Acer Aspire M3-581TG - Manual (Page 109)

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The FCC RF safety requirement
The radiated output power of the wireless LAN Mini PCI Card and Bluetooth card is far
below the FCC radio frequency exposure limits. Nevertheless, the computer shall be used
in such a manner that the potential for human contact during normal operation is
minimized as follows:
1. Users are requested to follow the RF safety instructions on wireless option devices
that are included in the user's manual of each RF option device.
Caution: To comply with FCC RF exposure
compliance requirements, a separation
distance of at least 20 cm (8 inches) must
be maintained between the antenna for the
integrated wireless LAN Mini PCI Card
built in to the screen section and all
persons.
Note: The wireless Mini PCI adapter
implements a transmission diversity function.
The function does not emit radio frequencies
simultaneously from both antennas. One of
the antennas is selected automatically or
manually (by users) to ensure good quality radiocommunication.
1. This device is restricted to indoor use due to its operation in the 5.15 to 5.25 GHz
frequency range. FCC requires this product to be used indoors for the frequency
range 5.15 to 5.25 GHz to reduce the potential for harmful interference to co-channel
Mobile Satellite systems.
2. High power radar is allocated as the primary user of the 5.25 to 5.35 GHz and 5.65 to
5.85 GHz bands. These radar stations can cause interference with and/or damage
this device.