Return-path: Received: from exprod7og107.obsmtp.com ([64.18.2.167]:44410 "EHLO exprod7og107.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753306Ab2HWP2n (ORCPT ); Thu, 23 Aug 2012 11:28:43 -0400 Message-ID: <50364AE4.9050401@genband.com> (sfid-20120823_172846_606940_843CD3F0) Date: Thu, 23 Aug 2012 09:23:16 -0600 From: Chris Friesen MIME-Version: 1.0 To: Julian Calaby CC: Lin Ming , linux-wireless@vger.kernel.org, networking Subject: Re: wireless router performance differ with 2.4Ghz vs 5.0Ghz frequency References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 08/23/2012 04:34 AM, Julian Calaby wrote: > Hi, > > On Thu, Aug 23, 2012 at 2:50 PM, Lin Ming wrote: >> Hi list, >> >> I have a wireless router with 2 wireless cards: 2.4Ghz and 5.0Ghz frequency. >> >> The performance for 2.4Ghz is much worse than 5.0Ghz. >> >> Does the frequency affect performance so much? > There are a lot of factors: > - Amounts of other networks on the same channel > - Noise > - Signal strength > etc. > > It's quite possible that there are less networks on 5GHz channels > where you are so there's less noise, stronger signal, and therefore > better performance. Most routers are still only 2.4GHz. In addition to this you may wish to check your channel width. You may be using 40MHz channels on 5GHz and 20MHz channels on 2.4GHz. Chris