Does Atheros AR95XX based chips support non-standard center frequencies and widths, or RouterOS currently don’t support this feature for AR95XX chips?
I have AR9580 based card in RB800 RouterOS 6.0rc12 and channel widths in range 21-30 are not supported.
The same situation is with AR93xx 
You need a extended license. You can buy from mikrotik website
Gesendet von meinem HTC Flyer P510e mit Tapatalk 2
www.restlesspowerbox.com
He’s joking 
select superchannel and see what happens 
please note that currently only AR92xx chipsets are supported for the advanced channels option:
http://wiki.mikrotik.com/wiki/Manual:Wireless_Advanced_Channels#Hardware_support
Dude for advanced channels u need this
Just contact mikrotik support and follow the instructions (u need to fill a form that u will not use this option agains the law bla bla bla …)
You live in the past man. Just leave it.
Documentation is very clear, only read it.
People asked for something is not supported yet and you put them to buy a licence that is free for years.
ROTFL
You can first read the documentation yourself. Lakis is wright, and You’re wrong because now extra channels is active again. Nobody is talking about buying this feature. If you write to MT support, you can update free your license to extra channels. Without it, it’s impossible to use 40-60Mhz channels.
From my point of view, it will be very nice to have it with AR93xx. I wonder how fast 3x3 will work in 60Mhz ?
you need AR9390 or AR9590 cards for costum channel bandwidth support beside 20/40mhz … AR9380 and AR9580 do support only 20/40mhz channels …
beside that you need a routersoftware which supports that too 
Hi and thanks for answer
Where have you found information about that AR9380 don’t have support for channels greater than 40Mhz? I can’t find anything, so please give me some links.
Maybe MT team can bring this functionality to RouterOS. If they did it for AR92xx, they can do it also for newer chipsets.
I already posted what chipsets are working with the advanced channel feature:
Yes, i know that AR92xx are supported for advenced channel feature.
Can You tell us if and when AR93xx/AR95xx will be supported too?
I am wondering for answer of this Question from september 2012