Colubris Networks CN3000 Administrator's Manual page 34

Chapter 2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - How it works - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Chapter 2
Using only three frequencies across multiple cells (North America).
This strategy can be expanded to cover an even larger area using three channels as
follows:
Using three frequencies to cover a large area (North America).
The areas in gray indicate where two cells using the same frequency overlap.
Distance between access points
In environments where the number of wireless frequencies are limited, it can be
beneficial to adjust the receiver sensitivity of the CN3000. To make the adjustment,
open the Wi-Fi > Wireless page.
For most installations, the large setting should be used. However, if you are installing
multiple CN3000s, and the channels available to you do not provide enough separation,
then reducing the receiver sensitivity can help you reduce the amount of crosstalk
between the CN3000s.
Another benefit to using reduced settings is that it will improve roaming performance.
Client stations will switch between CN3000s more frequently.
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100m
300 feet
cell 1 cell 2
channel = 1 channel = 6
cell 1 cell 2
channel = 1 channel = 6
cell 5 cell 6
channel = 11 channel = 1
100m 100m
300 feet 300 feet
cell 3
channel = 11
cell 3
channel = 11
cell 7
channel = 6
cell 4
channel 1
cell 4
channel 1
cell 8
channel 11