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Health and Safety Information 106
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 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.
Before a new model phone is available
for sale to the public, it must be tested
u320.book Page 106 Friday, April 9, 2010 4:44 PM