wireless phones at all. For example, the government in
the United Kingdom distributed leaflets 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 scientific evidence that any
health hazard exists.
9. What about wireless phone interference with
medical equipment?
Radiofrequency energy (RF) from wireless phones can
interact with some electronic devices.
For this reason, FDA helped develop a detailed test
method to measure electromagnetic interference
(EMI) of implanted cardiac pacemakers and
defibrillators from wireless phones.
This test method is now part of a standard sponsored
by the Association for the Advancement of Medical
instrumentation (AAMI). The final draft, a joint effort
by FDA, medical device manufacturers, and many
other groups, was completed in late 2000. This
standard will allow
manufacturers to ensure that cardiac pacemakers and
defibrillators are
safe from wireless phone EMI.
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 specifies 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. FDA
continues to monitor the use of wireless phones for
possible interactions with other medical devices.
Should harmful interference be found to occur, FDA
will conduct testing to assess the interference and
work to resolve the
problem.
TIA Safety Information
55
from experts in government, industry, and academic
organizations. CTIA-funded research is conducted
through contracts to independent investigators. The
initial research will include both laboratory studies
and studies of wireless
phone users. The CRADA will also include a broad
assessment of additional research needs in the
context of the latest research developments
around the world.
7. What steps can I take to reduce my exposure to
radiofrequency 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 radiofrequency 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 condict extended conversationsby
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 distamce. 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.
8. What about children using wireless phones?
The scientific 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
TIA Safety Information
54
TIA Safety Information
TIA Safety Information
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