From owner-freebsd-wireless@FreeBSD.ORG Thu Sep 8 14:52:19 2011 Return-Path: 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 0A7EF106566B; Thu, 8 Sep 2011 14:52:19 +0000 (UTC) (envelope-from lev@serebryakov.spb.ru) Received: from onlyone.friendlyhosting.spb.ru (onlyone.friendlyhosting.spb.ru [IPv6:2a01:4f8:131:60a2::2]) by mx1.freebsd.org (Postfix) with ESMTP id B83F18FC08; Thu, 8 Sep 2011 14:52:18 +0000 (UTC) Received: from lion.home.serebryakov.spb.ru (unknown [IPv6:2001:470:923f:1:14f9:cfdf:caf2:2c18]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.friendlyhosting.spb.ru (Postfix) with ESMTPA id 655754AC31; Thu, 8 Sep 2011 18:52:17 +0400 (MSD) Date: Thu, 8 Sep 2011 18:52:13 +0400 From: Lev Serebryakov X-Priority: 3 (Normal) Message-ID: <4910491962.20110908185213@serebryakov.spb.ru> To: Adrian Chadd In-Reply-To: References: <663133681.20110907193747@serebryakov.spb.ru> <437702009.20110907235248@serebryakov.spb.ru> <426917282.20110908125907@serebryakov.spb.ru> <4610390305.20110908154130@serebryakov.spb.ru> <1705262661.20110908180850@serebryakov.spb.ru> <458771414.20110908183656@serebryakov.spb.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: quoted-printable Cc: freebsd-wireless@freebsd.org Subject: Re: AP performance (again): txpower regulation 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." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Sep 2011 14:52:19 -0000 Hello, Adrian. You wrote 8 =D3=C5=CE=D4=D1=C2=D2=D1 2011 =C7., 18:38:36: >>> Oi, he shouldn't be breaking regulatory requirements! :) >> =9AI afraid, that 600mW card + 10dB antenna ALREADY out of regulatory >> requirements, as it more than non-licensable 100mW :) > You'd be very surprised how sensitive wireless NICs are. > If this is just for a home access point then it's very unlikely you > need a 600mW card. > I get 130mbit from all places in my apartment .. with a non-high power > 11n NIC. :) And I want to have at least 54Mbit with powerful card :) No luck :( 10Mbit TCP (21Mbit WiFi, I think) is upper limit everywhere but in direct sight of AP antenna. Yes, I have 802.11n 2x2 card on my table ("conventional" one), but I don't have pigtails for it! And nearest pigtails are in Honk-Kong. I've ordered them two days ago, but delivery will be about 30 days :( And some more results: (a) 13 channel is not seen by client, 11 channel is last what it could see, and it is worse than my 9 ch. (b) FreeBSD 9-BETA2 is more aggressive in selecting transfer rate: signal strength is the same, but "ifconfig wlan0 list sta" shows "54M" almost everytime, FreeBSD 8-STABLE shows from "11M" to "48M" from run to run. (c) Real throughput (iperf tcp or udp) is the same with FreeBSD 9 as with FreeBSD 8. --=20 // Black Lion AKA Lev Serebryakov