User manual
Table Of Contents
52
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 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.
11. What about wireless phone interference with medical equipment?
Radio Frequency (RF) energy from wireless phones can interact with some electronic
devices. For this reason, the FDA helped develop a detailed test method to measure Electro
Magnetic Interference (EMI) of implanted cardiac pacemakers and defibrillators from
wireless telephones. 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 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
defibrillators 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
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 simultaneously. 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.
12. Where can I find additional information?
For additional information, please refer to the following resources: FDA web page on