FieldFox Handheld RF and Microwave Analyzers
Carry precision into the field

Meet the Newest FieldFox Models
Already own a handheld analyzer? Trade-in your current FieldFox model or a competitor's model and get credit up to 25% towards a new FieldFox.

The Industry's Most Integrated Handheld Analyzer
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 Keysight FieldFox configuration that best meets your needs.
- Get frequency coverage up to 54 GHz with precision comparable to benchtop results.
- Configure FieldFox as a cable and antenna analyzer (CAT), vector network analyzer (VNA), spectrum analyzer, or an all-in-one combination analyzer.
- 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.
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 is Right for You
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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 Keysight PathWave design and test automation software to accelerate your product development.
Protect Your Innovation Investment
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