802.11n Radio Frequency

Under 802.11n radio (2.4GHz), it use 20MHz and the recommended overlapped channel is 1, 6 ,11.

Does it also apply for 802.11n (5GHz) 40MHz ?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Muhammad BurhanManager I.T.Commented:
1, 6, 11 are for 802.11n 2.4ghz.

5 GHz also have overlapping channels
please consider
Craig BeckCommented:
Standard 20MHz-wide 5GHz channels don't overlap.  They are 5MHz-wide by default with 15MHz of spacing.

Technically 40MHz-wide channels don't overlap either, but if you set different primary and secondary channel schemes they could overlap across different APs.
AXISHKAuthor Commented:
Want to understand more for 5GHz, what channels are available ? Which channel doesn't overlapped (and hence  I should consider them first)

Tks again ?
Discover the Answer to Productive IT

Discover app within WatchGuard's Wi-Fi Cloud helps you optimize W-Fi user experience with the most complete set of visibility, troubleshooting, and network health features. Quickly pinpointing network problems will lead to more happy users and most importantly, productive IT.

Craig BeckCommented:
Generally 5GHz gives you 36 to 48.  That's 36, 40, 44 and 48.  They're the UNII-1 band.  They're for use indoors only.  However, there are different regulatory domains which allow the use of sub-channels and/or different channels.

None of the UNII-1 channels overlap if used in the major territories (North America, Europe or Japan).  Japan is a bit of a special case in that you can use 10MHz channel-widths on some channels (not UNII bands though).

You also have bands UNII-2, UNII-2e and UNII-3.

UNII-2 allows for channels 52-64 (52, 56, 60, 64).

UNII-2e allows for some 'extended' channels from within the UNII-2 band for use in some regulatory domains.  Some channels can be used in Europe, for example, which can't be used in North America.

UNII-3 allows for channels to be used externally for light-licensed point-to-point links but also allows for indoor use.

There are restrictions on transmit power and channel selection too.  Some channels must be used with DFS only in order to adhere to RADAR stipulations, etc.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
AXISHKAuthor Commented:
Interesting for 5GHz. Is there any spectrum used by 5Ghz for my information ?

Craig BeckCommented:
The original question was answered.  The close request is in relation to a subsequent question which received no feedback.
AXISHKAuthor Commented:
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Network Analysis

From novice to tech pro — start learning today.