Novatel Merlin XU870 - Manual (Page 50)

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This product has been evaluated for SAR and meets the FCC
Guidelines for exposure to radio waves.
FCC Equipment Authorization ID: NBZNRM XU870
Your wireless modem is a radio transmitter and receiver. It is designed
and manufactured not to exceed the exposure limits for radio
frequency (RF) energy set by the Federal Communications Commission
(FCC) of the U.S. Government.
These limits are part of comprehensive guidelines and establish
permitted levels of RF energy for the general population. The
guidelines are based on standards that were developed by
independent scientific organizations through periodic and thorough
evaluation of scientific studies. The standards include a substantial
safety margin designed to assure the safety of all persons, regardless
of age and health.
The exposure standard for wireless devices including mobile phones
and wireless modems uses a unit of measurement known as the
Specific Absorption Rate, or SAR. Tests for SAR are conducted using
standard operating positions reviewed by the FCC with the device
under test transmitting at its highest certified power level in all
frequency bands. Although the SAR is determined at the highest
certified power level, the actual SAR level of the phone or modem
while operating can be well below the maximum value. This is
because the phone or modem 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 wireless base station
antenna, the lower the power output.