User's Manual

Chapter 7 Safety and Warranty 111
Council on Radiation Protection and Measurement.
The exposure limit takes into consideration the
body’s ability to remove heat from the tissues that
absorb energy from the wireless phone and is set
well below levels known to have effects.
Manufacturers of wireless phones must report the RF
exposure level for each model of phone to the FCC.
The FCC website (http://www.fcc.gov/oet/rfsafety)
gives directions for locating the FCC identification
number on your phone so you can find your phone’s
RF exposure level in the online listing.
8. What has FDA done to measure the
radiofrequency energy coming from wireless
phones ?
The Institute of Electrical and Electronic Engineers
(IEEE) is developing a technical standard for
measuring the radiofrequency energy (RF) exposure
from wireless phones and other wireless handsets
with the participation and leadership of FDA scientists
and engineers. The standard, “Recommended
Practice for Determining the Spatial-Peak Specific
Absorption Rate (SAR) in the Human Body Due to
Wireless Communications Devices: Experimental
Techniques,” sets forth the first consistent test
methodology for measuring the rate at which RF is
deposited in the heads of wireless phone users. The
test method uses a tissue-simulating model of the
human head. Standardized SAR test methodology is
expected to greatly improve the consistency of
measurements made at different laboratories on the
same phone. SAR is the measurement of the
amount of energy absorbed in tissue, either by the
whole body or a small part of the body. It is measured
in watts/kg (or milliwatts/g) of matter. This
measurement is used to determine whether a
wireless phone complies with safety guidelines.
9. What steps can I take to reduce my exposure
to radiofrequency energy from my wireless
phone?
If there is a risk from these products—and at this
point we do not know that there is—it is probably very
small. But if you are concerned about avoiding even
potential risks, you can take a few simple steps to
minimize your exposure to radiofrequency energy
(RF). Since time is a key factor in how much
exposure a person receives, reducing the amount of
time spent using a wireless phone will reduce RF
exposure.