Effective radiated power
= Effective radiated power
{wiki=Effective_radiated_power}
Effective Radiated Power (ERP) is a measure used in telecommunications, particularly in radio broadcasting, to quantify the power emitted by an antenna in a specified direction. It takes into account the power supplied to the antenna and the antenna's gain relative to a standard reference antenna, typically an isotropic radiator (which radiates equally in all directions).