all people regardless their age and health condition. Such
guidelines use a unit of measurement called Specific Absorption
Rate (SAR) – actual absorption.
As recommended by ICNIRP, the border value of SAR for portable
equipment is 2,0 watts per kilogram (W/kg). SAR value is
determined at the maximum transmit power; the actual SAR value
while the product is working is usually lower than the indicated
level. Such discrepancies result from automatic changes in device
power necessary to ensure that the device operates at a minimum
power level required to be connected with network.
Although SAR values might vary for different phone models or
even for different positions of the same model, they are all
compliant with regulations pertaining to safe level of radiation.
According to WHO current research, there is no need to apply any
special restrictions in using portable devices. According to WHO,
in order to reduce radiation, a length of conversation should be
reduced, or headset or speakerphone should be used, or the
phone should not be held in proximity to head or body.
The highest value of SAR taken in tests
SAR – device next to head
0.195 W/Kg (GSM900)
0.259 W/Kg (GSM1800)
SAR – device next to body
0.867W /Kg (GSM900)
0.885 W/Kg (GSM1800)
SAR values might also vary due to different reporting and testing
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