Belkin Wireless USB Hub F5U303 - Manual (Page 14)

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Operation
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Proper Orientation of Antennas
By design, Ultra-Wideband technology (UWB) radios
transmit at very low power levels. To achieve peak
performance, it is important to properly orient the antennas
on the Hub and your laptop.
As a general rule, the antennas should be positioned in
a vertical orientation relative to the horizontal plane. As
the antenna is integrated behind the laptop screen, we
recommend maintaining the screen vertical for optimal
wireless communication. Please see the illustration above
for an explanation. We also recommend that you place the
antennas in a direct line-of-sight orientation.