LG Spree Guia Del Usuario página 141

The National Institutes of Health participates in some interagency working
group activities, as well.
The 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. 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
built-in antennas, often called "cell" , "mobile" , or "PCS" phones. These types
of wireless phones 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
140 For Your Safety