Resolution and Video Bandwidth in a Spectrum Analyzer (RBW VBW)

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Resolution and Video Bandwidth settings on Receivers and Spectrum Analyzers, are specified by various governing regulatory bodies for compliance testing.


This is a tutorial and demonstration of the basics of the Resolution BW (RBW) and Video BW (VBW) functions in a Spectrum Analyzer. You may wish to review the “Basics of a Spectrum Analyzer” video if you are unfamiliar with the basic functions and block diagram of a swept spectrum analyzer.

For more info on Spectrum Analyzer basics view the tutorial video: This Video covers the definition of these terms, where they exist in the analyzer, what they do, and the effects they have on the displayed results.

Article: W2AEW
Editor: M. Danmole’
Image: W2AEW