Local wireless networks (e.g. Mobile phone Base Station, Bluetooth, Wi-Fi, etc.) not only reduces the dasiafunctional operationpsila of wires, cables, Electronics Machines, and Human body, but also generate electromagnetic interference. Since mobile telephony leads to widespread electromagnetic field exposure and relatively little knowledge exists on, especially, in terms of its long-term effects, it indicates areas for active research. The aim of this study is to investigate the electromagnetic radiation limits of the RF wave. The experimental data are obtained by dialing of the GSM Mobile and CDMA mobile and placing the receiving antenna at a distance of approximately 30 m apart from the base station of the GSM and CDMA mobile. The results are compared with the FCC limit and found to cross the FCC limits in some cases.