Frequencies, Amplitudes, Log Scales, dB and dBm - ECE Topics #7

In this episode, we cover a wide range of topics including how and why logarithmic scales are used in frequency response graphs, and related measures of dB and dBm. We use all of these to deal with orders of magnitudes found in the physical world. While processes and the scale of values in the world is often exponential in nature, we use logs to deal with it for reasons explained. Examples in the audio and radio/microwave fields are presented together with some history and theory.