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Date:      Thu, 8 Sep 2011 15:38:30 +0200
From:      Berislav Purgar <bpurgar@gmail.com>
To:        Lev Serebryakov <lev@freebsd.org>
Cc:        freebsd-wireless@freebsd.org
Subject:   Re: AP performance (again): txpower regulation
Message-ID:  <CAAUsrB6LJ%2BmuTvaqHCySh6e9dMjzshohYFE4PQ3KTezZMZS2JA@mail.gmail.com>
In-Reply-To: <4610390305.20110908154130@serebryakov.spb.ru>
References:  <663133681.20110907193747@serebryakov.spb.ru> <CAJ-Vmonai4LzwanLw7i5d-NyjN2b6GqfttjkdcROvOuEcuzEAw@mail.gmail.com> <437702009.20110907235248@serebryakov.spb.ru> <CAJ-Vmo=R-a%2BqhDLWj1n%2BBj70Pmg4WSL6bVZ6jwCUmNq=v7EBBw@mail.gmail.com> <426917282.20110908125907@serebryakov.spb.ru> <CAAUsrB5Qtokpcz-koUfYWCHrsnUUErQSAYHrXrW2F0Uvp3RzSA@mail.gmail.com> <4610390305.20110908154130@serebryakov.spb.ru>

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On Thu, Sep 8, 2011 at 1:41 PM, Lev Serebryakov <lev@freebsd.org> 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 <lev@serebryakov.spb.ru>
>
>
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



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