Cisco Aironet 2 dBi Diversity Omnidirectional Ceiling Mount Antenna AIR-ANT5959 - Manual (Page 2)

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Cisco Aironet 2 dBi Diversity Omnidirectional Ceiling Mount Antenna (AIR-ANT5959)
78-13213-03
System Requirements
System Requirements
A 2.4-GHz Cisco device that utilizes a RP-TNC connector.
Installation Notes
Because antennas transmit and receive radio signals, they are susceptible to RF obstructions and
common sources of interference that can reduce throughput and range of the device to which they are
connected. Follow these guidelines to ensure the best possible performance:
• Mount the antenna to utilize its propagation characteristics. A way to do this is to orient the antenna
horizontally as high as possible at or near the center of its coverage area.
Note The antenna must be mounted horizontally in order to maximize its omnidirectional propagation
characteristics. Mounting it vertically may noticeably decrease the antenna’s range and overall
performance.
• Keep the antenna away from metal obstructions such as heating and air-conditioning ducts, large
ceiling trusses, building superstructures, and major power cabling runs. If necessary, use a rigid
conduit to lower the antenna away from these obstructions.
• The density of the materials used in a building’s construction determines the number of walls the
signal must pass through and still maintain adequate coverage. Consider the following before
choosing the location to install your antenna:
– Paper and vinyl walls have very little affect on signal penetration.
– Solid and pre-cast concrete walls limit signal penetration to one or two walls without degrading
coverage.
E-Plane Pattern H-Plane Pattern
74649
0
180
45
135
90 270
225
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0
180
45
135
90 270
225
315