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number on your phone so you can find your
phone's RF exposure level in the online
listing.
8. What has the FDA done to measure
the radio frequency energy coming
from wireless phones?
The Institute of Electrical and Electronic
Engineers (IEEE) is developing a technical
standard for measuring the radio frequency
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 radio frequency 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 radio frequency
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. If
you must conduct extended conversations
by wireless phone every day, you could
place more distance between your body and
the source of the RF, since the exposure
level drops off dramatically with distance.
For example, you could use a headset and
carry the wireless phone away from your
body or use a wireless phone connected to
a remote antenna. Again, the scientific data
do not demonstrate that wireless phones are
harmful. But if you are concerned about the
RF exposure from these products, you can
use measures like those described above
to reduce your RF exposure from wireless
phone use.
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