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For Your Safety 133
must report the RF exposure level for each model of device to the FCC. The FCC
website (
http://www.fcc.gov/oet/rfsafety
) gives directions for locating the FCC
identification number on your device so you can find your device’s RF exposure level
in the online listing.
8. What has the FDA done to measure the Radio Frequency energy coming
from devices?
The Institute of Electrical and Electronic Engineers (IEEE) is developing a technical
standard for measuring the Radio Frequency (RF) energy exposure from devices
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
device users. The test method uses a tissue-simulating model of the human head
and body. Standardized SAR test methodology is expected to greatly improve the
consistency of measurements made at different laboratories on the same device.
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 device complies with
safety guidelines.
9. What steps can I take to reduce my exposure to Radio Frequency energy
from my device?
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 (RF) energy. Since time is a key factor in how much exposure a person
receives, reducing the amount of time spent using a device will reduce RF exposure.
If you must conduct extended conversations using a wireless device 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 device away from your body or use a wireless device
connected to a remote antenna. Again, the scientific data does not demonstrate
that devices 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 device use.
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