PCD CDM2030 Manual Del Usuario página 26

7 Safety and Warranty
Environmental Protection Agency
Federal Communications Commission
Occupational Safety and Health Administration
National Telecommunications and Information Administration
The National Institutes of Health participates in some inter-agency working group activities, as
well. FDA shares regulatory responsibilities for wireless phones with the Federal Communications
Commission (FCC). All phones that are sold in the United States must comply with FCC safety
guidelines that limit RF exposure. FCC relies on FDA and other health agencies for safety
questions about wireless phones. FCC also regulates the base stations that the wireless phone
networks rely upon. While these base stations operate at higher power than do the wireless phones
themselves, the RF exposures that people get from these base stations are typically thousands of
times lower than those they can get from wireless phones. Base stations are thus not the subject
of the safety questions discussed in this document.
3. What kinds of phones are the subject of this update?
The term "wireless phone" refers here to hand-held wireless phones with built-in antennas, often
called "cell,""mobile," or "PCS" phones. These types of wireless phones can expose the user to
measurable radiofrequency energy (RF) because of the short distance between the phone and the
user's head. These RF exposures are limited by Federal Communications Commission safety
guidelines that were developed with the advice of FDA and other federal health and safety
agencies. When the phone is located at greater distances from the user, the exposure to RF is
drastically lower because a person's RF exposure decreases rapidly with increasing distance
from the source. The so-called "cordless phones," which have a base unit connected to the
telephone wiring in a house, typically operate at far lower power levels, and thus produce RF
exposures far below the FCC safety limits.
4. What are the results of the research done already?
The research done thus far has produced conflicting results, and many studies have suffered from
flaws in their research methods. Animal experiments investigating the effects of radiofrequency
energy (RF) exposures characteristic of wireless phones have yielded conflicting results that
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