2639544 EIRP effective isotropic radiated power 5 2639543 EIRP equivalent isotropic radiated power 2 2639540 EIRP employee's in-role performance 1 2639541 EIRP enhanced ipsilateral retinofugal projection 1 2639539 EIRP equivalent isotropically radiated power 1 2639542 EIRP equivalent-isotropic-radiation-power 1