42 NEXUS 4 QUICK START GUIDE
NEXUS 4 QUICK START GUIDE 43
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 scientic 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.
10. What about children using wireless phones?
The scientic evidence does not show a danger to users of
wireless phones, including children and teenagers. If you want to
take steps to lower exposure to radiofrequency energy (RF), the
measures described above would apply to children and teenagers
using wireless phones. Reducing the time of wireless phone use
and increasing the distance between the user and the RF source
will reduce RF exposure. Some groups sponsored by other national
governments have advised that children be discouraged from using
wireless phones at all. For example, the government in the United
Kingdom distributed leaets containing such a recommendation
in December 2000. They noted that no evidence exists that using
a wireless phone causes brain tumors or other ill effects. Their
recommendation to limit wireless phone use by children was
strictly precautionary; it was not based on scientic evidence that
any health hazard exists.
11. What about wireless phone interference with medical
equipment?
Radiofrequency energy (RF) from wireless phones can interact with
some electronic devices. For this reason, the FDA helped develop
a detailed test method to measure electromagnetic interference
(EMI) of implanted cardiac pacemakers and debrillators from
wireless telephones. This test method is now part of a standard
sponsored by the Association for the Advancement of Medical
instrumentation (AAMI). The nal draft, a joint effort by the FDA,
medical device manufacturers, and many other groups, was
completed in late 2000. This standard will allow manufacturers
to ensure that cardiac pacemakers and debrillators are safe
from wireless phone EMI. The FDA has tested hearing aids for
interference from handheld wireless phones and helped develop
a voluntary standard sponsored by the Institute of Electrical
and Electronic Engineers (IEEE). This standard species test
methods and performance requirements for hearing aids and
wireless phones so that no interference occurs when a person
uses a ‘compatible’ phone and a ‘compatible’ hearing aid at the
same time. This standard was approved by the IEEE in 2000.
The FDA continues to monitor the use of wireless phones for
possible interactions with other medical devices. Should harmful
interference be found to occur, the FDA will conduct testing to
assess the interference and work to resolve the problem.
To Next Page
Loading...
