Sony T39 Benutzerhandbuch

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Safe and Efficient Use
125
Use only an antenna that has been specifically designed for your 
mobile phone. Use of unauthorized antennas, modifications, or 
attachments could damage the mobile phone and may violate the 
appropriate regulations, causing loss of performance and radio 
frequency (RF) energy above the recommended limits.
Efficient Use
For optimum performance with minimum power consumption please:
Hold the mobile phone as you would any other telephone. While 
speaking directly into the mouthpiece, angle the antenna in a 
direction up and over your shoulder. If the antenna is extendable/
retractable, it should be extended during a call.
Do not hold the antenna when the mobile phone is in use. Holding 
the antenna affects call quality, may cause the mobile phone to 
operate at a higher power level than needed and may shorten talk 
and standby times. If your mobile phone is equipped with an 
infrared port, never direct the infrared ray at anyone’s eye and 
make sure that it does not disturb any other infrared units.
Radio Frequency Energy
Your mobile phone is a low-power radio transmitter and receiver. 
When it is turned on, it intermittently receives and transmits radio 
frequency (RF) energy (radio waves). The system that handles the 
call controls the power level at which the phone transmits.
Exposure to Radio Frequency Energy
All Ericsson mobile phone models are designed to not exceed the limits 
for exposure to RF energy set by national authorities and international 
health agencies.* These limits are part of comprehensive guidelines 
and establish permitted levels of radio wave exposure for the general 
population. The guidelines were developed by independent scientific 
organizations such as ICNIRP (International Commission on Non-
Ionizing Radiation Protection) through periodic and thorough 
evaluation of scientific studies. The limits include a substantial safety 
margin designed to assure the safety of all persons, regardless of age 
and health, and to account for any variations in measurements.
*Examples of radio frequency exposure guidelines and standards that 
Ericsson mobile phone models are designed to conform to:
ICNIRP, “Guidelines for limiting exposure to time-varying 
electric, magnetic, and electromagnetic fields (up to 300 GHz)”, 
International Commission on Non-Ionizing Radiation Protection 
(ICNIRP), Health Physics, vol.74, pp.494-522, April 1998.