ENG-15
thorough evaluation of scientific studies. The guidelines include
a substantial safety margin designed to assure the safety of all
persons, regardless of age and health.
The exposure standard for mobile devices employs a unit of
measurement known as the Specific Absorption Rate, or SAR.
Tests for SAR are conducted using standard operating positions
with the device transmitting at its highest certified well below the
maximum value. Although the SAR is determined at the highest
certified power level, the actual SAR of the device while
operating can be well below the maximum value.This is because
the device is designed to operate at multiple power levels so as
to use only the power required to reach the network. In general,
the closer you are to a base station, the lower the power output
of the device.
SAR values may vary depending on national reporting and
testing requirements and the network band. Use of device
accessories and enhancements may result in different SAR
values.
The SAR limit for mobile devices used by the public is 2.0 W/kg
averaged over 10 grams of body tissue. The guidelines
incorporate a substantial margin of safety to give additional
protection for the public and to account for any variations in
measurements.
