1. An electromagnetic radio interference measurement device that measures an electromagnetic near-field emitted from a measurement object and evaluates electromagnetic interference, the device comprising: mask setting unit that converts a predetermined communication performance value permitted in a desired communication system or a modulation method that is arbitrarily designated into an amplitude probability distribution mask and setting a converted amplitude probability distribution mask as a permissible level; acquisition unit that acquires time-series measurement data of electromagnetic radio interference emitted from the measurement object in connection with a measurement position coordinate; amplitude probability distribution calculation unit that calculates amplitude probability distribution of the electromagnetic radio interference for each measurement position coordinate based on the time-series measurement data; determination unit that determines a magnitude relation between the amplitude probability distribution mask and the amplitude probability distribution for each measurement position coordinate and outputting as a determination result; mapping process unit that acquires a mapping result in which the determination result is reflected in a space corresponding to the measurement object, and output unit that outputs the mapping result.