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RF Power Ratio Conversion Calculator

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RF Power Ratio Conversion Calculator
Please enter valid values greater than 0.
RESULTS
POWER RATIO
dB
LINEAR RATIO
×

RF Power Ratio Diagram

RFIN PAM POUT PIN Ratio RFOUT Antenna Rload

Formulas

Power Ratio (dB) = 10 × log10(Power Output / Power Input)
If power is in mW: W = mW × 0.001
Linear Ratio = Power Output / Power Input

Diagrams & Theory

RF power ratio conversion compares output power against input power and expresses the ratio in decibels.

A positive dB value means output power is higher than input power. A negative dB value means output power is lower than input power.

Example

Input Example

Power Output: 10 W
Power Input: 1 W

Output

Power Ratio = 10 × log10(10 / 1) = 10 dB.

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About this tool

RF Power Ratio Conversion Calculator is a free online calculator tool. Use it to get instant, accurate results for your electronics calculations.