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Efficient use
Hold your cell phone as you would any other phone. Do not cover the top
of the phone when it is in use, as this affects call quality and may cause
the phone to operate at a higher power level than needed, thus shortening
talk and standby times.
Radio frequency (RF) exposure and Specific
Absorption Rate (SAR)
Your cell 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, for example 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 cell phone.
The SAR value is determined at the highest certified power level in laboratory
conditions, but the actual SAR level of the cell phone while it is operating
can be well below this value. This is because the cell phone is designed
to use the minimum power required to reach the network.
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 cell phones, all Sony Ericsson cell phone models
are designed to meet radio frequency exposure guidelines.
For phones sold in the US, before a phone model is available for sale to
the public, it must be tested and certified by the Federal Communications
Commission (FCC) that it does not exceed the limit established by the
government-adopted requirement for safe exposure. The tests are performed
in positions and locations (that is, at the ear and worn on the body)
as required by the FCC for each model. For body-worn operation, this
phone has been tested and meets FCC RF exposure guidelines when
the handset is positioned a minimum of 15 mm from the body without
any metal parts in the vicinity of the phone or when used with the original
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