Rohde & Schwarz dBCalculator

This application note is an extension to the application note “dB or not dB?” and comes with a free of charge software tool.

The R&S dB Calculator can be used to perform calculations related to decibel. The tool includes a calculator for adding and subtracting an arbitrary number of power levels expressed in units of dBm and watt. A similar calculator is included for adding and subtracting voltage levels – correlated and uncorrelated. The tool further includes a converter for converting units such as dBm, dBW, dBV, watt and volt and a converter for converting linear power and voltage ratios to dB and vice versa. A VSWR converter is also included for converting reflection quantities such as VSWR, reflection coefficient, reflected power, return loss and mismatch loss.