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can expose the user to measurable Radio
Frequency (RF) energy because of the short
distance between the phone and the user’s
head.
These RF exposures are limited by FCC
safety guidelines that were developed with
the advice of the 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 Radio Frequency (RF) energy exposures
characteristic of wireless phones have yielded
conflicting results that often cannot be
repeated in other laboratories. A few animal
studies, however, have suggested that low
levels of RF could accelerate the development
of cancer in laboratory animals. However,
many of the studies that showed increased
tumor development used animals that had
been genetically engineered or treated with
cancercausing chemicals so as to be pre-
disposed to develop cancer in the absence
of RF exposure. Other studies exposed
the animals to RF for up to 22 hours per
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