[Elecraft] OT: math question

[K6TFZ at aol.com]

In a message dated 3/30/2005 10:02:44 AM Pacific Standard Time,  
Able2fly at aol.com 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