Sony T630 User Manual
Page 87
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87
EFFICIENT USE
Hold your mobile phone as you would any other phone.
Do not cover the top of the phone when 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 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.
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.
Before a phone model is available for sale to the
public, it must be tested and certified to the 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
Sony Ericsson body worn accessory intended for this
phone. Use of other accessories may not ensure
compliance with FCC RF exposure guidelines.