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Health and Safety Information
137
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 wireless
exposures that people get from these base stations are typically
thousands of times lower than those they get from wireless
phones. Base stations are thus not the subject of the safety
questions discussed in this document.
What kinds of phones are the subject of this
update?
The term “wireless phones” refers here to hand-held wireless
phones with built-in antennas, often called “cell,” “mobile,” or
“PCS”. These types of wireless phones can expose the user to
measurable radio frequency 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 phone wiring in a house, typically operate at far lower
per levels, and thus produce RF exposures far below the FCC
safety limits.
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 energy (RF) exposures characteristic of wireless
phones have yielded conflicting results that often cannot be