EIRPdBi

EIRPdBi is a unit of measurement used in radio frequency engineering. It represents the Effective Isotropic Radiated Power (EIRP) in decibels relative to an isotropic antenna (dBi). EIRP is a measure of the power transmitted by an antenna in a specific direction, taking into account the power supplied to the antenna and the antenna's gain. An isotropic antenna is a theoretical antenna that radiates power equally in all directions. Therefore, dBi expresses the gain of a real antenna compared to this theoretical ideal.

When EIRPdBi is used, it signifies the total power radiated by a transmitter system, including the transmitter output power and all gains and losses in the system (such as cable losses and antenna gain), expressed in a logarithmic scale relative to an isotropic radiator. This unit is particularly useful for comparing the performance of different transmitting systems regardless of their antenna types. A higher EIRPdBi value indicates a more powerful signal being transmitted in a particular direction. It is commonly encountered in satellite communications, microwave links, and other wireless transmission systems where directed power is critical. Understanding EIRPdBi helps in calculating signal strength, coverage area, and potential interference levels.