From owner-freebsd-wireless@FreeBSD.ORG Thu Sep 8 13:38:32 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 0A2671065670; Thu, 8 Sep 2011 13:38:32 +0000 (UTC) (envelope-from bpurgar@gmail.com) Received: from mail-yw0-f54.google.com (mail-yw0-f54.google.com [209.85.213.54]) by mx1.freebsd.org (Postfix) with ESMTP id A42268FC14; Thu, 8 Sep 2011 13:38:31 +0000 (UTC) Received: by ywa17 with SMTP id 17so766871ywa.13 for ; Thu, 08 Sep 2011 06:38:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=NJPX3Xpq+jgA/5FNupYsxLwyoeG/lyMsKj7e/PclymQ=; b=jqHLLnYJap8SyoLGddcsVlqG7/AJJeXLVaqvmxXz0HN8MhRcfp0b1xjHQkekEiaBZK 7QwAqtUPGX7tVM6jBEMYEUAh6KSdC/6mMwHXd2BJ6ok1CDGmp/ByXemcGEaceL1umBwt zTk+21pS50WUE8YKeQhWkczSTN2p2XcRMG+6A= MIME-Version: 1.0 Received: by 10.68.36.227 with SMTP id t3mr1112415pbj.273.1315489110249; Thu, 08 Sep 2011 06:38:30 -0700 (PDT) Received: by 10.142.246.15 with HTTP; Thu, 8 Sep 2011 06:38:30 -0700 (PDT) In-Reply-To: <4610390305.20110908154130@serebryakov.spb.ru> References: <663133681.20110907193747@serebryakov.spb.ru> <437702009.20110907235248@serebryakov.spb.ru> <426917282.20110908125907@serebryakov.spb.ru> <4610390305.20110908154130@serebryakov.spb.ru> Date: Thu, 8 Sep 2011 15:38:30 +0200 Message-ID: From: Berislav Purgar To: Lev Serebryakov Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 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 13:38:32 -0000 On Thu, Sep 8, 2011 at 1:41 PM, Lev Serebryakov wrote: > Hello, Berislav. > You wrote 8 =D3=C5=CE=D4=D1=C2=D2=D1 2011 =C7., 13:14:38: > > > gateway# ifconfig wlan1 scan > SSID/MESH ID BSSID CHAN RATE S:N INT CAPS > House 54:e6:fc:c2:08:ca 1 54M -71:-96 100 EPS RSN WPA WM= E > HTCAP ATH WPS > gooodini 00:26:5a:ff:ee:e5 2 54M -87:-96 100 EPS RSN WPA WM= E > HTCAP ATH > default 00:1f:c6:3c:24:7a 6 54M -80:-96 100 E > 00:1e:58:2d:ea:67 3 54M -94:-96 100 EP RSN ATH > ZXL 00:19:cb:0a:71:bc 10 54M -96:-96 100 EP WPA > asus 20:cf:30:88:b5:90 1 54M -91:-96 100 EP WPA > Vlad 00:19:5b:e1:f1:aa 6 54M -89:-96 100 EPS > interzet@2 00:26:18:c6:81:98 1 54M -94:-96 100 EP HTCAP WPS > WPA WME > knyagna 00:18:e7:ec:1d:eb 3 54M -144:-96 100 EPS RSN WPA W= ME > HTCAP ATH WPS > > I notice one thing: in periods, when client was kicked from AP, it shows > much stronger signal (sbout -45 dB when -65 is average with associated > client). > > > i have AR5212 and it work great over 6m inside house (2 walls). > > transfer rate i get is 2.4~3.2MB/s > My previous card (500mW some strange Australian brand name, buyed on > eBay, AR5212 based) gives me comparable results, yes. But I've fried it = at > hot summer AND change apartment at almost same time AND upgrade FreeBSD f= rom > 7 to 8 on router (I didn't have much time to watch HD movies after > relocation, and didn't notice when situation becomes worse -- there was > period of time when WiFi bandwidth didn't bother me at all). So, I'm not > sure now, is it new card is crap or new apartment has "shielded" inner wa= lls > or FreeBSD8 has other power management. I've tried to build old FreeBSD 7 > image for router, but failed somehow -- kernel hangs on boot. I'll try mo= re > in near future. > > -- > // Black Lion AKA Lev Serebryakov > > i think that you have problem with interference from 802.11N based AP (i see 5 ht ap from scan). you can try changing channels (13,14 channel) and txpower (txpower 0-10) and see what happens. Beri