Samsung SCH-R890ZWAUSC - Manual (Page 150)

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Section 9: Health and Safety Information
This device is capable of operating in Wi-Fi mode in the 2.4 and
5 GHz bands. The FCC requires that devices operating within
5.15-5.25 GHz may only be used indoors, not outside, in order to
avoid interference with Mobile Satellite Services (MSS).
Therefore, do not use this device outside as a Wi-Fi hotspot or in
Wi-Fi Direct mode outside when using the 5.15-5.25 GHz band.
This section outlines the safety precautions associated with
using your phone. The terms “mobile device” or “cell phone”
are used in this section to refer to your phone. Read this
information before using your mobile device.
Exposure to Radio Frequency (RF)
Signals
The U.S. Food and Drug Administration (FDA) has published
information for consumers relating to Radio Frequency (RF)
exposure from wireless phones. The FDA publication
includes the following information:
Do cell phones pose a health hazard?
Many people are concerned that cell phone radiation will
cause cancer or other serious health hazards. The weight of
scientific evidence has not linked cell phones with any health
problems.
Cell phones emit low levels of Radio Frequency (RF) energy.
Over the past 15 years, scientists have conducted hundreds
of studies looking at the biological effects of the radio
frequency energy emitted by cell phones. While some
researchers have reported biological changes associated
with RF energy, these studies have failed to be replicated.
The majority of studies published have failed to show an
association between exposure to radio frequency from a cell
phone and health problems.
The low levels of RF cell phones emit while in use are in the
microwave frequency range. They also emit RF at
substantially reduced time intervals 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.
The biological effects of radio frequency energy should not
be confused with the effects from other types of
electromagnetic energy.