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Author Topic: What is secondary channel?  (Read 5092 times)

french_guy

  • Level 2 Member
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  • Posts: 25
What is secondary channel?
« on: August 13, 2011, 06:08:06 AM »
Hello
I have 3 DIR 655: 1 is my main router, and the 2 others are configured as access points
Works fine (I guess)
I've selected channel 2 for all of them because channel 6 is crowded in my area
But with InSSider, I see that my main router is still covering channel 2 to 6, while my 2 access points are on channel 2
When i look in the status of my main router, it shows channel 2 and channel 6 as a secondary channel
What is it exactly?
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alphanumeric

  • Level 3 Member
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  • Posts: 156
Re: What is secondary channel?
« Reply #1 on: August 13, 2011, 06:40:11 AM »
To get the 40MHz bandwidth for 300Mbps wireless N it uses two channels. The channels overlap so it doesn't use two adjacent channels like 2 and 3, instead it spaces them out.
http://en.wikipedia.org/wiki/IEEE_802.11
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french_guy

  • Level 2 Member
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  • Posts: 25
Re: What is secondary channel?
« Reply #2 on: August 13, 2011, 03:23:55 PM »
OK, but why a difference between my main router and my 2 access points?
They are all DIR 655 with the same settings for wireless.....!!
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alphanumeric

  • Level 3 Member
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  • Posts: 156
Re: What is secondary channel?
« Reply #3 on: August 13, 2011, 03:29:08 PM »
I don't know?
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