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ID: P08-100564

Keysight N9042B-550

UXA Signal Analyzer / 2 Hz to 50 GHz

ID: P08-100564
Keysight N9042B-550 2 Hz to 50 GHz
Keysight N9042B-550 2 Hz to 50 GHz
Keysight N9042B-550 2 Hz to 50 GHz
Keysight N9042B-550 2 Hz to 50 GHz

Keysight N9042B-550

UXA Signal Analyzer / 2 Hz to 50 GHz

Refurbished, like New
Like New Warranty
Accessories Included
KeysightCare available

List Price USD 241,275.00 Save 50%
USD 120,637.50 Excl. taxes.
Not combinable with other discounts.

$20,142 value now $6,848
For professional and industrial use only.
Ships from Malaysia.
Ships to United States within 8 weeks.
Request Quote

Keysight N9042B-550 2 Hz to 50 GHz
Keysight Premium Used
Keysight N9042B-550
UXA Signal Analyzer / 2 Hz to 50 GHz
Configuration: ESC, EXW, R20
Customization available
Shipping: Limited countries only
Warranty: Like New Warranty
Accessories Standard accessories included

Cannot ship to:

European Union

Unit only ships within China.

Unit ships worldwide.

Special Deal
Keysight N9042B-550 2 Hz to 50 GHz

Keysight Premium Used

Keysight  N9042B-550


USD 120,637.50 Save 50%

Installed Options

550Frequency Range, 2 Hz To 50 GHz
ESCExternal source control
EXWExternal mixing, wide bandwidth
R20Analysis Bandwidth, 2 GHz

Addable Options

1DVR001AROM/CD-R/RW drive
1RMAdapter-Coaxial Straight Jack-BNC Plug-SMA 50-Ohm
2CMRack mount flange kit 265.9mm H (6U) - two flange brackets, two standard rails
2CPRack mount flange and handle kit 265.9mm H (6U) - two brackets, handles, rails
2RMAdapter-Coaxial Tee Female-BNC Male-BNC Female BNC
3RMCable Assembly-Coaxial RG-58 50-Ohm BNC-Male BNC-Male 2m-LG
4RMPCIe cable, x4-x8, 2 meter
5RMCable Assembly-Coaxial 50-Ohm SMA-Plug SMA-Plug 610mm-LG
6RMCable Assembly-Coaxial 50-Ohm SMA-Plug SMA-Plug 1219mm-LG
7RMCable-Assembly USB A to Mini-B 3m-LG
8RMAdditional Optical Data Interface Cable, 1m
9RMOptical Data Interface Cable, 3m
ALVAuxiliary log video output
CRPConnector Rear, Programmable IF output
CRWConnector, IF out, wide
EA3Electronic attenuator, 3.6 GHz
EDCExternal digitizer control
ESCExternal source control
EXWExternal mixing, wide bandwidth
N6141EM0EEMI Measurement Application
N9055EM0EPower Amplifier Measurement Application
N9056EM0EChannel Quality Measurement Application
N9061EM0ERemote Language Compatibility Measurement Application
N9062EM0ESCPI Language Compatibility Measurement Application
N9063EM0EAnalog Demodulation Measurement Application
N9068EM0EPhase Noise Measurement Application
N9069EM0ENoise Figure Measurement Application
N9071EM0EGSM/EDGE/Evo Measurement Application
N9072EM0Ecdma2000 measurement application, remote control only
N9073EM0EW-CDMA/HSPA+ Measurement Application
N9076EM0E1xEV-DO measurement application, remote control only
N9077EM0EWLAN 802.11a/b/g/j/p/n/af/ah Measurement Application
N9054EM0EVector Modulation Analysis Digital Demodulation Measurement Application
N9079EM0ETD-Scdma/HSPA measurement application, remote control only
N9080EM0ELTE and LTE-Advanced FDD Measurement Application
N9081EM0EBluetooth (TM) Measurement Application
N9082EM0ELTE and LTE-Advanced TDD Measurement Application
N9084EM0EShort Range Communications and IoT Measurement Application
N9085EM0E5G NR Measurement Application
N9054EM1EVector Modulation Analysis Custom OFDM Application
N9077EM1EWLAN 802.11ac/ax Measurement Application
N9077EM2EWLAN 802.11be Measurement Application
N9080EM3ENB-IoT and eMTC FDD Measurement Application
N9080EM4ELTE V2X measurement application
N9085EM4ENR V2X Measurement Application
N9042MMOBMulti-box Synchronization for MIMO
P26Preamplifier, 26.5 GHz
N90EMFP2BFast power
P44Preamplifier, 44 GHz
P4LPreamplifier, 44 GHz, basic
P50Preamplifier, 50 GHz
P5LPreamplifier, 50 GHz, basic
R10Analysis Bandwidth, 1 GHz
R15Analysis Bandwidth, 1.5 GHz
R20Analysis Bandwidth, 2 GHz
R40Analysis Bandwidth, 4 GHz
SF1Security features, exclude launching programs
SF2Security features, prohibit saving results
N90EMPSMBPower Suite Measurement Application
N9042RTABReal-time analysis, up to 1 GHz BW, Basic Detection
N9042RTBBReal-time analysis, up to 1 GHz BW, Optimum Detection
N9042RTEBReal-time analysis, up to 2 GHz BW, Basic Detection
N9042RTFBReal-time analysis, up to 2 GHz BW, Optimum Detection
N90EMBWSBSoftware-based IQ Bandwidth Expansion
YAVScreen video, log video and linear video

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

Product Specifications

Test the real performance of your millimeter-wave (mmWave) innovations in 5G, satellite, radar, and more with our N9042B UXA X-Series signal analyzer and measurement applications. The N9042B provides the industry's widest analysis bandwidth and deepest dynamic range to help you solve your most difficult mmWave challenges — tight design margins and timelines, complex modulation, and stringent standards.

  • Ensure your designs meet the latest standards with ready-to-use measurement applications and signal analysis software
  • See signals clearly with an unbanded, preselected sweep from 2 Hz to 50 GHz and 4 GHz of analysis bandwidth
  • Test the true performance of your 5G NR transmitter with the industry's best error vector magnitude (EVM)
  • Find out-of-band emissions or spurs quickly in your radar designs with the industry's best swept displayed average noise level (DANL)
  • Develop high-throughput satellite communication designs with 4 GHz of corrected analysis bandwidth


  • Bandwidth Options: 1, 1.5, 2, and 4 GHz
  • DANL @1 GHz: -174 dBm
  • Frequency: 2 Hz to 50 GHz, with V3050A 110 GHz
  • Frequency Options: 26.5, 44, 50 GHz, with V3050A 50 GHz to 67, 90, 110 GHz
  • Height: 6U
  • Maximum Analysis Bandwidth: 4 GHz
  • Maximum Frequency: 50 GHz
  • Overall Amplitude Accuracy: ± 0.24 dB
  • Phase Noise @1 GHz (10 kHz offset): -135 dBc / Hz
  • TOI @1 GHz (3rd Order Intercept): +22 dBm


Standard accessories included.

For additional accessories, please search Keysight Accessories

Ready To Get Started?

What You Get

  • Keysight N9042B-550 Spectrum Analyzers
  • Fresh Calibration
  • Like-New standard accessories
  • Like-New Warranty
  • Agreed-On configuration

What You Can Add

  • Extended Warranty
  • KeysightCare Assured / Extended
  • Calibration Plan
  • Software (depending on model)

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What are the main differences between Keysight New, Keysight Premium Used & Keysight Used equipment?

  Keysight New Keysight Premium Used Keysight Used
Savings None Up to 70% Up to 90%
Condition New Like New Working Condition ¹
Firmware Latest Updated As is
Calibration Full Full As listed
Accessories New New As listed
Warranty 1 to 5 Years ² Like New 90 Days Warranty
Customization Possible Possible Limited

Learn more about Keysight Premium Used Here

Can I configure a unit to meet my personal needs?

Customization is generally possible with our Keysight Premium Used equipment. The majority of our Keysight Premium Used equipment can be configured just the way you need it. Options can be added at additional cost.
Customizing Keysight Premium Used equipment might change the delivery and lead time of the item.

Some Keysight Used products cannot be customized. Use the contact option on the product page to check with the our eStore team.

What accessories are included?

Keysight Premium Used equipment typically comes with the same accessories and warranty as new products.

Can you include other accessories?

We currently only offer those accessories which are part of the listing. Other accessories can be purchased separately at extra cost with your purchase of a Keysight Used or Keysight Premium Used unit.

Please mention in the comment field which additional accessories or support you are interested in.

For seperate or post-purchase ordering, please contact your local Keysight office or Keysight Partner here. Or check our online store if available for your region here.

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Spectrum + Signal Analyzers Quick-Facts

What is a signal analyzer?

A signal analyzer is a device used to test and measure electronic signals. Types of signals can vary, including voltage, current, and radiofrequency. Signal analyzers vary in their capabilities and features, depending on the application. There are many types of signal analyzers, but the most common type is an oscilloscope. Other types include spectrum analyzers, network analyzers, and signal generators.

An oscilloscope is a device used when designing electronic systems that allows a signal to be viewed as a waveform. A spectrum analyzer measures the amplitude and frequency of signals over a specific period of time. A network analyzer analyzes circuits without having access to their design details; this can be helpful when there is a delay between creating a circuit and testing it. A signal generator generates signals which are then used by other devices.

  • There are many uses for a signal analyzer, depending on the type of device and features available. Some standard capabilities include:

  • Generating and analyzing signals

  • Magnifying and analyzing large signals

  • Displaying waveforms of varying types

  • Displaying the full frequency range of a signal, including visual representations of different frequencies and noise levels

Vector Signal Analyzer vs Spectrum Analyzer – What's the difference?

A signal analyzer analyzes signals that have already been generated, whereas a spectrum analyzer is used to discover frequencies or actually generate frequencies itself.

A spectrum analyzer performs real-time spectrum analysis and measures instantaneous power or peak power, voltage, or current, depending on the type of signal being analyzed. It is also often used to monitor electromagnetic interference in circuits and devices.

On the other hand, a signal analyzer can only measure signals that are already present; it cannot be used to discover or analyze frequencies. Its purpose is to help the user identify electronic circuit problems and understand how the circuit is performing.

Signal Analyzer vs Oscilloscope – What's the difference?

The main difference between a signal analyzer and an oscilloscope is that a signal analyzer analyzes the voltage of a signal over a specific period of time. In contrast, an oscilloscope extracts the timing information of a signal.

An oscilloscope is a type of signal analyzer used to measure voltage signals over time. It has various features, including analog and digital functions, advanced triggering capabilities, and connectivity options. It is used to analyze signals from many different sources, such as time-domain signals, frequencies from radiofrequencies, or extremely low-frequency sources.

A signal analyzer is used to analyze signals that have already been generated. A signal analyzer is often used to monitor electromagnetic interference in circuits and devices, whereas an oscilloscope can only measure signals that are already present.

Figure. 2 Oscilloscope vs. Signal Analyzer

Read our oscilloscope basics guide to learn more about oscilloscopes and their uses. To see our full range of new and used oscilloscopes, visit our product listing page.

Signal Analyzer vs. Vector Network Analyzer – What's the difference?

A network analyzer is used to test the performance of wired or wireless networks by examining both transmitted and received signals. Unlike a signal analyzer, it performs advanced analysis of both transmitted and received signals. It is different from a signal analyzer because it performs a live, real-time, analysis of signals on the device under test. In contrast, a signal analyzer only analyzes data after the signal has been created.

A network analyzer can also perform analysis and detect problems that prevent a signal from reaching its destination. For example, it can detect issues with cabling, connectors, or faulty equipment. It can also help resolve RF spectrum and Wi-Fi issues, such as interference and signal loss.

A signal analyzer is used by engineers to identify problems in electronic circuits and to understand how a circuit is behaving; for example, monitoring electromagnetic interference between multiple signals or devices. This makes it useful for testing and debugging circuits that use radio signals or other powerful sources of potential interference.

How to measure antenna impedance with a signal analyzer?

An antenna's impedance refers to the way it responds to signals from specific frequencies. If you want to know what sort of wireless signal a device is sending, you should evaluate the antenna's impedance with a spectrum analyzer. The device would help you determine whether or not your antenna is being affected by noise, which can negatively impact performance.

To measure your antenna's impedance, you can attach a spectrum analyzer to the end of the coaxial cable connected to the back of your antenna. The device will then calculate the impedance being transmitted once it goes through your coaxial cable.

How to measure phase noise with a signal analyzer?

Phase noise is a type of signal that often disrupts or interferes with wireless communication. It is a problem for devices that operate in the wireless frequency spectrum. If phase noise is common across specific frequencies, it can drown out other signals.

There are many different types of phase noise, and each one can affect your wireless technology differently. A signal analyzer measures the phase noise across different frequencies. The device will help you to determine whether your intended wireless communication needs some sort of interference protection.

To measure your device's phase noise with a signal analyzer, you can attach the device to the input of your receiver. This will allow the signal analyzer to calculate how much phase noise is being sent through your wireless communication devices.

How to measure return loss with a signal analyzer?

The return loss is the measurement of how much signal is reflected or wasted at a particular point. It is a measurement of how much energy is being lost in transmission. You can measure return loss with a spectrum analyzer which may enable you to improve the power and efficiency of your wireless connection.

If the return loss is too high, it could indicate power-management issues within your system. A signal analyzer can help you determine whether the return loss is too high, and help you find any hardware issues needing to be resolved. The device can notify you when your power-management settings fall below requirements for successful wireless communication.

To test a device’s return loss with a signal analyzer, plug the spectrum analyzer into the end of a coaxial cable connected to your intended transmitter. The device will determine how much signal is lost after it goes through the cable and exits to reach its intended recipient.

For additional information about how to use your spectrum analyzer to measure return loss, view “Features Resources” for a technical overview of a basic spectrum analyzer as well as an example of how to measure the return loss of an antenna.