This calculator converts the ratio of output power to input power of an RF system into decibels (dB). It helps to evaluate gains or losses in an amplifier, attenuator or transmission chain.
Formula
dB ratio = 10 × log10(P out / P in )
Explanation of the formula
The ratio in decibels (Ratio dB ) expresses the power difference between the output and the input of a device. If the result is positive, the system amplifies the signal; if it is negative, it attenuates the signal. This conversion is valid for powers expressed in watts or milliwatts.
Uses of the calculator
- Evaluate the gain or loss of an RF amplifier.
- Check the performance of an attenuator or filter.
- Analyze transmission chains in radio and microwave systems.
- Useful tool for RF engineers, technicians and electronics students.