Huawei C6100 User Manual page 50

of Electrical and Electronics Engineers Inc. (IEEE), 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 device. The
SAR value is determined at the highest certified power level in laboratory
conditions, but the actual SAR level of the device while being operated can
be well below the value. This is because the device is designed to use the
minimum power required to reach the network.
Before a device model is available for sale to the public, it must be tested
and certified by the Federal Communications Commission (FCC), ensuring
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 device has been tested and
meets FCC RF exposure guidelines when the handset is positioned a
minimum of 15 mm from the body with an accessory that contains no
metal part. Use of other accessories may not ensure compliance with FCC
RF exposure guidelines.
The SAR limit adopted by USA and Canada is 1.6 watts/kilogram (W/kg)
averaged over one gram of tissue. The highest SAR value reported to the
FCC and IC for this device type when tested for use at the ear is 0.228
W/kg, and when properly worn on the body is 0.537 W/kg.
The SAR limit adopted by the CNIRP is 2.0 W/kg over one gram of tissue.
The value guarantees a safe distance to protect device users and the
difference caused by measurement errors. Under different test requirements
and frequency, the value varies.
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