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Used Meters + Handhelds

The Used Equipment web is currently available in English only and pricing is in USD for the United States.Prices for other countries will vary.

Showing 6 Results
  • Like-new Condition
  • Updated Firmware
  • Full Calibration
  • New Accessories
  • Like-new Warranty
  • Customization possible

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  • Savings of up to 90%
  • Working Condition
  • Calibrated or Tested
  • 30-Day Right-of-Return
  • No Customization
  • Shipping to limited countries

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Quick View Details

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.

  • Standard model includes cable and antenna analyzer (CAT).
  • Capture elusive signals with 100 MHz gap-free, real-time bandwidth.
  • Measure all four S-parameters simultaneously with 115 dB dynamic range.
  • Make accurate spectrum analyzer measurements (± 0.3 dB) without warmup.
  • Perform over-the-air measurements for 5G NR and LTE.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.4 kg (7.4 lb).

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

Quick View Details
010VECTOR NETWORK ANALYZER TIME DOMAIN
030REMOTE CONTROL CAPABILITY
208USB POWER SENSOR MEASUREMENTS VERSUS FREQUENCY
209EXTENDED RANGE TRANSMISSION ANALYSIS (ERTA)
210VECTOR NETWORK ANALYZER TRANSMISSION/REFLECTION
211VECTOR NETWORK ANALYZER FULL 2-PORT S-PARAMETERS
2121-PORT MIXED-MODE S-PARAMETERS
215TDR CABLE MEASUREMENTS
233SPECTRUM ANALYZER
235PRE-AMPLIFIER
236INTERFERENCE ANALYZER AND SPECTROGRAM
238SPECTRUM ANALYZER TIME GATING
302USB POWER SENSOR SUPPORT
307GPS RECEIVER
308VECTOR VOLTMETER
309DC BIAS VARIABLE-VOLTAGE SOURCE
310BUILT-IN POWER METER
312CHANNEL SCANNER
330PULSE MEASUREMENTS
350REAL-TIME SPECTRUM ANALYZER (RTSA)
351I/Q ANALYZER
352INDOOR AND OUTDOOR MAPPING
355ANALOG DEMODULATION
356NOISE FIGURE MEASUREMENTS
358EMF MEASUREMENTS
360PHASED ARRAY ANTENNA CONTROL
370OVER THE AIR LTE FDD MEASUREMENTS
371OVER THE AIR LTE TDD MEASUREMENTS
377OVER THE AIR 5G TF MEASUREMENTS
378OVER-THE-AIR (OTA) 5G NR MEASUREMENTS
B10BANDWIDTH, 100 MHZ

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.

  • Standard model includes cable and antenna analyzer (CAT).
  • Capture elusive signals with 100 MHz gap-free, real-time bandwidth.
  • Measure all four S-parameters simultaneously with 115 dB dynamic range.
  • Make accurate spectrum analyzer measurements (± 0.3 dB) without warmup.
  • Perform over-the-air measurements for 5G NR and LTE.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.4 kg (7.4 lb).

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

Quick View Details
235PRE-AMPLIFIER
236INTERFERENCE ANALYZER AND SPECTROGRAM
307GPS RECEIVER
350REAL-TIME SPECTRUM ANALYZER (RTSA)
B10BANDWIDTH, 100 MHZ

Never Sacrifice Capability or Portability

Keysight's FieldFox handheld spectrum 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 120 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)

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

Quick View Details

Never Sacrifice Capability Or Portability

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

  • 300 kHz to 50 GHz frequency range
  • Base model includes a cable and antenna tester (CAT)
  • Add software-defined measurement functions according to your needs.
  • Capture elusive signals with 120 MHz gap-free, real-time bandwidth.
  • Measure all four S-parameters simultaneously with 105 dB dynamic range.
  • Make accurate spectrum analyzer measurements (± 0.2 dB) without warmup.
  • Perform over-the-air measurements for 5G NR and LTE.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.4 kg (7.4 lb).

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

Quick View Details
010VECTOR NETWORK ANALYZER TIME DOMAIN
030REMOTE CONTROL CAPABILITY
208USB POWER SENSOR MEASUREMENTS VERSUS FREQUENCY
209EXTENDED RANGE TRANSMISSION ANALYSIS (ERTA)
210VECTOR NETWORK ANALYZER TRANSMISSION/REFLECTION
211VECTOR NETWORK ANALYZER FULL 2-PORT S-PARAMETERS
2121-PORT MIXED-MODE S-PARAMETERS
215TDR CABLE MEASUREMENTS
233SPECTRUM ANALYZER
235PRE-AMPLIFIER
236INTERFERENCE ANALYZER AND SPECTROGRAM
238SPECTRUM ANALYZER TIME GATING
302USB POWER SENSOR SUPPORT
307GPS RECEIVER
308VECTOR VOLTMETER
309DC BIAS VARIABLE-VOLTAGE SOURCE
310BUILT-IN POWER METER
312CHANNEL SCANNER
330PULSE MEASUREMENTS
350REAL-TIME SPECTRUM ANALYZER (RTSA)
351I/Q ANALYZER
352INDOOR AND OUTDOOR MAPPING
353IQ STREAMING
355ANALOG DEMODULATION
356NOISE FIGURE MEASUREMENTS
358EMF MEASUREMENTS
360PHASED ARRAY ANTENNA CONTROL
361EMI MEASUREMENTS
370OVER THE AIR LTE FDD MEASUREMENTS
371OVER THE AIR LTE TDD MEASUREMENTS
377OVER THE AIR 5G TF MEASUREMENTS
378OVER-THE-AIR (OTA) 5G NR MEASUREMENTS
390DIRECTIONAL FINDING - TDOA NODE SUPPORT
391DIRECTIONAL FINDING - ANGLE OF ARRIVAL (AOA)
B10BANDWIDTH, 100 MHZ

Never Sacrifice Capability Or Portability

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

  • 300 kHz to 50 GHz frequency range
  • Base model includes a cable and antenna tester (CAT)
  • Add software-defined measurement functions according to your needs.
  • Capture elusive signals with 120 MHz gap-free, real-time bandwidth.
  • Measure all four S-parameters simultaneously with 105 dB dynamic range.
  • Make accurate spectrum analyzer measurements (± 0.2 dB) without warmup.
  • Perform over-the-air measurements for 5G NR and LTE.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.4 kg (7.4 lb).

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

Need Tech Support?

Not sure which model perfectly fits your application needs? Get in touch and let our experts help you.

Quick View Details
235PRE-AMPLIFIER
236INTERFERENCE ANALYZER AND SPECTROGRAM
238SPECTRUM ANALYZER TIME GATING
350REAL-TIME SPECTRUM ANALYZER (RTSA)

Never Sacrifice Capability or Portability

Keysight's FieldFox handheld spectrum 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.

  • 5 kHz to 50 GHz frequency range
  • Make accurate spectrum analyzer measurements (± 0.5 dB) without warmup.
  • Capture intermittent signals with 10 MHz gap-free, real-time bandwidth.
  • Characterize radar pulse profiles with a portable solution.
  • Perform over-the-air measurements for 5G TF and LTE.
  • Capture I/Q data for RF signal monitoring and analysis.
  • Use GPS/GNSS for geolocation and timestamping.
  • Carry one lightweight unit at 3.2 kg (7.1 lb).

Adding options and accessories may impact shipping times

Request a customized version of this model by requesting a Custom Quote

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Keysight Used
Keysight
Configuration: No customization available
Shipping: Limited countries only
Warranty: 90 days
Accessories Not included

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Keysight Used

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Meters + Handhelds Quick-Facts

What is a FieldFox Handheld Analyzer?

The Keysight FieldFox Handheld Analyzer is a handheld radiofrequency and microwave monitor with a frequency range between 3 kHz and 300 GHz. It is among the most integrated handheld portable analyzers on the market and is built to work in the toughest working environment. It can measure the most important and essential electrical parameters that are of profound importance in today's power grids, such as voltage, current, frequency, and power quality. FieldFox is easy to use and does not require extensive training for the user.

The unit is equipped with 30 different measurement functions and utilities. Some measurement functions included are Spectrum Analyzer, Real-Time Spectrum Analyzer, Vector Network Analyzer, Cable and Antenna Analyzer, and Extended Range Transmission Analysis.

For more information on the features of the FieldFox Handheld Analyzer, click here to Get To Know FieldFox.

What is radio frequency?

An alternating electrical current or a magnetic, electric, or electromagnetic field or mechanical system's oscillation rate that lies around 20 kHz to around 300 GHz is known as radiofrequency. Frequencies immediately below RF are audio frequency (AF) ranging from 20 Hz to 20 kHz Radio frequency covers all the way upto the range of extremely high frequency.

This definition refers to the electromagnetic waves themselves, which carry the radio data signals being part of today's most important technologies. Radio frequencies are also called "radiotelephone frequencies" when used as a radio telephony system.

What frequency range does a Fieldfox have?

FieldFox Handheld Analyzers operate from 3 kHz to 300 GHz. This range is wide enough to allow complete testing of most power grids and high voltage equipment. It is also used to analyze microwave components such as filters, couplers and other devices.

Fieldfox vs. Oscilloscope – What's the difference?

Oscilloscopes are used to measure voltage waves, while FieldFox Handheld Analyzers can perform most electrical measurements and can enhance the capabilities of analyzers. Oscilloscopes operate with frequencies up to the hundreds of MHz range and with bandwidths of around 100 MHz or higher. There are many applications where the oscilloscope's frequency range will not be wide enough to provide a quality measurement. A major reason is the oscilloscope’s limitation as it lacks the capability of examining high frequency sharp rise time transients.FieldFox Handheld Analyzers have a much wider frequency range, going from 3 kHz to 300 GHz, with a typical limit of 10 MHz.

Although FieldFox Handheld Analyzers are not oscilloscopes, they allow you to create waveforms that resemble voltage or current signals within known component specifications. For example, the spectrum analyzer function produces a graph that resembles an oscilloscope display.

FieldFox Handheld Analyzers are capable of analyzing power grids where oscilloscopes cannot reach. Since the FieldFox runs on battery or USB power, it can go to the job site, where other instruments cannot.

For a full list of oscilloscopes that we carry, please visit the used equipment product category page.

Fieldfox vs. signal generator – what's the difference?

Signal generators produce electrical signals at the desired frequency over a range of voltages. The FieldFox can test equipment, subsystems, or complete systems. What sets them apart from traditional signal generators is that they can test both RF signals and power grids simultaneously.

The FieldFox Handheld Analyzer is different from a signal generator because it can generate a signal and measure many parameters with one hand-held device. It does not need a separate power supply or calibration, the only thing needed is the unit itself as it is portable and battery-powered. This makes it more efficient for field test engineers to use.

For a full list of signal generators that we carry, visit the product category page.

Fieldfox vs. spectrum analyzer – what's the difference?

Spectrum analyzers display the amplitude and frequency of a signal within a specific bandwidth according to the frequency range of the given instrument. A spectrum analyzer measures power over a range of frequencies instead of a specific frequency.

FieldFox Handheld Analyzers are different from spectrum analyzers because they can simultaneously test RF signals and power grids. FieldFox can do all the measurement functions that a spectrum analyzer and oscilloscope can do without needing separate instruments for each function, making it more efficient to use in many situations.

For a full list of spectrum analyzers that we carry, visit our product category page.

Can I save Fieldfox data to a USB drive?

Yes, the unit is equipped with an integrated USB port that enables the user to download recorded waveforms and data to a PC running FieldFox software. But, you will need a standard USB cable for this purpose.

Can I Use a LAN Connection with my FieldFox?

Yes, LAN connections are compatible with the FieldFox handheld analyzer which allows you to send your data to a computer. The setup is simple and can be done through the LAN wizard in the Windows control panel. But, you need to make sure that the LAN connection is 100Base-T speed or faster in case you choose the firmware A.03.06 or earlier.

How do I calibrate my Fieldfox?

The FieldFox is equipped with CalReady and QuickCal built-in software that makes calibrating in the field simple and efficient. FieldFox also provides a selection of mechanical calibration types when a calibration kit is available. Regardless of how you are calibrating, the FieldFox will walk you through performing a user calibration using the built-in "Calibration Wizard," which guides you step by step.

Note: This way of calibrating is available in all Fieldfox “A” models.