The cellular phone has become very popular. It worries about whether the electromagnetic wave that radiate from the cellular phone makes malfunction for the computers or other electronics devices. The necessity for examining the influence which the electromagnetic wave which radiate from the cellular phone gives the device has come out. The purpose of our measurement is to offer basic data for influence investigation. We measured a statistical parameter of electric field strength of the cellular phone frequency hand on the 2 measuring points. As a result, maximum electric field strength under the measurement was 115dB μV/m. Moreover, the rate of time for electric field strength to exceed 90dB μV/m by the observation of 24 hours was about 0.1We calculated Probability Distribution Function by modeling the measurement place. And then, we compared it with the measurement value.
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