Chapter 1
Safety First 3
for exposure to radiofrequency (RF) energy set by the Federal
Communications Commission of the U.S. Government. These
limits are part of comprehensive guidelines and establish per-
mitted levels of RF energy for the general population. The
guidelines are based on standards that were developed by
independent scientific organizations through periodic and
thorough evaluation of scientific studies. The standards
include a substantial safety margin designed to assure the
safety of all persons, regardless of age and health.
The exposure standard for wireless mobile phones employs a
unit of measurement known as the Specific Absorption Rate,
or SAR. The SAR limit set by the FCC is 1.6W/kg.* Tests for
SAR are conducted using standard operating positions speci-
fied by the FCC with the phone transmitting at its highest cer-
tified 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 phone model is available for sale to the public, it
must be tested and certified to the FCC that it does not
exceed the limit established by the government-adopted
requirement for safe exposure. The tests are performed in
positions and locations (e.g., at the ear and worn on the body)
as required by the FCC for each model. The highest SAR
value for this model phone when tested for use at the ear is
1.49W/kg and when worn on the body, as described in this
user guide, is .93W/kg. (Body-worn measurements differ
among phone models, depending upon available accessories
and FCC requirements). While there may be differences
between the SAR levels of various phones and at various
positions, they all meet the government requirement for safe
exposure.
The FCC has granted an Equipment Authorization for this
model phone with all reported SAR levels evaluated as in
compliance with the FCC RF emission guidelines. SAR
information on this model phone is on file with the FCC and
can be found under the Display Grant section of
http://www.fcc.gov/oet/fccid after searching on FCC ID
NWJ10A002A.
Additional information on Specific Absorption Rates (SAR)
can be found on the Cellular Telecommunications Industry
Association (CTIA) web-site at http://www.wow-com.com.
* In the United States and Canada, the SAR limit for mob ile phones used by
the public is 1.6 watts/kg (W/kg) averaged over one gram of tissue. The
standard incorporates a substantial margin of safety to give add itional
protection for the public and to account for any variations i n measurements.