Decibelm W ಅನ್ನು ಹೇಗೆ ಲೆಕ್ಕ ಹಾಕುವುದು
Decibelm W ಎಂದರೇನು?
Converts between power ratios and decibel scale for audio, RF, and other applications. Logarithmic scale matches human perception.
ಸೂತ್ರ
dBm = 10 × log10(P ÷ 0.001)
- P
- P value — Variable used in the calculation
ಹಂತ-ಹಂತದ ಮಾರ್ಗದರ್ಶಿ
- 1dBm = 10 × log10(P ÷ 0.001)
- 2dBW = 10 × log10(P)
- 3Reverse: power (watts) = 10^(dBm ÷ 10) ÷ 1000
- 4Every 3 dB ≈ 2× power
- 5Every 10 dB ≈ 10× power
Worked Examples
ಇನ್ಪುಟ್
Power 1W
ಫಲಿತಾಂಶ
30 dBm
Common Mistakes to Avoid
- ✕Confusing dBm (power) with dBV (voltage) with dBu (relative to 0.775V)
- ✕Adding dBm values instead of multiplying power
Frequently Asked Questions
Why use decibels instead of watts?
Logarithmic scale compresses large ranges (1W to 1MW becomes 30 dBm to 60 dBm), easier comparison.
What's typical dBm for audio and RF?
Audio -20 to +4 dBu typical; WiFi transmit +17 to +30 dBm; cellular -30 to +33 dBm.
ಲೆಕ್ಕಾಚಾರ ಮಾಡಲು ಸಿದ್ಧರಿದ್ದೀರಾ? ಉಚಿತ Decibelm W ಕ್ಯಾಲ್ಕುಲೇಟರ್ ಅನ್ನು ಪ್ರಯತ್ನಿಸಿ
ನೀವೇ ಪ್ರಯತ್ನಿಸಿ →