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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.
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
u320.book Page 111 Friday, April 9, 2010 4:44 PM