Samsung SGH-J200 User Manual page 50

Appendix C: Consumer Update
on Wireless Phones
U.S. Food and Drug Administration
1. 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 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 telephone wiring in a
house, typically operate at far lower power
levels, and thus produce RF exposures well
within the FCC's compliance limits.
2. Do wireless phones pose a health
hazard?
The available scientific evidence does not
show that any health problems are
associated with using wireless phones. There
is no proof, however, that wireless phones
are absolutely safe. Wireless phones emit
low levels of radio frequency energy (RF) in
the microwave range while being used. They
also emit very low levels of RF when in the
stand-by mode. Whereas high levels of RF
can produce health effects (by heating
tissue), exposure to low level RF that does
not produce heating effects causes no
known adverse health effects. Many studies
of low level RF exposures have not found
any biological effects. Some studies have
suggested that some biological effects may
occur, but such findings have not been
confirmed by additional research. In some
cases, other researchers have had difficulty
in reproducing those studies, or in
determining the reasons for inconsistent
results.
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