The Keysight N9926A FieldFox is a battery-operated handheld vector network analyzer combining VNA, cable and antenna analyzer, spectrum analyzer, and power meter functionality in a single 3.0 kg ruggedized unit. Operating from 30 kHz to 14 GHz, it delivers simultaneous four-parameter S-parameter measurements with up to 100 dB dynamic range to 9 GHz and 94 dB to 14 GHz. The instrument supports transmission/reflection base measurements and optional full 2-port characterization, with calibration modes including QuickCal, TRL, OSL, and enhanced response calibration. Trace noise of 0.004 dB rms ensures precision in demanding field environments.
Technical Specifications
Vector Network Analyzer (VNA)
• Frequency Range: 30 kHz to 14 GHz
• Dynamic Range: 100 dB to 9 GHz; 94 dB to 14 GHz
• Output Power: Maximum -4 dBm
• Trace Noise: 0.004 dB rms
• Measurement Configurations: Base (S11, S21); Optional full 2-port (S11, S21, S12, S22)
• Calibration Methods: QuickCal, full 2-port unknown thru, TRL, OSL, response, enhanced response
Cable and Antenna Analyzer (CAT)
• Frequency Range: 30 kHz to 14 GHz
• Measurements: Distance-to-fault, return loss, cable loss
Vector Voltmeter (VVM)
• Frequency Range: 30 kHz to 14 GHz
• Measurements: Phase and electrical length comparison
Power Meter
• Built-in: 100 kHz to 14 GHz
• USB Power Sensor Support: 9 kHz to 24 GHz (sensor dependent); average and pulse power measurements
Power and Battery
• AC/DC Adapter: 100–240 VAC, 50–60 Hz, 1.5 A (100 VAC) / 0.75 A (240 VAC)
• DC Input: Maximum 19 VDC, 4 A
• Rechargeable Li-ion Battery: Approximately 4 hours operation per charge
RF Specifications
• RF Output: 50 V DC, +23 dBm RF maximum
• RF Input: +27 dBm RF, ±50 VDC maximum
• External Trigger/Reference: 5.5 V DC maximum
– Key Features
• Portable design: 3.0 kg with integrated rechargeable battery
• Simultaneous all four S-parameter measurement with single connection
• Optional Time Domain Reflectometer (TDR), mixed-mode S-parameters, variable DC voltage source (+32 V, 0.65 A, 7 W), and internal GPS receiver
• Two RF ports for flexible measurement configurations
– Typical Applications
Field characterization of RF and microwave components, cable diagnostics, antenna analysis, distance-to-fault measurements, maintenance and troubleshooting in challenging environments.
