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.

What's included:

  • AC/DC adapter
  • Rechargeable Li-ion battery
  • Soft carrying case with backpack and shoulder strap
  • Standard model includes cable and antenna analyzer (CAT)

EU customers only:

  • Contact Keysight Authorized Distributors for quotation and ordering. This model is no longer available directly from Keysight due to lack of compliance with EU RoHS 2011/65/EU.
Number of Built-In Ports
2 ports
Maximum Frequency
4 or 6 GHz
Number of Built-In Ports
Maximum Frequency
2 ports
4 or 6 GHz
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Additional CAT/VNA Based Features:
QuickCal (Subset)
DTF/TDR Cable Measurements
Mixed-Mode S-Parameters
Vector Voltmeter
Additional SA Based Features:
Built-In Power Meter
AM/FM Tune and Listen
Cable and Antenna Analysis
Field Strength Measurement
Stimulus Response
10 MHz
Bandwidth Options:
10 MHz
Cable and Antenna Analyzer:
Yes - Standard
DANL @1 GHz:
-148 dBm
Form Factor:
4 or 6 GHz
Instrument Type:
Combination Analyzer
Maximum Analysis Bandwidth:
10 MHZ
Maximum Frequency:
4 or 6 GHz
Measurement Functions:
Network analysis
Spectrum analysis
Cable and antenna tester
Minimum Frequency:
2 MHz
Number of Built-In Ports:
2 ports
Output Power:
Up to 8 dBm
Overall Amplitude Accuracy:
±0.35 dB
Phase Noise @1 GHz (1 MHz offset):
-115 dBc/Hz
Phase Noise @1 GHz (10 kHz offset):
-88 dBc/Hz
Phase Noise @1 GHz (30 kHz offset):
-89 dBc/Hz
Power Measurement Using USB Sensor:
CW or Swept-Frequency
RF Pulse Test with Peak Sensor
SA Start Frequency:
5 kHz
Spectrum Analyzer:
Yes - Optional
Standard Attenuator Range:
31 dB
Standard Attenuator Step:
1 dB
System Dynamic Range:
72 dB
System Features:
GPS Receiver - External Only
Remote Control Capability
TOI @1 GHz (3rd Order Intercept):
+18 dBm
Vector Network Analyzer:
Yes - Optional

Buy One FieldFox, Get Two Software Free

Do you work with radio frequency (RF) cable trouble-shoots, over-the-air (OTA) wireless communications, analog radio, or electromagnetic interference (EMI) pre-compliance testing? Claim your offer today!

Purchase a qualifying FieldFox Handheld Analyzer and get two of our most popular FieldFox software options for free.

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