The Keysight N9934B FieldFox is a portable, battery-operated handheld vector network analyzer built for field measurement and troubleshooting of RF network characteristics. Delivering lab-grade performance in outdoor and challenging environments, it combines VNA, spectrum analysis, and cable/antenna testing in a single 3.4 kg instrument. The ruggedized design meets MIL-PRF-28800F Class 2 and MIL-STD-810G standards, enabling reliable operation across diverse conditions while maintaining high measurement accuracy without warmup.
Technical Specifications
• Frequency Range: 9 kHz to 6.5 GHz (useable to 5 kHz)
• Spectrum Analyzer Accuracy: ±0.3 dB without warmup
• Real-Time Bandwidth: 120 MHz gap-free for intermittent signal capture
• Dynamic Range: 104 dB (115 dB for simultaneous four S-parameter measurement with specific options)
• Noise Floor: -134 dBm typical
• Test Port Connectors: Type-N (f)
– Key Features
• Anti-glare 6.5-inch LCD display with LED backlight
• Built-in power meter and variable DC bias source (Option 309)
• Optional preamplifier for enhanced sensitivity and reduced DANL
• Optional tracking generator for scalar stimuli/response measurements
• Optional interference analyzer with spectrogram and waterfall display
• Built-in GPS/GNSS receiver (Option 307) for geolocation and timestamping
• Remote control capability (Option 030) via USB, LAN, or GPIB converters
• Rechargeable Li-ion battery with AC/DC adapter included
• Supplied soft carrying case with backpack and shoulder straps
– Optional Measurement Capabilities
• Time Domain Reflectometry (TDR) (Option 215)
• Vector Network Analyzer options (Options 210, 211, 212)
• Pulse measurements (Option 330)
• Over-the-air testing for 5G NR and LTE
• I/Q data capture for RF signal monitoring
– Compatibility & Integration
Compatible with Keysight BenchVue software. Supports all Keysight USB ECal modules and standard HP/Agilent/Keysight mechanical calibration kits. Connectivity via USB for power sensors, LAN (Ethernet) for remote control, and GPIB via converters. Environmental compliance: IEC/EN 60529.
