Attenuation Calculator

Calculate Attenuation (dB)



Formula

The formula to calculate Attenuation (dB) is:

\[ \text{dBv} = 20 \times \log \left(\frac{Vo}{Vin}\right) \]

Where:

What is Attenuation?

Attenuation refers to the reduction in power or signal strength as it passes through a medium or device. In electronics, an attenuator is often used to reduce the amplitude of a signal, which is measured in decibels (dB). Attenuation is essential in managing signal levels in various circuits and communication systems to prevent distortion or overload.

Example Calculation

Let's consider an example:

Using the formula to calculate Attenuation:

\[ \text{dBv} = 20 \times \log \left(\frac{2}{5}\right) \approx 20 \times (-0.39794) \approx -7.96 \, \text{dB} \]

This means that the signal has been attenuated by approximately -7.96 dB.