134 Health & Safety
Health & Safety
Specic Absorption Rate (SAR) Certication Information
Your wireless device is a radio transmitter and receiver. It is designed and manufactured not to exceed the exposure limits for
Radio Frequency (RF) energy set by the Federal Communications Commission (FCC) of the U.S. Government.
These FCC RF exposure limits are derived from the recommendations of two expert organizations: the National Council on
Radiation Protection and Measurement (NCRP) and the Institute of Electrical and Electronics Engineers (IEEE). In both cases,
the recommendations were developed by scientic and engineering experts drawn from industry, government, and academia
after extensive reviews of the scientic literature related to the biological effects of RF energy.
The RF exposure limit set by the FCC for wireless mobile phones employs a unit of measurement known as the Specic
Absorption Rate (SAR). The SAR is a measure of the rate of absorption of RF energy by the human body expressed in units of
watts per kilogram (W/kg). The FCC requires wireless phones to comply with a safety limit of 1.6 watts per kilogram (1.6 W/kg).
The FCC SAR limit incorporates a substantial margin of safety to give additional protection to the public and to account for any
variations in measurements.
SAR tests are conducted using standard operating positions accepted by the FCC with the phone transmitting at its highest
certied power level in all tested frequency bands. Although the SAR is determined at the highest certied power level, the
actual SAR level of the phone while operating can be well below the maximum reported value. This is because the phone is
designed to operate at multiple power levels so as to use only the power required to reach the network. In general, the closer
you are to a wireless base station antenna, the lower the power output of the device.
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