Re: OT: math question
Posted by
K6TFZ on
Mar 30, 2005; 7:19pm
URL: http://elecraft.85.s1.nabble.com/OT-math-question-tp376370p376381.html
In a message dated 3/30/2005 10:02:44 AM Pacific Standard Time,
[hidden email] writes:
How would one calculate the amplifier gain (in dB) required to go from one
power level to another? For example from 5W to 100W.
The formula is: dB = 10 log (P2 / P1)
P2 / P1 = 100 / 5 = 20
log of 20 = 1.30103
10 times it = 13.0103
That's your answer: 13.0103 dB
Geoff, K6TFZ
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