From owner-freebsd-wireless@FreeBSD.ORG  Thu Aug  2 18:32:41 2012
Return-Path: <owner-freebsd-wireless@FreeBSD.ORG>
Delivered-To: freebsd-wireless@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 0EFA0106566B
	for <freebsd-wireless@freebsd.org>;
	Thu,  2 Aug 2012 18:32:41 +0000 (UTC)
	(envelope-from adrian.chadd@gmail.com)
Received: from mail-gg0-f182.google.com (mail-gg0-f182.google.com
	[209.85.161.182])
	by mx1.freebsd.org (Postfix) with ESMTP id B6CA68FC0A
	for <freebsd-wireless@freebsd.org>;
	Thu,  2 Aug 2012 18:32:40 +0000 (UTC)
Received: by ggnk4 with SMTP id k4so2618543ggn.13
	for <freebsd-wireless@freebsd.org>;
	Thu, 02 Aug 2012 11:32:40 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
	h=mime-version:sender:in-reply-to:references:date
	:x-google-sender-auth:message-id:subject:from:to:cc:content-type;
	bh=l60uddeGJYiA3NUIWNfRjeSNbtgnwbnXNUEaogUjYYI=;
	b=k/f6F67X6CsG+9ApYrKrNBvrX5d4Nt7xJstp21TIRqZvJtkpsgqEKH2raDrJPqCc0O
	PKDCHRbtR5mxXQ7MIpEqxEQULupdAxuJe1PTaqt0UP1mKvrOvqnuEKtLok0R/qMH0HVD
	+Q9sd2xEm/kfgoqbSYsaYTdHRoTvvxpajcciJ1BvCgMpjQVKnK5vab+qkrZkQXbgCVto
	QT1A3DJzVJjFI2OgC6l18tcXxwlq6kq0yJ5iB+AtWYzxva5cYouYZ5T709yx7Ot4aa4x
	U74fGFiLJAoCkiEJjgfLzXRpBbY4ZAPMx1fOSDtFPbCM190PSvkCNTbcmsF7fjrQcXzZ
	4NPA==
MIME-Version: 1.0
Received: by 10.60.1.165 with SMTP id 5mr38505897oen.70.1343932360069; Thu, 02
	Aug 2012 11:32:40 -0700 (PDT)
Sender: adrian.chadd@gmail.com
Received: by 10.76.151.3 with HTTP; Thu, 2 Aug 2012 11:32:40 -0700 (PDT)
In-Reply-To: <475A4E02EFF4724A9E58F55A56AC1316063D7105@APEVS1.ap.ci.root>
References: <475A4E02EFF4724A9E58F55A56AC1316063B3323@APEVS1.ap.ci.root>
	<CAJ-VmomJOuu334UamvG7=t2oDyq-UNwdCzEUJ0ytT0REKfFxdA@mail.gmail.com>
	<475A4E02EFF4724A9E58F55A56AC1316063B35EB@APEVS1.ap.ci.root>
	<CAJ-Vmo=BXmO9pOPvqhcg_ZFWfgehb3xjrkokQAqAi2hBHS=jcg@mail.gmail.com>
	<CAJ-VmomRhPnw9uLZXGSd-nK1abLuupLRw24J=rS4SGFJXieiLw@mail.gmail.com>
	<475A4E02EFF4724A9E58F55A56AC1316063D6752@APEVS1.ap.ci.root>
	<CAJ-Vmo=8X5QW00jrZ_3qmSpKYyiKb+5Lcs7zE1mhnHjH3cM5=Q@mail.gmail.com>
	<475A4E02EFF4724A9E58F55A56AC1316063D7105@APEVS1.ap.ci.root>
Date: Thu, 2 Aug 2012 11:32:40 -0700
X-Google-Sender-Auth: fNEysjuBBfkUUio7ZvytQbbib8M
Message-ID: <CAJ-VmonMG-3rE9FqzjYTR8rVn4iOZpJGZTEh9hxTr-XR7Wo23g@mail.gmail.com>
From: Adrian Chadd <adrian@freebsd.org>
To: "Wright, Brett" <Brett.Wright@cooperindustries.com>
Content-Type: text/plain; charset=ISO-8859-1
Cc: freebsd-wireless@freebsd.org
Subject: Re: Atheros DFS radar detection
X-BeenThere: freebsd-wireless@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: "Discussions of 802.11 stack,
	tools device driver development." <freebsd-wireless.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-wireless>, 
	<mailto:freebsd-wireless-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-wireless>
List-Post: <mailto:freebsd-wireless@freebsd.org>
List-Help: <mailto:freebsd-wireless-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-wireless>, 
	<mailto:freebsd-wireless-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 02 Aug 2012 18:32:41 -0000

Hi,

Chances are the AR5416 parameters aren't "right" by any long stretch.
You should read the patent docs and see what those parameters mean for
the AR5212. You may find you can do some tuning based on your
environment/antenna setup to reduce false positives, but be sure to
test it with actual radar traffic.



Adrian