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Safety
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 does not demonstrate