Πώς να υπολογίσετε το Decibelm W

Τι είναι το Decibelm W;

Converts between power ratios and decibel scale for audio, RF, and other applications. Logarithmic scale matches human perception.

Τύπος

P

P value — Variable used in the calculation

Οδηγός βήμα προς βήμα

1. 1dBm = 10 × log10(P ÷ 0.001)
2. 2dBW = 10 × log10(P)
3. 3Reverse: power (watts) = 10^(dBm ÷ 10) ÷ 1000
4. 4Every 3 dB ≈ 2× power
5. 5Every 10 dB ≈ 10× power

Worked Examples

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