Example An electric field strength of 10 μVis to be measured at an observation point =л/2, 500 km from a half-wave resonant dipole antenna operating in air at 50 MHz. a) What is the length of the dipole? b) Calculate the current that must be fed to the antenna b) Find the average power radiated by the antenna c) If a transmission line with ZO=75 is connected to the antenna, determine the SWR. Example An electric field strength of 10 μVis to be measured at an observation point =л/2, 500 km from a half-wave resonant dipole antenna operating in air at 50 MHz. a) What is the length of the dipole? b) Calculate the current that must be fed to the antenna b) Find the average power radiated by the antenna c) If a transmission line with ZO=75 is connected to the antenna, determine the SWR.