Industry White Paper

Key Decibel Facts and Numbers

December 01, 2020 by Rohde & Schwarz

App Note Overview

Many engineers and designers find that decibels appear in many different places: power levels, voltages, reflection coefficients, noise figures, field strengths, and more. But understanding exactly what a decibel is and how to appropriately incorporate it into the design process is trickier than it might appear at first glance, even for seasoned engineers.

In this Application Note from Rohde & Schwarz, readers will get a refresher on the subject of decibels. Topics covered include why to use decibels in certain calculations, how to accurately covert from decibels to percentages, how to use dB values in computations, and what, exactly, can be measured in decibels in the first place. It finishes with some particularly useful values and numbers worth knowing that pertain to decibels.

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