What is a dB? - RF and Cable Basics

What is a dB? RF and Cable Basics :: Brady Volpe and Ron Hranac discuss RF and cable basics in a new series designed to help those who are interested in understanding RF and Cable TV technology a little better. In this first episode we cover what is a decibel (dB). This is a fundamental unit of measure that every person working in the cable industry should understand. To learn more, watch this episode. 0:00 Intro 4:30 The Decibel Primer Beginning 5:13 What is a Logarithm 9:15 Question on Signals and Velocity of Propogation 12:30 The Decibel 18:16 The Decibel Expresses Power in Terms of Voltage 21:50 The Correct Usage of Decibel 26:45 Log Base 10 vs Log Base 2 29:57 Wrap Up Links / Upcoming events: DOCSIS Gear: