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Highlights

Never Sacrifice Capability Or Portability

Keysight's FieldFox portable analyzers are equipped to handle your toughest working environments during routine maintenance, in-depth troubleshooting, and anything in between. Choose the Keysight FieldFox configuration that best meets your needs.

  • Make accurate spectrum analyzer measurements (± 0.3 dB) without warmup.
  • Capture intermittent signals with 100 MHz gap-free, real-time bandwidth.
  • Characterize radar pulse profiles with a portable solution.
  • Perform over-the-air measurements for 5G NR and LTE.
  • Capture I/Q data for RF signal monitoring and analysis.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.4 kg (7.4 lb).

What's included:

  • AC/DC adapter
  • Localized power cord
  • Rechargeable Li-ion battery
  • LAN cable
  • Soft carrying case with backpack and shoulder straps
  • Quick Reference Guide

KEY SPECIFICATIONS

Number of Built-In Ports
2 ports
Dynamic Range
n/a
Maximum Frequency
26.5 GHz
Output Power
Up to 1 dBm
Type
Handheld
Number of Built-In Ports
Dynamic Range
Maximum Frequency
Output Power
Type
2 ports
n/a
26.5 GHz
Up to 1 dBm
Handheld
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Additional SA Based Features:
Real-Time Spectrum Analysis
Noise Figure Measurements
Over-The-Air Measurements
Built-In Power Meter
Extended Range Transmission Analysis (ERTA)
Applications Available:
n/a
Applications-Cellular:
89600 VSA Software
Over-The-Air LTE FDD and 5GTF
5G NR
Applications-Digital Video:
89600 VSA Software
Applications-General Purpose:
AM/FM Tune and Listen
Field Strength Measurement
SCPI Code Compatibility
Spectrogram
Stimulus Response
Applications-Wireless Connectivity:
89600 VSA Software
Bandwidth Options:
10 standard, 40, 120 MHz
Cable and Antenna Analyzer:
No
DANL @1 GHz:
-163 dBm
Dynamic Range:
n/a
Frequency Options:
n/a
Instrument Type:
Spectrum Analyzer
Maximum Analysis Bandwidth:
120 MHz
Maximum Dynamic Range 3rd Order @1 GHz:
n/a
Maximum Frequency:
26.5 GHz
Number of Built-In Ports:
2 ports
Output Power:
Up to 1 dBm
Overall Amplitude Accuracy:
±0.2 dB
Performance Level:
◆◆◆◇◇◇
Phase Noise @1 GHz (1 MHz offset):
-124 dBc/Hz
Phase Noise @1 GHz (10 kHz offset):
-117 dBc/Hz
Phase Noise @1 GHz (30 kHz offset):
-115 dBc/Hz
Power Measurement Using USB Sensor:
Frequency-Offset
CW or Swept-Frequency
RF Pulse Test with Peak Sensor
SA Start Frequency:
5 kHz
Spectrum Analyzer:
Yes - Standard
Standard Attenuator Range:
40 dB
Standard Attenuator Step:
5 dB
System Features:
GPS Receiver - Internal Only
Remote Control Capability
Built-In DC Source
Type:
Handheld
Trace Update 100 MHz Span:
25 Updates Per Second
Vector Network Analyzer:
No

N9938B FieldFox Handheld Software

Make your FieldFox handheld analyzer more capable with convenient software upgrades — engineered to deliver precise measurements in the field.

  • Carry one portable instrument that handles routine maintenance and in-depth troubleshooting
  • Configure as a spectrum analyzer, built-in power meter, tracking generator, and more
  • Order software pre-installed or upgrade an existing instrument

PathWave Vector Signal Analysis (89600 VSA) Software

  • Record signals in the field and evaluate them later using 89600 VSA.
  • Demodulate and perform comprehensive vector signal analysis to optimize your deployment.
  • Decode and verify MAC, RLC, and RRC-layer messages across multiple radio frames.
  • Analyze and troubleshoot signals in cellular, wireless-connectivity, aerospace, defense, and general-purpose applications.

Interested in the N9938B?

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