NETGEAR MA101 - Manual (Page 45)

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The radio frequency channels used are listed in Table 3-1 :
Note: The available channels supported by the wireless products in various
countries are different.
The preferred channel separation between the channels in neighboring wireless
networks is 25 MHz (5 channels). This means that you can apply up to three
different channels within your wireless network. There are only 11 usable wireless
channels in the United States. It is recommended that you start using channel 1
and grow to use channel 6, and 11 when necessary, as these three channels do not
overlap.
Table 3-1. 802.11 Radio Frequency Channels
Channel Center Frequency Frequency Spread
1 2412 MHz 2399.5 MHz - 2424.5 MHz
2 2417 MHz 2404.5 MHz - 2429.5 MHz
3 2422 MHz 2409.5 MHz - 2434.5 MHz
4 2427 MHz 2414.5 MHz - 2439.5 MHz
5 2432 MHz 2419.5 MHz - 2444.5 MHz
6 2437 MHz 2424.5 MHz - 2449.5 MHz
7 2442 MHz 2429.5 MHz - 2454.5 MHz
8 2447 MHz 2434.5 MHz - 2459.5 MHz
9 2452 MHz 2439.5 MHz - 2464.5 MHz
10 2457 MHz 2444.5 MHz - 2469.5 MHz
11 2462 MHz 2449.5 MHz - 2474.5 MHz
12 2467 MHz 2454.5 MHz - 2479.5 MHz
13 2472 MHz 2459.5 MHz - 2484.5 MHz