This MIB is intended to be implemented on 802.11 Access Points and Wireless Bridges to provide information about the antennas connected to their 802.11 interfaces. The NMS retrieves the configured antenna parameters and uses it to calculate the recommended radio settings to be applied to the Access Points being managed to achieve optimum coverage and throughput. GLOSSARY Access Point ( AP ) An entity that contains an 802.11 medium access control ( MAC ) and physical layer ( PHY ) interface and provides access to the distribution services via the wireless medium for associated clients. Wireless Bridge An 802.11 entity that provides wireless connectivity between two wired LAN segments and is used in point- to-point or point-multipoint configurations. Repeater-AP A repeater is a 'wireless AP' that is attached to a parent AP on an 802.11 primary port. The Ethernet port is disabled in a Repeater-AP. Antenna A passive device connected to the 802.11 interface that is used for transmission and reception of the radio signals. Antennas transmit radio signals in all directions (omnidirectional) or in a particular direction(directional, high-gain). Antenna Gain The Antenna Gain is the measure of the amount of amplification done on the input radio signal by the antenna. Amplification is done by virtue of focussing the RF radiation into a tighter beam. Antenna Gain is expressed as dBi units. Attenuator An attenuator circuit allows a known source of power to be reduced by a predetermined factor usually expressed as decibels. This power reduction is achieved by the attenuator without introducing distortion. An attenuator may be used in either audio or radio signal circuits.