Compaq Presario R3000 - Notebook PC Hardware Manual page 86

Modem and Network Connections
A wireless network provides all the functions of a typical "wired"
network, but also provides for "roaming." To roam, the notebook
must be connected to the network by radio rather than through
cables. This connection allows you to move from place to place
within the network—from your office to a conference room, for
example—and remain on the network the entire time.
Identifying the wireless antenna
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WARNING: Exposure to Radio Frequency Radiation
The radiated output power of this device is below the FCC radio
frequency exposure limits. Nevertheless, the device should be used in
such a manner that the potential for human contact during normal
operation is minimized. To avoid the possibility of exceeding the FCC
radio frequency exposure limits, human proximity to the antennae
should not be less than 20 cm (8 inches) during normal operation,
including when the notebook display is closed.
Hardware Guide 7–9