Safety
114
Safety
the Institute of Electrical and
Electronics Engineers (IEEE). In
both cases, the recommendations
were developed by scientific and
engineering experts drawn from
industry, government, and
academia after extensive reviews of
the scientific literature related to
the biological effects of RF energy.
The exposure Limit for wireless
mobile phones employs a unit of
measurement known as the
Specific Absorption Rate, or SAR.
The SAR is a measure of the rate
of absorption of RF energy by
the human body expressed in
units of watts per kilogram
(W/kg). The FCC requires
wireless phones to comply with a
safety limit of 1.6 watts per
kilogram (1.6 W/kg). The FCC
exposure limit incorporates a
substantial margin of safety to
give additional protection to the
public and to account for any
variations in measurements.
Tests for SAR are conducted using
standard operating positions
specified by the FCC with the
phone transmitting at its highest
certified power level in all tested
frequency bands. Although SAR is
determined at the highest certified
power level, the actual SAR level of
the phone while operating can be
well below the maximum value.
Because the phone is designed to
operate at multiple power levels to
use only the power required to
reach the network, in general, the
closer you are to a wireless base
station antenna, the lower the
power output.
Before a phone model is available
for sale to the public, it must be
tested and certified to the FCC
that it does not exceed the limit
established by the government-
adopted requirement for safe
To Next Page
Loading...
