Keysight (Agilent) N9938A

| Attribute | Value |
|---|---|
| Frequency Range | 100 kHz to 26.5 GHz |
| Dynamic Range | +20 dBm to -163 dBm (DANL) |
| Display Average Noise Level (DANL) | -163 dBm (with preamp on, 1 Hz RBW) |
| Phase Noise | -104 dBc/Hz at 10 kHz offset (1 GHz carrier) |
| Amplitude Accuracy | ±0.5 dB |
| Resolution Bandwidth (RBW) | 1 Hz to 3 MHz |
| RF Input Connector | Type-N (female), 50 Ohm |
| Battery Life | Up to 4 hours (internal lithium-ion battery) |
| Display | 10.4-inch daylight-readable color LCD touchscreen (1024 x 768) |
| Operating Temperature Range | -10°C to +55°C |
Keysight (Agilent) N9938A Options:
- N9938A - 209 - Extended Range Transmission Analysis (ERTA)
- N9938A - 010 - VNA Time Domain
- N9938A - 030 - Remote Control Capability (iOS)
- N9938A - 208 - USB Power Sensor Measurements versus Frequency
- N9938A - 211 - 2-Port Transmission Measurement
- N9938A - 212 - Mixed-Mode S-Parameters
- N9938A - 215 - TDR Cable Measurements
- N9938A - 233 - Spectrum Analyzer
- N9938A - 235 - Preamplifier
- N9938A - 236 - Interference Analyzer and Spectrogram
- N9938A - 238 - Spectrum Analyzer Time Gating
- N9938A - 302 - External USB Power Sensor Support
- N9938A - 305 - Distance-to-Fault
- N9938A - 307 - Built-In GPS Receiver
- N9938A - 308 - Vector Voltmeter (VVM)
- N9938A - 309 - DC Bias Variable-Voltage Source
- N9938A - 310 - Built-in Power Meter
- N9938A - 312 - Channel Scanner
- N9938A - 320 - Reflection Measurements (RL, VSWR)
- N9938A - 330 - Pulse Measurements
- N9938A - 350 - Real-Time Spectrum Analyzer (RTSA)
- N9938A - 351 - I/Q Analyzer (IQA)
- N9938A - 355 - AM/FM Analog Demodulation, Tune and Listen
- N9938A - 356 - Noise Figure (NF)
- N9938A - 370 - Over-the-Air (OTA) LTE FDD
- N9938A - 377 - Over-the-Air (OTA) 5GTF
| Model | N9938A |
|---|
The Keysight (Agilent) N9938A FieldFox is a rugged, lightweight spectrum analyzer designed for high-precision RF field applications. With ±0.5 dB accuracy, 10 MHz gap-free real-time bandwidth, and pulse profile characterization, it provides comprehensive signal analysis and geolocation via GPS/GNSS.
This device supports 5G TF and LTE over-the-air testing, RF signal I/Q data capture, and includes essential accessories like a Li-ion battery, LAN cable, and a backpack-style soft carrying case.
Testwall can supply the used Keysight (Agilent) N9938A, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) N9938A.





