The Keysight (formerly Agilent) N9912A FieldFox is a highly integrated, rugged handheld RF analyzer designed for wireless network installation and maintenance. It can be configured with capabilities including cable and antenna analysis, vector network analysis, spectrum analysis, and power measurements in a single weather-resistant package.

Specifications

General

ParameterValue
Interfaces2x USB 2.0 (Host), 1x mini-USB (Device), LAN (10/100Base-T), Micro SD card slot
Display6.5-inch TFT color VGA (640 x 480), transflective with LED backlight

Physical

ParameterValue
Power Supply15 to 19 VDC (via AC/DC adapter)
Operating Temperature-10 to +55 °C
Dimensions (W×H×D)292 x 188 x 72
Weight2.7 kg

Spectrum Analyzer Specifications

ParameterValue
Frequency Range (Option 230)100 kHz to 4 GHz (Spectrum Analyzer)
Frequency Range (Option 231)100 kHz to 6 GHz (Spectrum Analyzer)
Resolution Bandwidth (RBW) Range10 Hz to 2 MHz
Video Bandwidth (VBW) Range1 Hz to 2 MHz
Single Sideband (SSB) Phase Noise-96 dBc/Hz @ 10 kHz offset (1 GHz, typical)
Third-Order Intercept (TOI)+18 dBm (Typical)
Sweep ModesContinuous, Single
Trace TypesClear/write, max hold, min hold, average, view, blank
Detector TypesPeak, Negative Peak, Sample, Normal, Average

Cable and Antenna Analyzer Specifications

ParameterValue
Frequency Range (Option 104)2 MHz to 4 GHz (Cable & Antenna Analyzer)
Frequency Range (Option 106)2 MHz to 6 GHz (Cable & Antenna Analyzer)
System Directivity (Corrected)> 42 dB (QuickCal)
Measurement TypesReturn loss, VSWR, distance-to-fault (DTF), 1-port cable loss
Return Loss Measurement Range0 to 100 dB (0.01 dB resolution)
VSWR Measurement Range1 to 100

Vector Network Analyzer (VNA) Specifications

ParameterValue
Measurement FormatsMagnitude, Phase, Smith Chart (Option 303 dependent)
Calibration TypesQuickCal, CalReady, Mechanical Open-Short-Load (OSL)

Power Measurements

ParameterValue
External USB Power Sensor SupportYes (Keysight U2000 Series compatible)

Inputs, Outputs, and Connectivity

ParameterValue
RF Input Connector TypeType-N (Female)
RF Input Impedance50 Ω
External Reference Input (10 MHz)BNC (Female), 50 Ω
External Trigger InputBNC (Female)

Data Storage and Software

ParameterValue
Supported License OptionsOpt 104 (4 GHz CAT), Opt 106 (6 GHz CAT), Opt 230 (4 GHz SA), Opt 231 (6 GHz SA), Opt 303 (Network Analysis), Opt 235 (Preamplifier), Opt 236 (Interference Analyzer)

Power and Battery

ParameterValue
Battery TypeLithium-ion
Battery Operating Time4 hours (Typical)

Environmental and Regulatory

ParameterValue
Storage Temperature Range-51 to +71 °C
Ingress Protection (IP) RatingDesigned to IP53
Shock and Vibration RatingMIL-PRF-28800F Class 2

Spectrum Analyzer

ParameterValue
Maximum Safe Input Level+27 dBm, 50 VDC (RF IN port)

Spectrum Analyzer Performance

ParameterValue
Displayed Average Noise Level (DANL)≤ -148 dBm/Hz (typical @ 1 GHz, Preamp ON)
Total Absolute Amplitude Accuracy±1.5 dB (standard)

Cable & Antenna Analyzer Performance

ParameterValue
Distance to Fault (DTF) ModesReturn Loss, VSWR
Cable Loss Measurement1-port (Standard)

Capabilities & Options

ParameterValue
Transmission MeasurementAvailable via Option 110 (Scalar insertion loss)
QuickCal (Built-in Calibration)Available via Option 111
PreamplifierAvailable via Option 235
Interference AnalyzerAvailable via Option 236 (Spectrogram, Waterfall)
Vector VoltmeterAvailable via Option 308

Environmental & Physical

ParameterValue
Physical SecurityKensington lock slot

Technology

RF / Microwave

Applications

Wireless Network Installation, Cable and Antenna Maintenance, RF Troubleshooting