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doubleplay | User Guide
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 wiring in a house, typically operate
at far lower power levels, and thus produce RF
exposures far below the FCC safety limits.