Cisco Aironet 2700 Series - Examples of Poor AP Installations; Avoiding Metal and Clutter in Installations; Incorrect Patch Antenna Mounting Against Metal

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Cisco Aironet Series 2700/3700 Access Points Deployment Guide
Cisco Aironet Series 3700 Access Point
Figure 95 Example of an AP Installation Near Metal and Clutter (Try to Avoid Metal and Clutter)
Figure 96 Patch Antenna Against a Metal Fence