Since we are on the way to be correct and precise:
1) A decibel is not logarithm OF ratios of power.
2) A decibel is a decibel, in other words a number, independently if
ratio of power, or voltages or whatsoever unity one likes to use. A 3
dB, for example, is ten times the logaritm of the ratio of powers and
20 times the logaritm of voltages.
3) Saying "2" I meant a generical S/N that's have infinite solutions
beeing the ratio of two signals. A 2 dB expresses infact an S that's
1.6 times the noise power or 1.26 times the noise voltage (or current).
> dBs are logarithms OF ratios of power.
> Jim KH7M
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