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No product matches found - System Exception
Noise Sources
Range of noise sources for use with the NFA series noise figure analyzer, the X-series signal analyzer, and network analyzer.

Noise Sources Designed to Meet Specific Needs
The Keysight 346, 347, SNS and USB Series of noise sources work in conjunction with several Keysight analyzers to make noise-figure measurements from 10 MHz to 50 GHz.
Noise Source Support | ||||
---|---|---|---|---|
Y-Factor Instruments | SNS Series | 346 Series | 347 Series | USB Smart Noise Source |
CXA | X | X | X | X |
EXA | X | X | X | X |
MXA | X | X | X | X |
PXA | X | X | X | X |
UXA | X | X | X | X |
NFA | X | X | X | X |
M9391A PXIe Vector Signal Analyzers | X | X | X | X |
M9393A PXIe Performance Vector Signal Analyzers | X | X | X | X |
FieldFox Handheld Analyzers | – |
X | – |
– |
Cold Source Instruments | ||||
PNA Vector Network Analyzers | – |
X | – | – |
PXIe Vector Network Analyzers | – |
X | – |
– |
For more information about noise source and noise figure measurement, please visit Noise Figure Analyzer and Noise Source
Find the Series That's Right for You

346 Noise Source Family
This series of broadband noise sources has been designed to cover the majority of measurement applications with a range of frequencies, Excess Noise Ratio (ENR), and coaxial connector types.

347 Noise Source Family
This series of broadband noise sources has been designed to cover high frequency waveguide measurement applications

SNS Series Noise Sources
Works in conjunction with the NFA Series of noise figure analyzers to simplify measurement set-up and improve accuracy and reliability, automatically downloading electronically stored calibration data.

U1831C USB Smart Noise Source, 10 MHz to 26.5 GHz, Nominal ENR 15 dB
The USB-powered U1831C provides broadband noise figure measurements from 10 MHz – 26.5 GHz with modular signal analyzer and benchtop X-Series signal analyzers.
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