Link Budget & Propagation
ERP Calculator
Calculate effective radiated power for a broadcast transmitter from its output power, antenna gain and system losses.
Result
Enter the inputs above and select Calculate.
Formula: ERP(dBk) = 10 · log₁₀(TPO in kW) + G(dBd) − L
Broadcast practice quotes gain in dBd, referenced to a half-wave dipole; a dBi figure is 2.15 dB higher.