Apr 9, 2011 #1 I iVenki Member level 3 Joined Apr 2, 2011 Messages 60 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,771 When do you use 20log() and when do you use 10 log() while converting something into decibels? Thanks in advance.
When do you use 20log() and when do you use 10 log() while converting something into decibels? Thanks in advance.
Apr 9, 2011 #2 keith1200rs Super Moderator Staff member Joined Oct 9, 2009 Messages 10,865 Helped 2,065 Reputation 4,130 Reaction score 1,597 Trophy points 1,403 Location Yorkshire, UK Activity points 57,270 Use 10 when dealing with power ratios, 20 when dealing with voltage. The answer is always a power ratio. So, a power ratio of 10x results in 10dB, a voltage ratio of 10x results in 20dB. Keith
Use 10 when dealing with power ratios, 20 when dealing with voltage. The answer is always a power ratio. So, a power ratio of 10x results in 10dB, a voltage ratio of 10x results in 20dB. Keith