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Save on the N9912A and N9923A

Price reduction by 20% and 25% for the N9912A and N9923A, respectively, including all options and upgrades with up to 4 or 6 GHz of frequency coverage.

The Industry's Most Integrated Handheld Analyzer

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 software-enabled Keysight FieldFox configuration that best meets your needs.

  • Get frequency coverage up to 54 GHz with precision comparable to benchtop results.
  • Configure FieldFox as a cable and antenna analyzer (CAT), vector network analyzer (VNA), spectrum analyzer, or an all-in-one combination analyzer.
  • Make 5G field test a reality with wide analysis bandwidth up to 120 MHz.
  • Capture small, interfering signals with wideband, real-time analysis.
  • Perform measurements with one of the lightest instruments in the industry — 30% lighter than other handheld analyzers.

Never Sacrifice Capability or Portability

Field testing modern communications networks puts new demands on your equipment and requires trade-offs between capabilities and portability. With over 22 software-enabled measurement capabilities in one portable, battery-powered unit, FieldFox is the most capable handheld analyzer in the industry. Stay ahead of changing measurement requirements by upgrading your handheld analyzer in the field with convenient, user-installable license keys.

PathWave Vector Signal Analysis Software (89600 VSA)

  • 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.

Find the Model That is Right for You

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N9914A
N9914A FieldFox Handheld RF Analyzer, 6.5 GHz 
Starting from  
Vector Network Analyzer: Yes - Optional
Cable and Antenna Analyzer: Yes - Standard
Spectrum Analyzer: Yes - Optional
Minimum Frequency: 30 kHz
Maximum Frequency: 6.5 GHz
SA Start Frequency: 5 kHz
Instrument Type: Combination Analyzer
Additional CAT/VNA Based Features:
QuickCal (Subset)
DTF/TDR Cable Measurements
Mixed-Mode S-Parameters
Vector Voltmeter
N9914B
N9914B FieldFox Handheld RF Analyzer, 6.5 GHz 
Starting from  
Vector Network Analyzer: Yes - Optional
Cable and Antenna Analyzer: Yes - Standard
Spectrum Analyzer: Yes - Optional
Minimum Frequency: 30 kHz
Maximum Frequency: 6.5 GHz
SA Start Frequency: 5 kHz
Instrument Type: Combination Analyzer
Additional CAT/VNA Based Features:
Mixed-Mode S-Parameters
DTF/TDR Cable Measurements
Vector Voltmeter
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Never Miss a Signal

  • Easily capture and demodulate intermittent, beam sweeping technologies used in 5G and radar systems.
  • Detect small signals once masked by stronger signals with RTSA.
  • Measure signals as narrow as 5.52 µs with 100% Probability of Intercept (POI) and full amplitude accuracy.
  • Accelerate communications system development by quickly switching to over-the-air (OTA) measurements.

Extend Your Capabilities with the Right Tools

Get more functionality out of your test instrument today by pairing it with the right accessories to improve productivity and the right Keysight PathWave design and test automation software to accelerate your product development.

Protect Your Innovation Investment

Featured Resources

Flyers 2022.05.04

FieldFox Microwave Analyzers B-Series vs. A-Series Specifications

FieldFox Microwave Analyzers B-Series vs. A-Series Specifications

This is a one-pager to compare the key specs among different models within the FieldFox family.

2022.05.04

Data Sheets 2022.06.16

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

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

This document is the FieldFox Data Sheet

2022.06.16

Data Sheets 2022.05.05

FieldFox Handheld Analyzers

FieldFox Handheld Analyzers

FieldFox datasheet update includes new B model versions

2022.05.05

Technical Overviews 2021.10.31

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

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

2021.10.31

Technical Overviews 2021.10.14

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.

2021.10.14

Configuration Guides 2022.03.04

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

This comprehensive handheld analyzer is here to meet your measurement needs, delivering measurement precision whenever and wherever you need it. Carry the precision of our next generation microwave model, that delivers breakthrough performance and a customer focused design to help drive your innovation.

2022.03.04

Solution Briefs 2022.01.21

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.

2022.01.21

eBooks 2021.03.12

Six Essential 5G Field Tests Using FieldFox Handheld Analyzers

Six Essential 5G Field Tests Using FieldFox Handheld Analyzers

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

2021.03.12

White Papers 2020.05.21

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).

2020.05.21

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

View All Resources

View All Resources

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