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Keysight

N9042B

Keysight N9042B family
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The Keysight N9042B is a UXA X-Series signal analyzer. The Keysight N9042B has a maximum frequency of 110 GHz. The Keysight N9042B supports standard bandwidth options of 10, 25, 40, and 255 MHz.[1]

KeysightN9042B
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What it is

The N9042B UXA is a signal analyzer in Keysight's X-Series signal analyzer family. The N9042B has a maximum frequency of 110 GHz.[1]

How it works

The N9042B is specified with standard bandwidth options of 10 MHz, 25 MHz, 40 MHz, and 255 MHz, and optional bandwidths of 1 GHz, 1.5 GHz, 2 GHz, and 4 GHz.[1]

Where it fits in the process flow

The N9042B fits into RF design, verification, and characterization work for devices that transmit or receive complex digitally modulated waveforms. The N9042B supports measurement of signals used in wireless communication systems.[1]

Applications

The N9042B is suited to testing wireless communication systems and underlying components that handle complex digitally modulated waveforms. The N9042B is also positioned for RF device characterization in applications that require broad frequency coverage and narrow noise performance.[1]

What do the numbers mean?

Power & electrical4

Bandwidth options
Standard: 10, 25, 40, 255 MHz; Optional: 1, 1.5, 2, 4 GHz[1]
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Phase noise at 1 GHz (10 kHz offset)
-135 dBc / Hz[1]
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Frequency options
2 Hz to 26.5, 44, 50, or 75 GHz[2]
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Analysis bandwidth options
10 MHz, 25 MHz, 40 MHz, 255 MHz, 1 GHz, 1.5 GHz, 2 GHz, 4 GHz; up to 11 GHz with external digitizer[2]
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Control & software1

Operating system
Microsoft Windows 10[3]
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Dimensions & facilities2

Weight
38.6 kg nominal net; 53.9 kg nominal shipping[4]
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Dimensions
281 mm H x 459 mm W x 575 mm L[4]
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Configuration & options9

Model
N9042B[1]
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Product family
UXA X-Series signal analyzer[1]
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Maximum frequency
110 GHz[1]
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Displayed average noise level at 1 GHz
-174 dBm[1]
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Maximum real-time bandwidth
N/A[1]
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Product type
UXA X-Series Signal Analyzer[1]
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Input power maximum safe level
+30 dBm average total power[3]
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Display
1280 x 800 capacitive multi-touch screen, 357 mm (14.1 in.) diagonal[4]
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Calibration cycle
One year recommended[4]
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • Bandwidth optionsStandard: 10, 25, 40, 255 MHz; Optional: 1, 1.5, 2, 4 GHz[1]
  • Phase noise at 1 GHz (10 kHz offset)-135 dBc / Hz[1]
  • Frequency options2 Hz to 26.5, 44, 50, or 75 GHz[2]
  • Analysis bandwidth options10 MHz, 25 MHz, 40 MHz, 255 MHz, 1 GHz, 1.5 GHz, 2 GHz, 4 GHz; up to 11 GHz with external digitizer[2]

Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

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Frequently asked questions

What kind of instrument is the N9042B?

The N9042B is a UXA X-Series signal analyzer.[1][2]

Not publicly documented

The following facts about the N9042B are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the N9042B are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the N9042B are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the N9042B are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the N9042B are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the N9042B is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (4)Every fact above is drawn from these public sources
  1. [1]assets.testequity.com — assets.testequity.comassets.testequity.com
  2. [2]keysight.com — keysight.comkeysight.com
  3. [3]cores.research.asu.educores.research.asu.edu
  4. [4]assets-us-01.kc-usercontent.comassets-us-01.kc-usercontent.com
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Last updated Oct 20, 2026.

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