Colubris Networks CN3000 Administrator's Manual page 33

Chapter 2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - How it works - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Chapter 2
Example
When operating in 802.11b mode, the CN3000 supports the following 14 channels in
the 2.4 Ghz band:
However, the number of channels available for use in a particular country are
determined by the regulations defined by the local governing body. For example:
Since the minimum recommended separation between overlapping channels is 25 MHz
(5 cells), the recommended maximum number of overlapping cells you can have in most
regions is three. For example:
In North America, you would create the following installation:
Reducing transmission delays by using different operating frequencies.
However, It is possible to stagger your cells to reduce overlap and increase channel
separation. Consider the following:
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Channel Frequency
1 2412
2 2417
3 2422
4 2427
5 2432
6 2437
7 2442
Region Available channels
North America 1 to 11
Japan 1 to 14
Europe 1 to 13
North America
• cell 1 on channel 1
• cell 2 on channel 6
• cell 3 on channel 11
cell 1
channel = 1 channel = 6
Channel Frequency
8 2447
9 2452
10 2457
11 2462
12 2467
13 2472
14 2477
Europe
• cell 1 on channel 1
• cell 2 on channel 7
• cell 3 on channel 13
cell 2 cell 3
channel = 11
Japan
• cell 1 on channel 1
• cell 2 on channel 7
• cell 3 on channel 14