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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 60 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
M9393A PXIe Performance Vector Signal Analyzers –
 X
 X
 X
M9421A/M9410A/M9411A/M9415A VXT PXIe Vector Transceivers – X
 X
 X
FieldFox Handheld Analyzers –
 X
 –
 X
Cold Source Instruments        
PNA Vector Network Analyzers –
 X
 – X
PXIe Vector Network Analyzers –
 X
 –
 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

Featured Resources

Technical Overviews 2020.04.02

SNS Series Noise Sources

SNS Series Noise Sources

SNS Series of noise sources work in conjunction with NFA Series noise figure analyzers and X-Series signal analyzers.

2020.04.02

White Papers 2022.12.26

Three Ways USB Noise Sources Help You Remove Uncertainty in Y-Factor Measurements

Three Ways USB Noise Sources Help You Remove Uncertainty in Y-Factor Measurements

USB noise sources are a fantastic alternative for noise figure measurements because of their ease, reliability, and versatility.

2022.12.26

Application Notes 2019.09.30

Fundamentals of RF and Microwave Noise Figure Measurements

Fundamentals of RF and Microwave Noise Figure Measurements

Explore information on RF and Microwave noise figure measurements, starting from the concept of noise figure and noise temperature, describing the noise characteristics of two-ports networks, and highlighting the different methods used to measure noise figure, such as Y-Factor and the Direct Noise measurement method.

2019.09.30

Application Notes 2024.10.08

Noise Figure Measurement Accuracy: The Y-Factor Method

Noise Figure Measurement Accuracy: The Y-Factor Method

This app note discusses the fundamentals of noise figure measurement using Y-factor method and how to avoid noise figure mistakes.

2024.10.08

Application Notes 2024.07.04

10 Hints for Making Successful Noise Figure Measurements

10 Hints for Making Successful Noise Figure Measurements

Noise figure is often the key to characterizing a receiver and to detect weak incoming signals. Learn to minimize uncertainties in your noise figure measurements.

2024.07.04

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