Table of Contents
Advertisement
that "there is no scientifi c evidence that proves that wireless
phone usage can lead to cancer or a variety of other problems,
including headaches, dizziness or memory loss." This publication
is available at http://www.fcc.gov/cgb/ cellular.html or through the
FCC at (888) 225-5322 or (888) CALL-FCC.
What does "SAR" mean?
In 1996, the FCC, working with the FDA, the U.S. Environmental
Protection Agency, and other agencies, established RF exposure
safety guidelines for wireless phones in the United States. Before
a wireless phone model is available for sale to the public, it must
be tested by the manufacturer and certifi ed to the FCC that it
does not exceed limits established by the FCC. One of these limits
is expressed as a Specifi c Absorption Rate, or "SAR." SAR is a
measure of the rate of absorption of RF energy in the body. Tests
for SAR are conducted with the phone transmitting at its highest
power level in all tested frequency bands. Since 1996, the FCC has
required that the SAR of handheld wireless phones not exceed 1.6
watts per kilogram, averaged over one gram of tissue.
Although the SAR is determined at the highest power level, the
actual SAR value of a wireless phone while operating can be less
than the reported SAR value. This is because the SAR value may
vary from call to call, depending on factors such as proximity to
a cell site, the proximity of the phone to the body while in use,
and the use of hands-free devices. For more information about
SARs, see the FCC's OET Bulletins 56 and 65 at http://www.fcc.
gov/Bureaus/Engineering_Technology/Documents/bulletins or
visit the Cellular Telecom munications Industry Association website
at http://www.ctia.org/consumer_info/index.cfm/AID/10371. You
NEXUS 4 SAFETY & WARRANTY
9
Advertisement
Table of Contents
