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Field technician using FieldFox and radio

Never Sacrifice Capability or Portability

Address your modern communication network issues at higher frequencies and wider bandwidths. Whether you are up high on a tower or in the furthest reaches of civilization, you need reliable test gear that can weather the conditions and perform precise measurements.

With the most comprehensive set of software-enabled, mmWave measurement tools packed into a single, handheld unit, FieldFox enables you to:

  • verify 5G installations
  • test network coverage
  • troubleshoot interference
  • perform regular maintenance
Download Technical Overview

Find the Model That is Right for You

View All Models

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N9950B
N9950B FieldFox Handheld Microwave Analyzer, 32 GHz 
Ab  
Vector Network Analyzer: Yes - Optional
Spectrum Analyzer: Yes - Optional
Minimum Frequency: 300 kHz
Maximum Frequency: 32 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features:
Mixed-Mode S-Parameters
DTF/TDR Cable Measurements
Vector Voltmeter
N9951B
N9951B FieldFox Handheld Microwave Analyzer, 44 GHz 
Ab  
Vector Network Analyzer: Yes - Optional
Spectrum Analyzer: Yes - Optional
Minimum Frequency: 300 kHz
Maximum Frequency: 44 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features:
Mixed-Mode S-Parameters
DTF/TDR Cable Measurements
Vector Voltmeter
N9953B
N9953B FieldFox Handheld Microwave Analyzer, 54 GHz 
Ab  
Vector Network Analyzer: Yes - Optional
Spectrum Analyzer: Yes - Optional
Minimum Frequency: 300 kHz
Maximum Frequency: 54 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features: n/a
N9960B
N9960B FieldFox Handheld Microwave Signal Analyzer, 32 GHz 
Ab  
Vector Network Analyzer: Nein
Spectrum Analyzer: Yes - Standard
Minimum Frequency: n/a
Maximum Frequency: 32 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features: n/a
N9961B
N9961B FieldFox Handheld Microwave Signal Analyzer, 44 GHz 
Ab  
Vector Network Analyzer: Nein
Spectrum Analyzer: Yes - Standard
Minimum Frequency: n/a
Maximum Frequency: 44 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features: n/a
N9962B
N9962B FieldFox Handheld Microwave Signal Analyzer, 50 GHz 
Ab  
Vector Network Analyzer: Nein
Spectrum Analyzer: Yes - Standard
Minimum Frequency: n/a
Maximum Frequency: 50 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features: n/a
N9963B
N9963B FieldFox Handheld Microwave Signal Analyzer, 54 GHz 
Ab  
Vector Network Analyzer: Nein
Spectrum Analyzer: Yes - Standard
Minimum Frequency: n/a
Maximum Frequency: 54 GHz
SA Start Frequency: 5 kHz
Maximum Analysis Bandwidth: 120 MHz
Additional CAT/VNA Based Features: n/a
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Software-Enabled and Field-Upgradeable

Configure your FieldFox handheld analyzer to meet your specific measurement needs with powerful software options engineered to deliver precise measurements in the field.

  • Carry one portable instrument that supports over 25 different measurement functions.
  • Configure as a VNA, spectrum analyzer, built-in power meter, vector voltmeter, and more.
  • Order software pre-installed or upgrade an existing instrument.
Download Software Brochure

 

Keysight University Course: Essential 5G Field Tests

Enhance your engineering knowledge by signing up for free online classes at Keysight University. Learn about essential field tests for 5G installation, verification, optimization, and troubleshooting using the FieldFox handheld analyzer.

Enroll Now
Keysight MXR-Series software applications - signal integrity, power integrity, protocol decode and trigger applications

Featured Resources

Data Sheets 2023.09.18

FieldFox Handheld Analyzers

FieldFox Handheld Analyzers

The FieldFox datasheet update includes new B model versions.

2023.09.18

Technical Overviews 2023.07.27

FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50/54 GHz

FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50/54 GHz

Now there’s a rugged, dependable handheld designed to deliver precise, lab-grade measurements up to 50 GHz. Learn more about the FieldFox microwave analyzers.

2023.07.27

Configuration Guides 2023.08.06

FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50/54 GHz (B and C models)

FieldFox Handheld Analyzers 4/6.5/9/14/18/26.5/32/44/50/54 GHz (B and C models)

This comprehensive FieldFox handheld analyzer configuration guide provides the potential customers to correctly pick the model and options to best fit their needs in technically and economically. By adding the new information of newly introduced C-Series FieldFox handheld analyzers (Code name Earhart) configuration information, customers can make their best purchase decision on the new C-Series FieldFox and upgrading their existing C-Series FF in later days.

2023.08.06

Posters 2021.03.09

Field Tests for a 5G Future

Field Tests for a 5G Future

This poster shows what 5G coverage will look like in a connected city. It includes field test measurements that make 5G deployment a reality.

2021.03.09

Brochures 2022.02.17

FieldFox Handheld Analyzer Software

FieldFox Handheld Analyzer Software

This brochure discusses the common software option bundles for FieldFox according to application. See how you can configure your unit to meet your test needs.

2022.02.17

Solution Briefs 2023.03.21

FieldFox Microwave Analyzers Portable Satellite Test Solution for Field and Lab Applications

FieldFox Microwave Analyzers Portable Satellite Test Solution for Field and Lab Applications

Learn how to install, maintain, and troubleshoot satellite ground stations and end-user terminals that support satellite networks. Our brief describes a portable, accurate RF satellite test solution based on the FieldFox microwave analyzer. It verifies the performance of amplifiers, frequency converters, over-the-air (OTA) signal quality, transmit power, and more.

2023.03.21

eBooks 2023.03.16

Six Essential 5G Field Tests Using FieldFox Handheld Analyzers

Six Essential 5G Field Tests Using FieldFox Handheld Analyzers

This eBook explains the six essential 5G field tests FieldFox handheld analyzers perform. Make your 5G transformation smooth with path loss characterization, base station coverage testing, and more.

2023.03.16

White Papers 2022.11.22

Four Measurements You Can Perform on the Go

Four Measurements You Can Perform on the Go

This white paper discusses the importance of commonly made radio frequency field measurements: real-time spectrum analysis (RTSA), noise figure, over-the-air measurements (OTA), and cable and antenna test (CAT).

2022.11.22

Application Notes 2020.04.01

Transmission Lines and Reflected Signals

Transmission Lines and Reflected Signals

FieldFox Fundamentals — Lesson 3. Learn the basics of transmission lines and reflected signals with some practice measurements of the reflection coefficient using a FieldFox handheld analyzer.

2020.04.01

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