The Keysight N9914A FieldFox is a handheld RF combination analyzer that integrates cable and antenna analysis, spectrum analysis, and vector network analysis into a single portable instrument. Designed for field testing and maintenance, it delivers benchtop-class measurement precision in a battery-operated package engineered for demanding environments.
Technical Specifications
Frequency Coverage
• Cable and Antenna Analyzer (CAT): 30 kHz to 6.5 GHz
• Vector Network Analyzer (VNA): 30 kHz to 6.5 GHz (via option)
• Spectrum Analyzer (SA): 100 kHz to 6.5 GHz (via option)
VNA Performance
• Dynamic range: Up to 100 dB
• Maximum output power: −1 dBm
• Simultaneous measurement of all four S-parameters
• Time Domain analysis (S11, S21, S22, S12 magnitude and phase)
Spectrum Analyzer Performance
• Absolute amplitude accuracy: ±0.5 dB
• No warm-up required for accurate power measurements
Physical & Operational
• 6.5″ anti-glare LCD display with LED backlight
• Portrait orientation with oversized buttons for gloved operation
• Weight: 3 kg (6.6 lb)
• Dimensions: 292 mm (H) × 188 mm (W) × 72 mm (D)
• Rechargeable Li-ion battery
• MIL-spec rugged construction
– Key Features
• Single-port and transmission/reflection VNA measurements with Time Domain analysis
• Distance-to-Fault (DTF) and Time Domain Reflectometry (TDR) in simultaneous sweep
• QuickCal simplified calibration (no external kit required)
• InstAlign temperature-compensated power measurement capability
• Independent signal generator and variable DC source
• Optional GPS receiver (external or internal)
• Material permittivity measurement for liquids and semi-solids with optional accessories
• Built-in power meter and Vector Voltmeter for phase and electrical length comparison
– Typical Applications
• Field installation and maintenance of RF networks and transmission lines
• Cable and connector characterization
• Antenna performance validation
• Transmission line fault location
• Dielectric property assessment in material testing scenarios
– Compatibility & Integration
Supports Keysight Materials Measurement Suite and Dielectric Probe Kit for permittivity testing to 6.5 GHz. Compatible with 89600 VSA software for advanced signal evaluation.
