Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 01-05-2011, 02:28 PM   #1
Senior Member
Registered: Jan 2009
Location: Austin, TX
Distribution: Mint-17.3 with Cinnamon & KDE
Posts: 1,534
Blog Entries: 3

Rep: Reputation: 103Reputation: 103
which wifi channel and what are goods reasons to pick one

I ought to understand the radio aspects of wifi better than I do.
(Reading suggestions anyone?) That said, is there a bad-good-best choice for wifi access point channel number? How does one select a channel number systematically (scientifically) rather than trial and error?

Merci d'avance,
~~~ 0;-Dan
Old 01-05-2011, 04:05 PM   #2
Registered: Apr 2007
Location: Indianapolis, Indiana
Distribution: RHEL, Fedora, AIX, HP-UX, FreeBSD, Slackware
Posts: 62

Rep: Reputation: 19
This may not be a scientific answer; albeit I simply fire up an arbitrary WiFi scanning tool and search for the channel with less noise, once I find one - it's what I use.
Old 01-05-2011, 06:29 PM   #3
Senior Member
Registered: Oct 2009
Location: Wroclaw, Poland
Distribution: Arch, Kubuntu
Posts: 1,254

Rep: Reputation: 314Reputation: 314Reputation: 314Reputation: 314
Most cheap wifi devices have better parameters in the middle of band. In 2,4 GHz this is channel 6. Recently we get simple spectrum analyzer which can help with selection of the best channel.
Old 01-05-2011, 09:36 PM   #4
LQ Newbie
Registered: Aug 2006
Posts: 14

Rep: Reputation: 0
Generally, channel 6 is a good choice. It is only when you are using more than one wireless router (an extended server set) that this becomes a major issue. If that is the case, you should use the channels 1, 6 and 11, where 6 does not overlap with other channel 6s, 11 other 11s, etc.

EDIT: I think the default is channel 6 on most APs, so if you are having noise trouble, you may try 1 or 11.

Last edited by solar_64131; 01-05-2011 at 09:42 PM.
Old 01-06-2011, 03:22 PM   #5
Senior Member
Registered: Jan 2009
Location: Austin, TX
Distribution: Mint-17.3 with Cinnamon & KDE
Posts: 1,534
Blog Entries: 3

Original Poster
Rep: Reputation: 103Reputation: 103
My access point supports two bands 2.4 and 5.0 MHz (I think).
I see channel lists for 1 to 11. Other lists for 1 to 15. I also see channels up into the high 100's.

Where does one find a definitive list saying: channel number vs. frequency?

Not every device can operate with all of these various channel numbers.

The wifi app on my 'droid phone shows a histogram of channel vs. signal "bars". The "recommended" channel number keeps hopping around. Why? What can I do to find and use something near optimal? I have all sorts of bluetooth and radio remote (A/V) devices -- not to mention light dimmers and other noise makers.

~~~ 0;-Dan

Last edited by SaintDanBert; 01-06-2011 at 03:23 PM.


channel, configuration, radio, wireless

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Can't use wifi on channel 13? kitenski Linux - Wireless Networking 5 12-10-2009 06:15 PM
LXer: 5 Reasons Why You Should Switch to Windows 7 (And 5 More Reasons Why You Should LXer Syndicated Linux News 0 10-24-2009 11:50 AM
LXer: 7 Reasons to Pick Ubuntu and When Not to Choose It LXer Syndicated Linux News 0 10-22-2008 07:30 PM
WiFi interface will no longer pick up an IP address from access point. DiBosco Linux - Wireless Networking 4 12-22-2007 06:42 PM
wifi card keeps changing channel monkeyman2000 Linux - Wireless Networking 1 11-16-2005 04:00 AM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 09:03 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration