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the right noise source for your specific needs

Whether you are working with systems, subsystes, subassemblies, or discrete devices, each of your components add noise that affects the overall performance of your receiver. By measuring and reducing noise figure, you can give your components a competitive edge.

This series of broadband noise sources has been designed to cover high frequency waveguide measurement applications.

The R347B waveguide noise source cover the R-band (26.5 to 40 GHz frequency range), while the Q347B model cover the Q-band (33 to 50 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices.

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Q347B
Q347B Millimeter-Wave Noise Source, Q-band, 33 to 50 GHz 
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The Q347B waveguide noise source (33 to 50 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices.
R347B
R347B Millimeter-Wave Noise Source, R-band, 26.5 to 40 GHz 
Starting from  
The R347B waveguide noise source, (26.5 to 40 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices.
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Featured Resources for the 347 Noise Source Family

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 2021.01.24

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.

2021.01.24

Application Notes 2019.09.24

Noise Figure Measurements: 10 Hints

Noise Figure Measurements: 10 Hints

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.

2019.09.24

White Papers 2018.06.25

Three Ways USB Noise Sources Help You Removing Uncertainty in Y-factor Measurements

Three Ways USB Noise Sources Help You Removing Uncertainty in Y-factor Measurements

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

2018.06.25

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