Testvector.com

An intensity I or power P can be expressed in decibels with the standard equation. where I0 and P0 are a specified reference intensity and power. Examples. As examples, if PdB is 10 dB greater than PdB0, then P is ten times P0. If PdB is 3 dB greater, the power ratio is very close . to a factor of two (). ................
................