Actual power measurement, not a ratio or a relative value, is Watt (W), milliwatt (mW), decibel relative to one milliwatt (dBm).
Occurs when material absorbs an RF signal. None of the signal penetrates through the material.
A wireless infrastructure device connected to a distribution system allowing wireless LAN devices to access computer network resources. Contains at least two network interfaces, 10/100/1000 BaseT/Tx Ethernet (usually) and RF (wireless).
An increase in signal strength from devices such as amplifiers. Devices that provide active gain require an external power source.
Part of the original IEEE 802.11 standard defining power-save features for wireless LAN ...