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Conversor dBm a Vatios

Convierte entre dBm, vatios, dBW y dBμV con referencia de 50Ω. Esencial para ingeniería RF.

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Fórmula

P(W)=10dBm/10×10−3,V=P×50P(W) = 10^{dBm/10} \times 10^{-3}, \quad V = \sqrt{P \times 50}
P — Power (W or mW)
dBm — Power in dBm (dBm)
dBW — Power in dBW (= dBm − 30) (dBW)
V — RMS voltage into 50Ω (V)

Cómo Funciona

The decibel-milliwatt (dBm) is a logarithmic power ratio referenced to 1 milliwatt, commonly used in telecommunications and RF engineering to express signal strength. Converting dBm to watts requires applying an exponential calculation that scales the logarithmic representation back to absolute power measurements. This conversion is critical for understanding signal levels, antenna performance, and power budgets in communication systems.

Ejemplo Resuelto

Problem: Convert 20 dBm to watts Solution: 1. Apply formula P(W) = 10^(dBm/10) × 10⁻³ 2. P(W) = 10^(20/10) × 10⁻³ 3. P(W) = 10^2 × 0.001 4. P(W) = 100 × 0.001 5. P(W) = 0.1 watts

Consejos Prácticos

  • ✓Always verify the reference impedance (typically 50Ω)
  • ✓Use a calculator with scientific notation support
  • ✓Double-check unit conversions and scaling factors

Errores Comunes

  • ✗Forgetting to divide dBm value by 10 before exponentiating
  • ✗Incorrectly applying the 10⁻³ scaling factor
  • ✗Confusing dBm with absolute power measurements

Preguntas Frecuentes

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