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.

Configure as a full, two-port VNA, time-domain reflectometer, vector voltmeter, cable and antenna analyzer, and more
Measure all four S-parameters simultaneously with a single connection and up to 95 dB of dynamic range
Perform accurate testing with QuickCal, full two-port unknown thru Cal, and Thru, Reflect, Line (TRL) calibration in the field
Measure average and pulse power easily with a USB power sensor.
Carry the lightest handheld VNA at only 3.0 kg (6.6 lb.)

What's included:

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

View Technical Overview

Key Specifications

Download Technical Specification

Number of Built-In Ports

2 ports

Maximum Frequency

26.5 GHz

Number of Built-In Ports

Maximum Frequency

2 ports

26.5 GHz

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

Cable and Antenna Analyzer:

Yes - Optional

Dynamic Range:

100 dB

Form Factor:

n/a

Instrument Type:

Vector Network Analyzer

Maximum Frequency:

26.5 GHz

Minimum Frequency:

30 kHz

Number of Built-In Ports:

2 ports

Output Power:

Up to 1 dBm

Spectrum Analyzer:

System Features:

GPS Receiver - Internal Only

Remote Control Capability

Built-In DC Source

Trace Noise:

0.004 dB rms

Type:

Handheld

Vector Network Analyzer:

Yes - Standard

N9928A 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 VNA, built-in power meter, vector voltmeter, and more.
Order software pre-installed or upgrade an existing instrument.

N9928A FieldFox Handheld Software & Free Trials

Instrument Control Software

Easily connect and control your handheld analyzer with no programming.
Acquire screen images and trace data in a few clicks.
Rapidly build custom automated test sequences in minutes.
Includes Application Programming Interfaces (APIs) for instrument control from your PC.