The Agilent/Keysight N9935A is a handheld microwave spectrum analyzer from the FieldFox series engineered for field-deployable RF signal analysis and wireless system characterization. Operating from 5 kHz to 9 GHz, it delivers 10 MHz gap-free real-time bandwidth with 100% probability of intercept for signals as short as 12 µs. The instrument combines amplitude accuracy of ±0.5 dB without warmup, a display average noise level of −155 dBm @ 1 GHz, and third-order intercept of +15 dBm @ 1 GHz. Its rugged construction meets MIL-PRF-28800F Class 2 and IEC/EN 60529 IP53 specifications, with sealed design eliminating vents and fans for extended reliability in harsh field environments.
Technical Specifications
• Frequency Range: 5 kHz to 9 GHz
• Real-Time Bandwidth: 10 MHz gap-free; minimum signal detection of 12 µs with full amplitude accuracy; minimum detectable signal down to 22 ns with 10 MHz bandwidth
• Amplitude Accuracy: ±0.5 dB without warmup via InstAlign automatic calibration
• DANL (@ 1 GHz): −155 dBm
• TOI (@ 1 GHz): +15 dBm
• Phase Noise (@ 1 GHz): −113 dBc/Hz at 1 MHz offset; −111 dBc/Hz at 10 kHz offset; −110 dBc/Hz at 30 kHz offset
• Output Power: Up to 1 dBm
• Attenuator: 0 to 30 dB standard range, 5 dB steps
• Weight: 3.0 kg; Dimensions: 292 mm H × 188 mm W × 72 mm D
• Operating Temperature: −10 to +55 °C
• Connectors: Type-N (f), dual ports
• Power: Rechargeable Li-ion battery with AC/DC adapter
– Key Features
• Spectrum analysis, interference analysis, and time gating
• VSWR and reflection measurements with built-in power meter
• Extended Range Transmission Analysis (ERTA) and noise figure measurements
• Over-the-air measurements for 5G TF and LTE
• I/Q data capture for RF signal monitoring with 3D spectrum density visualization
• Recording and playback capability for offline analysis
• GPS/GNSS geolocation and timestamping
• SCPI code compatibility; LAN and USB connectivity
• Optional full-band tracking generator and preamplifier
• Soft carrying case with backpack and shoulder strap included
– Typical Applications
Wireless communication system verification, broadcast signal analysis, field troubleshooting, RF interference identification, and mobile network characterization.
– Compatibility & Integration
Supports 89600 VSA Software and compatible with A-Series FieldFox analyzer documentation.
