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Episode 6 · Decibels · Series 02: RF principles

What is a decibel, and why do decibels add?

A frame from the draft of episode 6, DecibelsComing soon
Release
Length
2:48
Subject
Measurement

What it covers

What a decibel is, why decibels add, what dBm and S9 mean, and why the formula for voltage has a 20. With a real voice at 0, minus 10 and minus 20 decibels.

Chapters

  1. 0:00Why not plain numbers?
  2. 0:17A step of 10 times
  3. 0:45Gains add
  4. 1:00From a ratio to an amount
  5. 1:32Why 20 for voltage?
  6. 1:46What do 10 decibels sound like?
  7. 2:30Two numbers to remember

Frames from the draft

Decibels: Why not plain numbers?
01 Why not plain numbers?
Decibels: A step of 10 times
02 A step of 10 times
Decibels: Gains add
03 Gains add
Decibels: From a ratio to an amount
04 From a ratio to an amount
Decibels: Why 20 for voltage?
05 Why 20 for voltage?
Decibels: What do 10 decibels sound like?
06 What do 10 decibels sound like?
Decibels: Two numbers to remember
07 Two numbers to remember