • Choose to configure as a handheld cable and antenna analyzer (CAT), vector network analyzer (VNA), spectrum analyzer (SA) or an all-in-one combination analyzer

Model Max. Freq. Max. Analysis BW Instrument Type CAT Analyzer SA VNA
N9913A 4 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9913B 4 GHz 100 MHz Combo Analyzer Yes Optional Optional
N9914A 6.5 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9914B 6.5 GHz 100 MHz Combo Analyzer Yes Optional Optional
N9915A 9 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9915B 9 GHz 100 MHz Combo Analyzer Yes Optional Optional
N9916A 14 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9916B 14 GHz 100 MHz Combo Analyzer Yes Optional Optional
N9917A 18 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9917B 18 GHz 100 MHz Combo Analyzer Yes Optional Optional
N9918A 26.5 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9918B 26.5 GHz 100 MHz Combo Analyzer Yes Optional Optional
N9950A 32 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9951A 44 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9952A 50 GHz 10 MHz Combo Analyzer Yes Optional Optional
N9933B 4 GHz 100 MHz Spectrum Analyzer No Yes No
N9934B 6.5 GHz 100 MHz Spectrum Analyzer No Yes No
N9935A 9 GHz 10 MHz Spectrum Analyzer No Yes No
N9935B 9 GHz 100 MHz Spectrum Analyzer No Yes No
N9936A 14 GHz 10 MHz Spectrum Analyzer No Yes No
N9936B 14 GHz 100 MHz Spectrum Analyzer No Yes No
N9937A 18 GHz 10 MHz Spectrum Analyzer No Yes No
N9937B 18 GHz 100 MHz Spectrum Analyzer No Yes No
N9938A 26.5 GHz 10 MHz Spectrum Analyzer No Yes No
N9938B 26.5 GHz 100 MHz Spectrum Analyzer No Yes No
N9960A 32 GHz 10 MHz Spectrum Analyzer No Yes No
N9961A 44 GHz 100 MHz Spectrum Analyzer No Yes No
N9962A 50 GHz 10 MHz Spectrum Analyzer No Yes No
N9923A-104
N9923A-106
4 GHz
6 GHz
10 MHz VNA Optional No Yes
N9925A 9 GHz 10 MHz VNA Optional No Yes
N9926A 14 GHz 10 MHz VNA Optional No Yes
N9927A 18 GHz 10 MHz VNA Optional No Yes
N9928A 26.5 GHz 10 MHz VNA Optional No Yes
N9912A-104
N9912A-106
4 GHz
6 GHz
10 MHz Combo Analyzer Yes Optional Optional

HSA Handheld Spectrum Analyzers
Field testing made simple

If you are making measurements in the field, the Keysight N934X Handheld Spectrum Analyzer (HSA) family makes your job easier. They've got the features you need for operating in tough field environments, and their measurement performance gives you confidence the job's been done right. The HSAs let you automate routine tasks to save time and ensure consistent results.

  • Rugged design, without fans or vents, for tough field environments.
  • Clear screen viewing - day and night.
  • Optional applications for interference analysis and spectrum monitoring.
  • Flexible remote control via USB/LAN. Send SCPI commands through telnet/socket connection.

Model Max. Freq. DANL TOI CAT Analyzer
N9340B 3 GHz -158 dBm 10 dBm No
N9342C 7 GHz -164 dBm 10 dBm Optional
N9343C 13.6 GHz -155 dBm 11 dBm No
N9344C 20 GHz -155 dBm 11 dBm No