Return-path: Received: from mail-ob0-f174.google.com ([209.85.214.174]:50395 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754747Ab2EPGIB (ORCPT ); Wed, 16 May 2012 02:08:01 -0400 Received: by obbtb18 with SMTP id tb18so588603obb.19 for ; Tue, 15 May 2012 23:08:00 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: Date: Wed, 16 May 2012 08:08:00 +0200 Message-ID: (sfid-20120516_080806_844207_AA8A10F5) Subject: Re: AR9280 reported signal strengths are flat (comparison with bcm4322 included) From: Holger Schurig To: George Nychis Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: This is probably due to ANI (adapative noise immunity). I think ath9k does too much here, in other words: it doesn't just kick in if there are too strong signals there. Instead it seems to always adjust the input attenuator, needed or not.