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2 Guidelines for Safe and Efficient Use
Radio Frequency (RF) Exposure and SAR
Your mobile phone is a low-power radio transmitter and
receiver. When it is turned on, it emits low levels of radio
frequency energy (also known as radio waves or radio
frequency fields).
Governments around the world have adopted
comprehensive international safety guidelines, developed
by scientific organizations, e.g. ICNIRP (International
Commission on Non-Ionizing Radiation Protection) and
IEEE (The Institute of Electrical and Electronics
Engineers Inc.), through periodic and thorough
evaluation of scientific studies. These guidelines establish
permitted levels of radio wave exposure for the general
population. The levels include a safety margin designed
to assure the safety of all persons, regardless of age and
health, and to account for any variations in
measurements.
Specific Absorption Rate (SAR) is the unit of
measurement for the amount of radio frequency energy
absorbed by the body when using a mobile phone. The
SAR value is determined at the highest certified power
level in laboratory conditions, but the actual SAR level of
the mobile phone while operating can be well below this
value. This is because the mobile phone is designed to
use the minimum power required to reach the network.
Therefore, the closer you are to a base station, the more
likely it is that the actual SAR level will decrease.
Variations in SAR below the radio frequency exposure
guidelines do not mean that there are variations in safety.
While there may be differences in SAR levels among
mobile phones, all Sony Ericsson mobile phone models
are designed to meet radio frequency exposure
guidelines.
Accessories can significantly affect a mobile phone’s
compliance with the radio frequency exposure guidelines.
For example, the Federal Communication Commission in
the U.S. requires that some manufacturers’ accessories
shall be tested, and Sony Ericsson has done so with
respect to its products. To avoid causing loss of
performance or radio frequency exposure levels above
the permissible limits it is recommended that you only
use Sony Ericsson or Ericsson original accessories
intended for use with the mobile phone. If you wear the
mobile phone on your body while it is transmitting, and
you do not use a Sony Ericsson or Ericsson original body
worn accessory, please ensure that the mobile phone is
positioned a minimum of 1.5 cm from your body and that
you are not using an accessory that contains any metal.