Calculadora de Potência RF em dBm — Formula
## RF Power in dBm
### Formulas
**dBm = 10 x log10(P_mW)**
**V_rms = sqrt(P x Z)**
dBm is decibels relative to 1 milliwatt. Common values: 0 dBm = 1 mW, 10 dBm = 10 mW, 20 dBm = 100 mW, 30 dBm = 1 W.
### Formulas
**dBm = 10 x log10(P_mW)**
**V_rms = sqrt(P x Z)**
dBm is decibels relative to 1 milliwatt. Common values: 0 dBm = 1 mW, 10 dBm = 10 mW, 20 dBm = 100 mW, 30 dBm = 1 W.
Exemplo Resolvido
100 mW transmitter into 50 ohm system.
- dBm = 10 x log10(100) = 20 dBm
- Power = 100 / 1000 = 0.1 W
- V_rms = sqrt(0.1 x 50) x 1000 = 2236 mV