From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lars Hardy Date: Sun, 11 Jul 2010 13:45:33 +0200 Subject: [ath9k-devel] Question about ath9k signal strength (AP mode) In-Reply-To: <4C399EB4.5080508@free.fr> References: <4C389BD6.9080703@gmail.com> <4C399EB4.5080508@free.fr> Message-ID: <4C39AEDD.8010803@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org Benoit Papillault skrev: > Le 10/07/2010 18:12, Lars Hardy a ?crit : >> It seems that there is a difference in signal strength between the ath9k >> (latest openwrt-trunk with compat-wireless 08.07.2010) driver and the >> latest dd-wrt (madwifi N?) driver. >> The dd-wrt driver has better signal strength and performance when a STA >> is some distance from the AP. (like 1 floor/2 rooms between) >> I have tried with 2 different Atheros chipset in AP mode, the AR5416 and >> AR9280. dd-wrt gives a stronger signal with both chipsets compared with >> openwrt. >> >> I know the ath9k is under development, so my question is if this is >> known by the development team and therefor will be worked on? >> >> Lars > > [ignoring other not very informative post...] > > Did you measure the signal strength on the STA side? What tool did you > use? iw / iwconfig ? > This was from the client side, with an AR5416 MAC/BB Rev:2 AR5133 in HT40 - as AP. Tested a bit further and It seems that the signal is only weaker when ath9k use the 5 Ghz band. (pretty much the same as dd-wrt in 2.4 Ghz) iw reported: Router with dd-wrt: signal: -72.00 dBm Router with OpenWrt: signal: -80.00 dBm (from this distance the STA could not connect when using OpenWrt but connected when dd-wrt was on the router) STA is an AR5418 AR5133 card, using the same/latest compat-wireless as OpenWrt. > Is there a way you can bisect between OpenWrt and dd-wrt? I have > AR5416, AR9160 and AR9280 myself, so I can test if you tell me what > version you used. > I'm sorry but I have no idea how to do that. I only used the latest dd-wrt binary: ftp://ftp.dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/06-30-10-r14684/ > Regards, > Benoit