dB Calculators Author: Rex Frobenius To use the calculator below, input a value into the field and hit the enter key. The result will appear below. You can choose different calculations from the drop down menu. PowerRatio=10dB10PowerRatio=10dB10...
Decibel (dB) Calculator Decibels are defined as ten times the log of a power ratio or twenty times the log of Voltage Ratio.dB = 20log10(V1/V2) = 10log10(P1/P2) Input Enter either Power Gain (P1/P2) or Voltage gain to calculate the Decibel (dB). Power Gain (P1/P2): OR ...
power quantity, e.g. watts) in the formula. The barchanges plus and minus, when dB is chosen. It makes the reciprocal, when factor (ratio) is chosen. The formulas for voltage and power and the level calculation To use the calculator, simply enter a value. ...
dBm is a power ratio relative to 1mW, dBu and dBV are voltage ratios, relative to 0.775V and 1V, respectively. To use this calculator enter your application data in the section provided, then enter the quantity you wish to convert in the appropriate form element. Tabbing to another field,...
Decibel (dB) definition, how to convert, calculator and dB to ratio table. Decibel (dB) definition Decibel (Symbol: dB) is a logarithmic unit that indicates ratio or gain. Decibel is used to indicate the level of acoustic waves and electronic signals. ...
This tool converts linear power and voltage ratios to dB and vice versa. VSWR Converter: This tool converts reflection quantities such as Voltage Standing Wave Ratio VSWR, reflection coefficient, reflected power, return loss and mismatch loss. ...
If the signal power at a receiver is-110 dBmand the noise power is-150 dBm, the Signal-to-Noise ratio is the difference between the two dBm values: SNR = -110-(-150) = 40 dB Another example of this is when converting fromEIRP to ERPorERP to EIRPusing the numerical value of the ...
P1/P2 represents the power ratio of the input power versus the output power. As the bel prooved to be a to large unit, so the decibel or dB, was adopted. 10 decibels make one bel thus the formula becomes : Decibels (dB) = 10 · (P2/P1) ...
dB Converter: This tool converts linear power and voltage ratios to dB and vice versa. VSWR Converter: This tool converts reflection quantities such as Voltage Standing Wave Ratio VSWR, reflection coefficient, reflected power, return loss and mismatch loss. PLEASE NOTE: Calculations based on ...
Using power we get: Level in dB:L=10× log (power ratio) 3 dB = twice the power 6 dB = four times the power 10 dB = ten times the power 20 dB = hundred times the power To use the calculator, simply enter a value. The calculator works in both directions of the↔sign. ...