Wireless LAN channels

The IEEE 802.11b/g standard for wireless LAN allocated the 2.4 GHz frequency band into 13 overlapping operating channels. Each channel corresponds to a different set of frequencies. The table below shows the center frequencies of each channel.

Channel

Center

Channel

Center

 

Frequency

 

Frequency

1

2.412 GHz

8

2.447 GHz

2

2.417 GHz

9

2.452 GHz

3

2.422 GHz

10

2.457 GHz

4

2.427 GHz

11

2.462 GHz

5

2.432 GHz

12

2.467 GHz

6

2.437 GHz

13

2.472 GHz

7

2.442 GHz

14

2.484 GHz

If several Wi-Fi devices are operating in the same vicinity, the distance between the center frequencies of channels used must be at least 25MHz to avoid interference.

The number of channels available for the wireless LAN adapter varies by country/ region. Refer to the table below to determine the number of channels available in your location.

Country/Region (Regulating Body)Available Channels

Australia (ACA)

Channels 1 to 13

Belgium (RTT&E/EMC/LVD)

Channels 1 to 13

Bulgaria (RTT&E/EMC/LVD)

Channels 1 to 13

Canada (CSA/cUL 950 3rd Edition)

Channels 1 to 11

China (MII)

Channels 1 to 11

Cyprus (RTT&E/EMC/LVD)

Channels 1 to 13

Czech Republic (RTT&E/EMC/LVD)

Channels 1 to 13

Denmark (RTT&E/EMC/LVD)

Channels 1 to 13

Finland (RTT&E/EMC/LVD)

Channels 1 to 13

France (RTT&E/EMC/LVD)

Channels 1 to 13

Germany (RTT&E/EMC/LVD)

Channels 1 to 13

Greece (RTT&E/EMC/LVD)

Channels 1 to 13

Hong Kong (OFTA)

Channels 1 to 13

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