Lenovo IdeaPad U165 - Manual (Page 4)

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ii) FCC ID of wireless module:
On the bottom side of your Lenovo computer, you will find an indicator
label of the format “Contains Transmitter Module: FCC ID XXXX”, where
XXXX represents the FCC ID that corresponds to your preinstalled
Wireless LAN/WiMax module.
iii) Radio Frequency interference requirements:
• The devices have been tested and found to comply with the limits
for a Class B digital device pursuant to FCC Part 15 Subpart B. Refer
to “Electronic emission notices” on page 10. The models AR5B95,
BCM94313HMG2L, underwent the certification process with each
respective FCC ID number listed in “I. Factory preinstalled Wireless
LAN/WiMAX module” on page 2.
Note: The transmission diversity function is implemented for this product. For
WLAN card (Model: AR5B95, BCM94313HMG2L) using Main and
Auxiliary antennas for transmission in the IEEE 802.11 b/g transmission
mode, radio frequency energy is not emitted simultaneously from both
Main and Auxiliary antennas. One of the antennas is selected
automatically or manually (by users) to have good quality of
radiocommunication (transmission diversity function). For WLAN cards
(AR5B95, BCM94313HMG2L) in the IEEE 802.11 a/b/g, or MIMO
(Multiple In Multiple Out ) transmission mode, the radio frequency
energy is emitted from Main antenna.