Cisco Aironet 1600 Deployment Manual page 45

Figure 56 Beamforming, Constructive Interference, and Destructive Interference
Figure 57 provides a visual comparison of ClientLink 1.0, using one spatial stream, and ClientLink 2.0,
using three spatial streams. Unlike the AP 3500, the AP 3600 provides multiple spatial streams using
four transceivers for even greater performance. The AP 3600 can beamform to all 802.11a/g and 802.11n
one, two, and three spatial stream clients. The signal is x3 as each stream is beamformed.
Figure 57 Example of ClientLink Directing the Signal to a Client
Cisco Aironet 1600/2600/3600 Series Access Point Deployment Guide
802.11n, Spatial Streams, and Beamforming
45