FED-STD-800
DECIBEL (dB) A measure of the power ratio of two signals. In system use, a measure of the voltage ratio of two signals, provided they are measured across a common impedance, dB is 20 times log10 of voltage or current ratios and 10 x log10 of power ratio. ................
................
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.