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FieldFox Handheld Spectrum Analyzers
Carry precision into the field

Meet the Newest FieldFox Models
Using the FieldFox to unlock your potential in mmWave deployments up to 54 GHz and beyond.

Industry's Most Integrated Handheld Analyzer
Keysight's FieldFox family of portable analyzers come equipped to handle routine maintenance, in-depth troubleshooting, and anything in between. Choose the software-enabled Keysight FieldFox configuration that best meets your needs.
- Get coverage up to 54 GHz with precision comparable to benchtop results.
- Make 5G field test a reality with wide analysis bandwidth up to 120 MHz.
- Capture small, interfering signals with wideband, real-time analysis.
- Perform measurements with one of the lightest instruments in the industry — 30% lighter than other handheld analyzers.
- Configure FieldFox as a cable and antenna analyzer (CAT), vector network analyzer (VNA), spectrum analyzer, or an all-in-one combination analyzer.
Never Sacrifice Capability or Portability
Field testing modern communications networks puts new demands on your equipment and requires trade-offs between capabilities and portability. With over 22 software-enabled measurement capabilities in one portable, battery-powered unit, FieldFox is the most capable handheld analyzer in the industry. Stay ahead of changing measurement requirements by upgrading your handheld analyzer in the field with convenient, user-installable license keys.

Find The Model That's Right For You
View All Models
Never Miss A Signal
- Easily capture and demodulate intermittent, beam sweeping technologies used in 5G and radar systems.
- Detect small signals once masked by stronger signals with RTSA.
- Measure signals as narrow as 5.52 µs with 100% Probability of Intercept (POI) and full amplitude accuracy.
- Accelerate communications system development by quickly switching to over-the-air (OTA) measurements.
Extend Your Capabilities With The Right Tools
Get more functionality out of your test instrument today by pairing it with the right accessories to improve productivity and the right PathWave design and test automation software to accelerate your product development.
Protect Your Innovation Investment
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