Keysight
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The Keysight N 8975 A is a noise figure analyzer. The Keysight N 8975 A has a frequency range of 10 MHz to 26.5 GHz. The Keysight N 8975 A supports simultaneous noise figure and gain measurements.[1][2][3]
The Keysight N8975A is a noise figure analyzer for RF and microwave measurements. The N8975A measures noise figure and gain, and it supports analysis of amplifiers and frequency-translating devices.[2][5][6]
The N8975A has a specified frequency range from 10 MHz to 26.5 GHz. The N8975A uses an APC 3.5 male RF input connector as standard.[1][2][3]
The N8975A supports simultaneous noise figure and gain measurements. The N8975A also supports external local-oscillator control through a dedicated second GPIB connection for frequency-translating devices.[2][5][1]
The N8975A provides selectable measurement bandwidths and graphical display formats for measured data. The N8975A also supports display and output of results in multiple formats, including graphical, tabular, and meter views.[1][2]
The N8975A fits in RF receiver, amplifier, and converter characterization after device assembly and before final performance verification. The instrument supports measurement of devices that require noise figure and gain evaluation as part of development or production test.[2][5]
The N8975A is used with noise sources and can accept SNS series noise sources. The N8975A also supports amplifier and frequency-converting-device measurements that involve an external local oscillator.[2][3]
The N8975A is used for noise figure and gain characterization of amplifiers. The N8975A is also used for frequency-translating devices, including converters that require local-oscillator control.[2][5]
The N8975A is specified for RF and microwave work through 26.5 GHz. The N8975A supports measurements with compatible noise sources and supports output, printing, and saving of measurement results.[1][2]
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The following facts about the N 8975 A 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 N 8975 A are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the N 8975 A 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 N 8975 A 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 N 8975 A are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the N 8975 A is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 6, 2026.