The Keysight N9915B FieldFox is a handheld microwave analyzer engineered for field-deployed RF and microwave measurements. This ruggedized unit consolidates cable and antenna analysis, vector network analysis, spectrum analysis, and optional signal measurement functions into a single portable instrument, enabling efficient maintenance, commissioning, and fault diagnosis across 30 kHz to 9 GHz.
– Technical Specifications
Frequency Coverage
• Cable and Antenna Analysis (CAT) and Vector Network Analysis (VNA): 30 kHz to 9 GHz
• Spectrum Analysis (SA): 9 kHz to 9 GHz (optional)
VNA Performance
• Dynamic range (all four S-parameters): up to 115 dB or 117 dB
• Output power: typical +1 dBm
Spectrum Analyzer Performance
• Absolute amplitude accuracy: ±0.2 dB or ±0.3 dB (without warmup)
• Trace noise (RMS): 0.0008 dB
• Gap-free, real-time bandwidth: 100 MHz or 120 MHz
Physical
• Dimensions: 292 mm (H) × 188 mm (W) × 82 mm (D)
• Weight: 3.4 kg (7.4 lb)
• Display: 6.5″ anti-glare LCD with LED backlight
• Environmental rating: Ruggedized, meets MIL-specs
• Power: Rechargeable Li-ion battery
Connectors & Interfaces
• Test ports: Type-N (f) or 3.5 mm (m) on N995xB models
• Data storage: SD flash card
• Connectivity: USB and LAN port
• External reference and trigger output available
• Optional GPS/GNSS receiver (Option 307)
– Key Features
• Modular measurement architecture: CAT standard, optional VNA, SA, power meter, vector voltmeter, RTSA, OTA (5G NR/LTE), TDR, DTF, and pulse measurements (Option 330)
• Integrated Vector Signal Analysis software (89600 VSA) compatibility
• Mechanical calibration kit and Keysight USB ECal module support
• USB peak power sensor integration for pulse characterization
– Typical Applications
• Cable and transmission line validation in field installations
• Network analyzer measurements to 9 GHz without bench equipment
• Over-the-air 5G NR and LTE signal verification
• Time domain reflectometry for fault localization
• Real-time spectrum surveillance and occupancy analysis
– Compatibility & Integration
The N9915B accepts standard HP/Agilent/Keysight mechanical calibration kits and all Keysight USB ECal modules. PathWave Vector Signal Analysis (89600 VSA) software extends measurement capability. Keysight USB peak power sensors enable optional pulse analysis.
Status: Discontinued but currently supported. Replacement model: N9915C FieldFox C, 10 GHz.
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