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(FCC). All phones that are sold in the United States must
comply with FCC safety guidelines that limit RF exposure.
The FCC relies on the FDA and other health agencies for
safety questions about wireless phones.
The 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 handheld
wireless phones with builtin 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 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 radiofrequency energy (RF)
exposures characteristic of wireless phones have yielded
conflicting results that often cannot be repeated in
other laboratories. A few animal studies, however, have
Safety Guidelines