Keysight Technologies FieldFox Handheld Analyzers

Keysight Technologies FieldFox Handheld Analyzers are rugged enough to meet MIL specs and can operate in a -10°C to +55°C temperature range, ideal for harsh environments. These analyzers are kit-friendly at 7.35lb and feature large buttons that are easy to operate, a field-swappable battery that lasts up to 4 hours, and a non-slip rubber grip that securely fits in the user's hands and won't slide off the hood of a vehicle. The bright, low-reflection display and backlit keys enable easy viewing in direct sunlight or darkness, while the one-button measurements simplify complex setups and ensure accurate results. The completely sealed instrument enclosure ensures these analyzers are suitable in harsh environments, and the construction is specially designed to protect the instrument from damage due to drops, shock, or other external impacts. Keysight Technologies FieldFox Handheld Analyzers offer up to 120MHz bandwidth, a 3kHz to 10GHz frequency range, and meet MIL-PRF-28800F Class 2 requirements. 


  • Built-in power meter
  • Pulse measurements
  • Channel scanner
  • GPS receiver
  • Real-time spectrum analyzer
  • PathWave 89600 VSA software connection
  • Keysight Spectrum Management Software connection
  • Surveyor 4D software connection
  • IQ analyzer/IQ data streaming
  • Noise figure
  • Over-the-Air (OTA) LTE FDD/TDD and 5G
  • Indoor and outdoor mapping
  • EMF measurements (general and 5G)
  • EMI measurements
  • Directional finding - TDOA
  • Large buttons for easy operation
  • Field-swappable battery lasts up to 4 hours
  • Non-slip rubber grip
  • Vertical "portrait" orientation
  • Bright, low-reflection display and backlight keys
  • Intuitively designed user interface
  • One-button measurements
  • Calibration Wizard
  • Rugged enough to meet MIL specs
  • Completely sealed instrument enclosure
  • Water-resistant chassis, keypad, and case


  • Wireless service providers
  • Contractors
  • Public safety operators
  • Broadcasting and cable operators
  • Education
  • General-purpose RF tool
  • Government agencies and military users


  • 3kHz to 10GHz frequency range
  • 100dB to 110dB VNA dynamic range
  • -160dBm SA DANL
  • -105dB phase noise at 10kHz offset
  • Up to 120MHz bandwidth
  • 7.35lb weight
  • -10°C to +55°C temperature range
  • Meets MIL-PRF-28800F Class 2 requirements
  • Type tested and meets MIL-STD-810G, Method 511.5, Procedure I requirements
  • Type tested and meets IEC/EN 60529 requirements


Keysight Technologies FieldFox Handheld Analyzers
Published: 2023-09-01 | Updated: 2023-09-12