Decibel (dB) Converter
Converts linear ratios to decibels and back, using the 10·log₁₀ rule for power quantities and 20·log₁₀ for amplitude quantities, and converts absolute power between dBm and watts.
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Results
Notes
- Doubling power is +3 dB; doubling voltage is +6 dB, because power scales with voltage squared.
- dBm is absolute: 0 dBm = 1 mW, 30 dBm = 1 W.
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