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E220 USB modem - Quick start guide |
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Governments around the world have
adopted comprehensive international
safety guidelines, developed by scientific
organizations, e.g. ICNIRP (International
Commission on Non-Ionizing Radiation
Protection) and IEEE (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 public.
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 wireless device. The SAR
value is determined at the highest certified
power level in laboratory conditions, but the
actual SAR level of the wireless device while
operating can be well below the value. This
is because the wireless device is designed to
use the minimum power required to reach
the network.
All models of Huawei’s wireless device
are designed to meet radio frequency
exposure guidelines such as European
Council Recommendation and Federal
Communications Commission Notice (United
States).
european Council recommendation:
Before
a wireless device model is available for sale
to the public, it must be tested according to
the technical standard-EN 50361 and not
exceed the limit established by the European
Council Recommendation: 1999/519/EC for
safe exposure.
The SAR limit adopted by the 1999/519/EC is
2.0 watts/kilogram (W/kg) averaged over ten
gram of tissue. The highest SAR value for this
device type when tested is 1.20 W/kg.
[EN 50361 scope states “This basic standard
applies to any electromagnetic field (EM)
transmitting devices intended to be used with
the radiating part of the equipment in close
proximity to the human ear including mobile
phones, cordless phones, etc. The frequency
range is 300 MHz to 3 GHz. Therefore, the
above text does not address primary use of
the wireless device product.]
federal Communications Commission
notice (united states):
Before a wireless
device model is available for sale to the
public, it must be tested and certified to
Quick Start Guide.indd 13 9/18/07 1:54:12 PM