Strongly recommended · for some experience
EEVblog #49 - Decibels (dB's) for Engineers - A Tutorial
Why people recommend it
Dave Jones explains decibels for engineers, including dBm, and is the standard link when someone asks why dB is used for signal-to-noise ratios and Bode plots.
In their words
If you are not familiar with decibels, here is a great video tutorial about it.
abdullah kahraman on electronics.stackexchange.com, Feb 2013. CC BY-SA.
Dave Jones has an interesting video on decibels.
Thomas O on electronics.stackexchange.com, Nov 2010. CC BY-SA.
Mandatory EEVblog video citation: Decibels for Engineers.
LorenzoDonati4Ukraine-OnStrike on electronics.stackexchange.com, Aug 2015. CC BY-SA.
