The Keysight N9916A FieldFox is a portable microwave analyzer that combines cable and antenna testing with optional vector network analysis, spectrum measurement, and signal generation in a single field-deployable instrument. Operating from 30 kHz to 14 GHz, it delivers accurate RF characterization across installation, maintenance, and troubleshooting workflows without requiring warm-up cycles.
Technical Specifications
Frequency Coverage:
• Cable and Antenna Analyzer / Vector Network Analyzer: 30 kHz to 14 GHz
• Spectrum Analyzer (optional): 100 kHz to 14 GHz
• Independent Signal Source (optional): 30 kHz to 26.5 GHz
Output Power:
• Signal Generator: Up to 1 dBm typical (optional)
• VNA Output Power: -15 dBm preset
Measurement Accuracy:
• Spectrum Analyzer Amplitude: ± 0.5 dB (no warm-up required)
• Trace Noise (RMS): 0.004 dB
DC Bias Supply (optional):
• Voltage Range: 1 to 32 VDC
• Maximum Current: 650 mA
• Maximum Power: 8 W
Real-Time Spectrum Analysis (optional):
• Maximum Real-Time Bandwidth: 10 MHz
– Key Features
• Standard cable and antenna analyzer with Distance to Fault capability
• Time Domain Reflectometry measurements via option
• Four simultaneous S-parameter measurement (VNA option)
• Spectrum analyzer with ±0.5 dB accuracy without warm-up
• Built-in power meter, vector voltmeter, and interference analyzer options
• Variable DC source for active device testing
• Analog demodulation and extended-range transmission analysis capabilities
• Internal and GPS frequency reference options
• LTE FDD over-the-air measurement support
– Typical Applications
• Transmission line and cable characterization
• Antenna impedance and reflection measurements
• Component S-parameter verification
• Spectrum monitoring and interference detection
• Active device bias and signal injection testing
• Field deployment and maintenance of RF infrastructure
– Compatibility & Integration
Frequency reference options include internal oscillator and GPS-disciplined operation for improved measurement confidence in distributed antenna systems and remote field locations.
