Sony Ericsson T238 User Manual page 72

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 organisations, e.g. ICNIRP (International
Commission on Non-Ionising 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.
72 Additional information
This is the Internet version of the user's guide. © Print only for private use.
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.
A separate leaflet with SAR information for this mobile
phone model is included with the material that comes
with this mobile phone. This information can also be
found, together with more information on radio frequency
exposure and SAR, on www.SonyEricsson.com/cn.