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Health and safety information
the recommendations were developed by
scientific and engineering experts drawn
from industry, government, and academia
after extensive reviews of the scientific
literature related to the biological effects of
RF energy.
42
The exposure limit set by the FCC for
wireless mobile phones employs a unit of
measurement known as the Specific
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 exposure 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
certified power level in all tested frequency
bands. Although the SAR is determined at
the highest certified power level, the actual
SAR level of the phone while operating can
be well below the maximum value. This is
because the phone is designed to operate at
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