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Health and safety information
Exposure to Radio
Frequency (RF) Signals
Certification Information
(SAR)
Your wireless phone 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 exposure limits are
derived from the
recommendations of two expert
organizations, the National
Counsel on Radiation Protection
and Measurement (NCRP) and
the Institute of Electrical and
Electronics Engineers (IEEE). In
both cases, 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.
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 and certified