From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Greear Date: Mon, 16 Jul 2012 08:00:04 -0700 Subject: [ath9k-devel] do we support 40MHz in 802.11n 2.4G In-Reply-To: <50039C16.4080006@allnet.de> References: <50039C16.4080006@allnet.de> Message-ID: <50042C74.8070203@candelatech.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On 07/15/2012 09:44 PM, Daniel Golle wrote: > On 16/07/12 03:48, Ocean Su wrote: >> But I see below test result. I don?t know why the 2.4G can?t go up to 40MHz. > Probably the spectrum is busy. HT40+/- is only used when there is no other > activity on the secondary channel. You can use the "no_scan" option in > hostapd.conf to override this behaviour and use HT40+/- anyway for testing > purposes (but this is doesn't comply with the 802.11n spec and probably even > regulation) Turn on debugging in hostapd and check the logs...it should print out the reason for not doing ht-40 if you are using recent code. Thanks, Ben -- Ben Greear Candela Technologies Inc http://www.candelatech.com